can i use my travel trailer without a battery

The Savvy Campers

Can You Use Your Travel Trailer Without A Battery?

Your travel trailer came equipped with a battery, but do you really need it? Whether you’re hooked up to another power source, looking to replace your battery (or not), or are just curious, the question remains the same.

Travel trailers can be used without a battery, though you will need a battery if you want to tow, or operate anything electronic on your trailer such as lighting or a refrigerator. A battery will be needed for towing to operate the brakes just in case your trailer becomes unhitched from the vehicle.

But in other situations, it’s completely fine to use your travel trailer without a battery if you don’t need any accessories or are constantly hooked up to 120v power. Though it may limit your trailer’s capabilities, it won’t damage your trailer or any of its systems. Most power converters work fine without a battery, so it’s up to you to determine whether or not a battery is truly needed.

Can I Use My Travel Trailer Without A Battery?

Yes, you can use your travel trailer without a battery. It won’t damage your trailer, converter, or any related systems. If you do not have 120v power, you won’t be able to use any electronic devices such as lighting, a refrigerator, a water heater, etc…

Batteries power a great deal of what you find in your trailer but certainly aren’t a necessity. Even without a battery, you’ll still be able to use your travel trailer.

Essentially, it all comes down to your own preference and what you value most. If you have 120v hookups otherwise known as shore power, you can actually use your trailer without a battery. Take a look at the list below and check out our suggestions:

• Convenience – In the short term, it’s more convenient not to have to worry about a battery. However, batteries often make trailer life easier in the long term.
• Cost-Savings – It can be costly to protect, charge, and replace batteries, which is why many people consider getting rid of them altogether.
• Safety – Batteries power important safety components like smoke alarms, so it’s advisable to have them if just for this reason.
• Preparation – If you want to be prepared for anything life may throw at you, then batteries are a must-have.
• Basic Living – For those who only need the basics to be comfortable, using a travel trailer without a battery will probably be an easy adjustment.

Remember that there are certain situations where it’s advisable and/or required to have a battery for your travel trailer. We’ll cover this more in-depth later, but it’s useful to keep this in the back of your mind as you consider your options.

There are some people who always prefer to have a battery on hand, while others are able to continue using the travel trailer just fine without a battery. Again, it all depends on your lifestyle, what you’re using the trailer for, and where you’re going.

What Can I Use Without A Battery?

There are several components in your travel trailer that your battery doesn’t power. Therefore, these are the parts of your trailer that you can’t use even without an RV battery:

• Air Conditioning – You can hook up to a generator (at least 3,000 watts) or plug into a power source (such as at an RV park) to use your A/C.
• RV Refrigerator – Just like the A/C, an RV fridge can be run on either propane or electricity; for the latter, you’ll need to be plugged into a power source. For propane, you still need a battery to power the computer.
• Microwave – The fridge isn’t the only kitchen appliance that doesn’t use batteries; you can use a generator or external power source to heat up your waffles and burritos.
• Power Outlets – Though this isn’t always true, many power outlets in travel trailers can run on external power sources such as shore power or a generator and don’t rely solely on batteries.
• Television – This may be redundant if you prefer to stream shows on your phone, but the TVs in your trailer can run on alternate power sources.

Whether or not you use them sans-power is up to you. Either way, it’s better to know upfront what you’ll still be able to use without a battery.

When You Need A Battery in Your Travel Trailer

 Though it’s possible to use your travel trailer without a battery, there are times when doing this can pose serious safety and health risks. Below are some situations in which you absolutely need a battery in your travel trailer.

When Driving and Traveling

An RV battery is absolutely necessary while driving your tow vehicle. This is because batteries power all of the following:

• Tail Lights
• Brake Lights
• Marker Lights
• Electric Wheel Brakes
• Dash Accessories

All of these must be operating correctly if you want to pull your trailer. It’s illegal to drive without the lights and parts listed above- ergo, you’ll need a battery if you want to, well, actually travel with your travel trailer.

During Colder Seasons

And when it hits fall and winter, you should also err on the side of caution and use a battery. Batteries power the following elements related to your heating system: 

• Heater Fans
• Ceiling Vents

So without a battery, it can become very cold in your trailer, very quickly. While this may not be a problem while the weather is mild, it’s risky at best and dangerous at worse in other conditions.

And since the weather can be unpredictable while you’re traveling, it’s always best to take safety precautions just in case. Even if you’re already parked (in your backyard, a campground, or somewhere else), it’s best to have an RV battery on hand.

When Inside the Trailer

Okay, we know this one is kind of confusing. We said that you can use your trailer without a battery, but now we’re saying you should have one whenever you’re inside it? Let us explain.

Batteries protect you by making sure the safety measures installed in your trailer are working properly. These include:

• Propane Leak Detectors
• Carbon Monoxide Detectors
• Smoke Detectors/ Fire Alarms

Just like your home, common appliances may emit carbon monoxide or propane, such as heaters, gas ranges, and generators. As such, all of the detectors listed above are required by law to be installed in travel trailers.

But these may not operate without a trailer battery, potentially placing you in a life-threatening situation. Since trailers are smaller spaces and often more poorly ventilated, these detectors are even more important.

During Power Outages

If you’ve decided to skip replacing your camper battery and are instead using another power supply, such as at a permanent site or RV park, then it’s likely you won’t even notice the difference… until the power goes out.

Besides serving as a primary energy source, batteries also function as a backup energy source in the event of a power outage. They are especially useful during inclement weather, such as:

• Heavy Rain and Floods
• Snow, Sleet, and Hail
• Hurricanes and Storms

Batteries can also save the day during unexpected grid failures, which aren’t always tied to the weather.

Depending on the weather outside and/or the length of the outage, it can be vital for you to have batteries and access to working appliances.

What Else Does the Battery Power?

Many parts of your travel trailer require batteries to run. These include:

• Lights – Lights aren’t always necessary, especially during the day, but they can still draw a significant amount of energy from your batteries when they are on.
• Water Pump – If your water is running, it’s using power. Typically, the water pump draws energy from the batteries.
• Range Hood – Not many people think about their stove range, the light and fan are both powered by batteries.
• Bathroom Fan – Just like the range fan, bathroom fans run on batteries. Depending on your (or someone else’s) last meal, this fan can be a necessity.
• Slide and Jacks – The slide and powered jacks typically depend on batteries to run, though they can function if you hook the trailer to a running vehicle.
• Electric Awning – If your trailer has an electric awning, be aware that it’s probably run using a 12V battery.

Keep in mind, your batteries won’t last forever. You’ll need to recharge them, though how soon (or how often) will depend on the amount of energy you’re using.

For example, your travel trailer batteries will last a long time if you’re only using powered jacks and lights. But if you’re also running the heater, the batteries will probably only last a few hours unless you have a higher amp hour battery .

Yes, you certainly can use a camping trailer without batteries, the question is…do you really want to? The decision is up to you and your family and what will work best. Our family enjoys the convenience of what using our batteries offers us, so we will always use batteries. We hope this article answers this very important question and helps you be more prepared for your next adventure! Happy camping!

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Do I Need A Battery For My Travel Trailer?

• Last Updated: March 3, 2024
• 11 minutes read

Travel trailer batteries are often an afterthought until they cease to do their job properly.

This is largely what leads many travel trailer owners or inexperienced RVers to ask: do I need a battery for my travel trailer?

The answer is yes! Unless you always leave your travel trailer in one place and it’s plugged into shore power 100% of the time, a battery is crucial to the safe operation of your travel trailer. It is required to provide power to the electrical components that allow you to safely tow your trailer to new destinations. Without a battery, towing your trailer safely (and legally!) is virtually impossible.

But even if your travel trailer is permanently parked, you’ll need a battery to convert the shore power that you’re plugged into to the correct current for your appliances to utilize.

When all is said and done, a travel trailer battery is essential to the operation of almost all of the electrical components inside and outside of your travel trailer. 

So, instead of asking if you really need a battery to operate your travel trailer safely, the better path is to learn how to use them, how to replace them when they reach the end of their life, and how to select the correct type and size of battery for your specific trailer. 

Luckily for you, that’s exactly what we’re going to focus on today. So let’s jump in!

Why Do I Need A Battery For My Travel Trailer?

There are a healthy collection of reasons why you should always have a battery secured and wired into your travel trailer. Here is a quick list of those reasons: 

Power for taillights, brake lights, and dash accessories

Power for electrical appliances that require 12-volt DC power

Power for other appliances (through the use of an AC converter)

Converting shore current AC back to DC at campgrounds

Storing power from a solar panel installation

Power for smoke detectors, carbon monoxide sensors, and other safety equipment

As you can see, travel trailer batteries are important to a number of critical functions on your travel trailer.

So, now that we’ve established the fact that you absolutely need a battery for your travel trailer, let’s move on to address how to choose the right battery for your specific trailer. 

What Kind of Battery Do I Need For My Travel Trailer?

When you head into your local auto parts or RV parts store, you’ll probably find a section with a wall full of batteries that essentially all look the same.

But this can be a classic case of judging the book by its cover (battery by its shell?) because there are actually many different types of batteries and they are all designed for different vehicles. 

In general, almost all travel trailers, 5th wheels , and RVs require deep-cycle batteries. These are the same batteries that some other equipment relies on, such as boats, golf cart, forklifts, and more.

They are the preferred battery type for travel trailer use because they boast an increased recharge frequency and longer lifespan than other battery types.  

Travel trailers rely on deep-cycle, lead-acid batteries and these batteries are built to supply continuous power for long periods.

This is what makes them one of the more reliable types of batteries for use in travel trailers and other recreational vehicles. 

When it comes to discharge, lead-acid batteries can continue to function effectively until they are about 80% discharged.

However, discharging your battery to this extent regularly will significantly reduce the battery’s lifespan.

For that reason, many lead-acid battery manufacturers recommend avoiding discharging your battery past 45% if you want to optimize the lifespan of your battery. 

Types of Deep Cycle Batteries

While there are other types of batteries that aren’t labeled as ‘ deep cycle ’, travel trailer owners should stick to this type of battery to supply power for their rigs.

But under that heading, there are actually two types of batteries that you’ll need to choose from. So, let’s define these types and discuss a few of their advantages and disadvantages. 

Flooded Deep Cycle Batteries

This is the more conventional type of deep cycle battery. They are usually more affordable than their sealed counterparts, but they can require more maintenance over the entire life of the battery. This type of battery also tends to corrode faster than its competition.  

With flooded deep cycle batteries, you’ll be responsible for monitoring the water level inside the battery and refilling it when it drops below a certain level.

These batteries can only handle being discharged up to 50%, which also means that you’ll be required to clean and recharge this type of battery more often than a sealed deep cycle battery. 

Sealed Deep Cycle Batteries

This type of battery generally comes with a higher price tag than a flooded battery.

But they also require less regular maintenance and they generally have a longer lifespan. 

There are actually two types of sealed deep cycle batteries that you’ll be able to choose from. 

Absorbed Glass-Mat (AGM) Batteries

This type of sealed battery can be charged up to five times faster than a conventional flooded battery and can also handle being discharged up to 80% without experiencing a significant loss in overall lifespan. 

While this type of sealed battery is also very adept at withstanding cold temperatures, AGM batteries can be susceptible to overcharging.

When overcharged, they can sustain irreparable damage that will ultimately require you to replace the entire battery. 

Gel Batteries

Like AGM batteries, sealed gel batteries also require much less regular care than conventional flooded batteries.

Gel batteries are also adept at handling extreme temperatures at both ends of the spectrum and can withstand excess vibrations without being damaged. 

This last point makes these batteries great for off-grid RVers and those that want to tow their travel trailers on rougher dirt roads to more remote locations.

That being said, we wouldn’t recommend this type of battery for inexperienced travel trailer owners because they charge very slowly and they also come with a higher risk of damage than other types of batteries for travel trailers. 

What Size Battery Do I Need For My Travel Trailer?

Now that you know a little more about the type of batteries you can select for your travel trailer’s electrical needs, it’s time to consider battery size.

But there are mainly just two battery sizes for you to choose from: 6-volt batteries versus 12-volt batteries. 

6-Volt Batteries

Although they are obviously smaller than 12-volt batteries, six-volts are actually a great choice for off-grid living or remote camping.

These batteries have more space between their storage cells, which translates to thicker plates and, therefore, increased lifespan. 

Six-volt batteries can also sustain deeper discharges and supply a higher amperage output, which are two more reasons they are great for dry camping or boondocking.

In many cases, travel trailer owners that like to explore more remote destinations will opt to install two six-volt batteries instead of one 12-volt alternative. 

12-Volt Batteries

If you’re largely going to be traveling from campground to campground (and even occasionally staying in a truck stop or Wal-Mart parking lot), there’s really no reason you’ll need anything other than a 12-volt battery. 

These batteries are actually a hybrid between a deep cycle battery and a starting battery.

When used in parallel with another 12-volt battery (which is a common travel trailer and RV installation), these batteries will only discharge to the level of the weakest cell.

This will mean less ability to withstand deep discharges and also a reduced lifespan. 

How Many Batteries Do I Need For My Travel Trailer?

The answer to this question will depend on whether you choose six-volt or 12-volt batteries.

If you choose to install six-volt batteries in your travel trailer, you’ll need to purchase 4-6 six-volt batteries and install them in a series to obtain maximum amperage. 

If you choose the 12-volt alternative, you’ll still need to purchase two 12-volt batteries to accommodate your trailer’s electrical needs.

These batteries will need to be installed in a parallel configuration to achieve optimal amperage output. 

Please keep in mind that these are standard recommendations based on the most common battery configurations you’ll find on travel trailers these days.

If you have installed a collection of solar panels on top of your trailer, for example, you may consider installing additional batteries to increase your ability to store additional power for longer boondocking trips. 

Tips For Replacing The Battery In Your Travel Trailer

If your battery has reached the end of its long lifespan, it’s time to find and install a comparable replacement.

While the tips above will help you identify and select the right type, size, and number of batteries you need for your travel trailer, here are a few additional pieces of advice to help you replace your battery properly. 

Come One, Come All

Because travel trailer batteries are designed to be installed in a series or in a parallel configuration, you’ll need to replace all of your batteries if you find that one or more no longer holds a charge.

Replacing just one battery in a series or a parallel configuration can actually ruin the rest of the batteries in that setup. 

From a practical standpoint, it simply makes sense to replace all batteries at once so that all of your batteries are the same age.

It also means that you don’t have to perform this type of maintenance and replacement at different times.

Once you go through the process of removing one battery in order to replace it, it simply makes sense to replace all of them at once.

Safety First

Before you start touching any of the hardware or components holding your batteries in place, it’s important that you consider your own safety.

We recommend wearing safety goggles and rubber gloves to prevent getting sulfuric acid on your hands or in your eyes. 

Next, you’ll need to turn off the main battery disconnect switch if your trailer is equipped with one.

If it’s not, you should power down all individual breakers and switches before opening the battery hatch and handling your battery. 

When you do open the battery hatch, be sure to check to make sure your battery hasn’t spilled (flooded batteries only).

If you do notice any spills, corrosion, or external damage to your battery, please seek professional assistance before continuing this process. 

Remove Old Batteries

If everything looks as it should once you remove your battery hatch, it’s time to disconnect the electrical cables on your battery. Remove the negative (black) cable first to avoid shortages or blown fuses. 

Then, you can loosen wing nuts or bolts that are holding your battery in place. You may need to use a socket wrench or pliers for this step, depending on how tight those nuts or bolts are secured in place. 

Finally, remove the positive (red) cable and make sure it does not touch the negative cable when you set it down.

Also, never touch the terminals on the positive and negative cables with your hands, as this can cause a painful (and potentially lethal) electric shock. 

Now that the terminals are detached and the nuts/bolts are loosened, you can remove the battery and find an approved recycling facility in your area where you can dispose of it.

If you have a flooded deep cycle battery, be careful to keep it level and avoid spilling its contents as you remove it. 

Also, keep in mind that this process will need to be repeated for all of the batteries in your travel trailer’s particular battery configuration. 

Clean Connections

Before you put new batteries back into place, you should take this opportunity to clean off the terminals and remove any dirt and debris from the battery storage area.

Try to avoid using any water during this cleaning process. It’s best to simply scrub the terminals with a dry brush that has medium to stiff bristles.

To remove dust, dirt, and debris from the holding area, simply wipe it out or use one of the best RV air compressors to blow the area clean. 

Install New Batteries

Now you can place your new batteries into the holding area and begin by connecting the positive (red) cable.

Now, gently tighten the wing nuts or bolts that secure your batteries into place, but don’t crank them down as tight as possible just yet.

Then, attach the negative (black) cable and secure the nuts/bolts down the rest of the way. 

Confirm Secure Installation

Your final step will be to confirm the success of your new battery installation.

You can use a multimeter to check the voltage at the battery terminals or you can turn on the main battery disconnect switch (or individual breakers) to check that all of your appliances, lights, dash accessories, and other critical electrical components are functioning properly. 

Travel trailers simply can’t function to their optimal potential without a quality deep cycle battery.

Of course, the type, size, and even number of batteries you may need will depend largely on the size of your trailer and its appliances, as well as your personal power preferences. 

We hope that you’ve learned a lot about the requirements and considerations for replacing the battery in your travel trailer today.

And, as always, we wish you nothing but the best of luck on your upcoming trailer travels and outdoor adventures!

About Author / Aaron Richardson

Aaron Richardson is an expert RVer and the co-founder of RVing Know How. Aaron, along with his wife Evelyn, has been living and traveling in their Keystone Fuzion RV since 2017. Their adventures span across the country and beyond, including memorable RVing experiences in Mexico. Aaron's passion for the outdoors and RVing shines through in his writings, where he shares a blend of travel stories, practical tips, and insights to enhance the RV lifestyle.

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You truly don’t need a battery in a travel trailer if you are plugged in to shore power. The only reason you would need a battery is for the breakaway switch to operate when you tow the trailer somewhere. The converter will provide all the DC power that is needed from the shore AC power and would also provide AC power for the 120 receptacles, microwave, air conditioner etc. The only other thing the battery is handy for is operating the refrigerator on LP gas if the power goes out. Many times I disconnect the battery because the converter chargers will overcharge the battery and I use a quality charger to float charge the battery and reconnect the battery if we are going to leave the camper for a period of time and the battery will back up the refrigerator when it auto shifts to LP gas mode. So in most cases the house battery is not needed at all.

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Do I Need a Battery for My Travel Trailer?

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RV batteries are a fundamental feature of your travel trailer, yet they are the least recognized. In reality, the travel trailer battery is the backbone of just about every electrical component. But, people always seem to ask: Do I need a battery for my travel trailer?

While operating your trailer without this power source is possible, it is an unnecessary risk to take. Instead, learning about travel trailer batteries, how to use them, and which kind to get is the only way to encourage their lifetime and efficiency.

Do I Need a Travel Trailer Battery?

In most cases, yes, you do need a travel trailer battery or battery bank. While it is possible to use your trailer without batteries, you won’t get the most out of it with no power.

Almost every travel trailer sold nowadays come with batteries pre-installed. If you have an older model with dead batteries or no batteries altogether, you should consider getting some.

Why Do I Need a Travel Trailer Battery?

There are various reasons you should use an RV battery in your travel trailer.

First, batteries give power to the system that allows your tail lights, brake lights, marker lights, electric wheel brakes, and dash accessories to function. These features must be operating correctly to pull your trailer legally.

Moreover, most if not all, of your electrical appliances and lighting run on 12-volt DC power and the batteries provide this power. The 120-volt alternating current (AC) power, or shore power, charges the 12-volt DC house battery system. The 120-volt AC power converts into 12-volt DC power, which provides energy components, such as the fridge, furnace, lights, and water pump.

Even those who park their trailer at a campsite need a battery to convert the current. It will also keep your systems functioning correctly if the shore power fails due to an outage.

Without a battery, your detectors for propane leaks, carbon monoxide, and fires will not operate, potentially leaving you and your family in a life-threatening situation. Additionally, you will not be able to use any 12-volt lighting, meaning you will need to rely solely on flashlights. Therefore, having a battery in your travel trailer will keep you safe and out of the dark.

Battery power will charge your 12-volt propane appliances since the last thing you want is for your refrigerator full of fresh groceries to go to waste. Luckily, with this source of power, you will be able to continue running your pre-cooled unit, and, in turn, save your food.

What Kind of Battery Do I Need for My Travel Trailer?

Although batteries may look similar, they are very different. Taking the time to choose the best battery for your camper will pay off in the long run.

Travel trailers only run on deep-cycle batteries. Boats, materials handling equipment, golf carts, and other larger units also rely on this RV house battery, as it is dependable and efficient.

These lead-acid batteries provide continuous power over more extended periods making them more reliable than others. Most versions run dependably until 80% discharged; however, discharge should never exceed 45% to promote battery life.

Travel Trailer Battery Types

There are two main types of batteries for RVs and travel trailers: lead-acid and lithium.

Lead-acid travel trailer batteries have long been the most common, but they’re quickly being replaced by lithium and we’ll talk about why in a second.

Lead-acid deep cycle batteries come in two different varieties – flooded and sealed. Each has unique features but are comparable for their increased recharge frequency and longer lifespan.

Conventional flooded electrolyte batteries are cheaper yet require more maintenance. With this system, users must monitor the water levels and fill them as needed. Flooded batteries also corrode faster and only handle a discharge of 50%, meaning they need to be cleaned and charged more often.

Flooded batteries are the cheapest, but they also provide the lowest performance, require maintenance, and do not last as long.

Sealed batteries, on the other hand, are divided into two subcategories. Both are pricier than flooded but require less maintenance and last longer.

AGM Travel Trailer Batteries

Absorbed glass mat (AGM) batteries accommodate users, as they do not need regular care. They also charge up to five times quicker than flooded, can handle a discharge up to 80%, and will easily withstand the cold temperatures of winter. Users should be aware that these batteries are highly susceptible to overcharging, resulting in irreparable damage.

Gel Travel Trailer Batteries

Gel batteries are also sealed and do not need as much care. They are great for extreme temperatures and handle excess vibration. Note that these batteries are not for inexperienced RVers due to their slow charging rate and high risk of damage.

Lithium Travel Trailer Batteries

Lithium batteries for RVs and travel trailers cost the most up-front, but they last much longer, have a longer warranty, and are substantially more efficient.

Lithium ion batteries are also smaller and weigh less than lead acid battery types.

With proper care, lithium batteries have a lifespan of 10+ years. 

And compared to lead acid batteries which can only be discharged 50%, you can discharge lithium batteries all the way without worry of damaging the battery. 

What Size Battery Do I Need for My Travel Trailer?

Battery size for your travel trailer is vastly dependent upon your needs as a camper. Choosing two 6-volt batteries versus a 12-volt battery makes all the difference when it comes to cost and longevity.

Although 6-volt batteries may seem small, they have a lot more spunk than you might think. Also called a “golf cart” battery, 6-volts are the only real deep cycle battery. They have more space between each of its 2.1-volt cells, which means their thicker plates will increase its life. Due to their deeper discharge and higher amperage output, they work best for those who boondock or live off-grid.

Conversely, a 12-volt battery is a deep cycle and starting battery hybrid . When in parallel, it will only charge to the weakest cell’s level, making it less desirable than the 6-volt counterpart. Aside from this disadvantage, these batteries are perfect for those who travel from campground to campground.

Keep in mind that you will need to purchase either four to six 6-volt batteries or two 12-volt batteries to accommodate your trailer. Wire the 6-volts in a series and the 12-volts in a parallel configuration to obtain the most amperage.

How to Charge RV Batteries

Learning how to charge RV batteries for your travel trailer properly takes time and practice. Knowing how the system works makes the experience much more pleasant, as well.

While a converter is technically a charger, it does not do the best job. This device transforms 120V AC to 13.2V DC, which powers the 12V DC systems. Although the converter gives out over 40 amps, it charges batteries between three and five amps. Unfortunately, fully charging batteries at this amperage takes a considerable amount of time.

Purchasing high-quality chargers, on the other hand, will effectively juice up your batteries at a faster rate. They will also help you decide when and how long to charge the batteries. Today, there are various chargers on the market that are guaranteed to fit your needs.

Microprocessor-controlled chargers, or “smart chargers,” use algorithms to adjust for the needs of the battery. This method is the most precise and trustworthy for charging, as it changes the voltage and current as needed. Using a smart charger also eliminates worry about overcharging or damaging your battery. I like the Schumaker Fully Automatic Battery Charger and Engine Starter . My Battery charger is over 10 years old and still works great.

If you are looking to charge your RV batteries with solar panels, be sure to use maximum power point tracking (MPPT). Like the smart charger, the MPPT also uses algorithms to measure voltage and alter the current. Unique to this device, however, is the way it regulates power depending upon light conditions. As with any solar-powered device, charge your batteries during the day to utilize the sun’s energy.

For those who dry camp, or boondock, generator power is the best way to charge your batteries. On its own, this method does not work well, as its 8-amp maximum does not supply enough energy. Instead, plug your smart charger into the generator’s 120V AC outlet to increase the charging speed.

How to Make Your RV Battery Last

RV batteries are not cheap, so make the most of your money by following these suggestions to promote its lifespan. Also, consider purchasing a battery monitor to track the amount of charge, voltage, usage, and time left to charge. This feature will alleviate any confusion and keep you informed about the status of your battery.

Perform routine maintenance and immediately recharge discharged batteries to make your batteries last longer. Furthermore, purchasing a digital voltmeter is highly recommended to monitor the status of your batteries.

Note that a 12-volt battery is 12.7-volts, meaning you should never allow discharge to dip below 50% or 12 volts. Realistically, you should not let it drop under 80%, or 12.4 volts to avoid sulfation, or the formation of small, lethal crystals. Hot temperatures and overcharging will also destroy your battery. Try to keep the system from getting too hot and avoid charging too long. Frequently check your water levels and replace electrolyte levels whenever necessary. Only use distilled water, as regular water causes calcium sulfation.

Always charge your battery in stages. During the first phase called bulk charging, boost it up to 90%. Next, switch to absorption charging for the remaining 10% to prevent gas buildup and water loss. The last step is called the float stage and works to maintain a full charge. As a reminder, prevent water loss by leaving vent caps on while charging and water only after powering is complete.

Travel Trailer Battery Replacement Tips

Deep cycle batteries for RVs are not like starter batteries, as you cannot jumpstart them. If your battery no longer maintains a charge, each requires a replacement. For example, if you have two batteries in parallel or six in a series, change them all to avoid ruining the others. Fortunately, swapping them out is rather straightforward once you get the hang of it.

First, remember to put on goggles and rubber gloves to protect yourself from sulfuric acid. In preparation, make sure the main disconnect switch is turned off. Power down individual breakers and switches instead if your travel trailer does not have this switch.

Next, open the battery hatch and check if your battery has spilled at all before handling. If there is any damage or corrosion, seek professional help to fix the issue.

Now, you’re ready to take out the old battery. Remove the negative cable (black) first to prevent any shortages or blown fuses. To loosen the wing nut, use a socket wrench or pliers. Then, disconnect the positive cable (red), but do not let it touch the negative cable. Furthermore, do NOT touch the black and red terminals with your hands, as this can cause a lethal electric shock.

With the terminals detached, carefully remove the house battery. If it is dead, properly dispose of it by visiting your locally approved recycling facility. Otherwise, move it into a secure storage area for next season.

Before installing the new unit, clean the connections and holding area. After completion of this step, place the batteries in their compartment. First, attach the positive cable (red), then connect the negative cable (black). Secure the area, check the voltage, and turn on the main breaker switch or individual breakers to confirm the success of the installation.

Should I Disconnect the RV Battery When in Storage?

Properly winterizing your trailer before storing makes all the difference come spring. It is during this time that you should also be thinking about your RV battery.

Freezing temperatures will kill flooded cell batteries; therefore, you should never leave them in your trailer during storage. Alternately, take them home with you and tend to them over the winter months. Even when batteries are disconnected, they will eventually discharge over time. To prevent sulfation, check them every month and perform an overnight charge if they fall below 80%.

Removing your batteries is also important to avoid excess drainage. For example, utilities that run on standby power, such as your LP gas leak detectors, clocks, appliance circuit boards, stereos, and tv antenna power boosters, decrease the life of your battery. As a preventative, turn off these appliances when they are not in use or while the trailer is in storage.

If you choose to leave in your batteries, you will likely purchase a new one the following season. For those who must leave their batteries in storage, check on your trailer frequently. Taking these simple precautionary measures saves you in the long run, as your battery is the most valuable feature of your travel trailer.

What is the Best Travel Trailer Battery?

Today, many brands offer lower cost, efficient batteries. How long they last, however, varies depending on your maintenance and care routine. Regardless, choosing a high-quality battery gives you a head start and leads you in the right direction.

As previously mentioned, AGM batteries are perfect for campers who enjoy low-maintenance, easy-to-use systems. They are pricier than flooded batteries, yet their benefits outweigh the cost.

The Universal Power Group 12V 100Ah is one of the newest and highest-ranking batteries on the market. It holds a charge well during both storage and usage time and lasts much longer than competing brands. For example, during a month of storage, it only discharges 3%!

AGM batteries are known for their fantastic storage ability and resistance to corrosion, sulfation, and hydrogen gas explosions. For these reasons, they are currently the safest lead-acid batteries to date.

Although the Universal Power Group 12V is a tad heavier than others and a bit more expensive, its safety features and maintenance-free needs make up for its shortcomings.

What is the Best RV Battery for Dry Camping?

Dry camping, or boondocking, requires more thought than campground stays. Without an electric hookup, RVers must be mindful of their energy output.

Some batteries are much better than others for boondocking. Mainly, you want to find one that increases your amperage while maintaining lifespan.

The top-rated VMAXTANKS 6 Volt 225Ah AGM battery does just that, as it is ideal for dry campers looking to get the most bang for their buck. Combining up to six in a series will allow you to power your entire RV longer with no issues. It can also be used to accumulate solar and wind energy and works well as a backup power source.

This battery is leak-free and spill-proof due to its sealed design, and with the appropriate care, it will last you longer than most. The price is well worth the quality, as it is both reliable and convenient.

How Can I Protect My Travel Trailer Batteries From Theft?

Every year someone’s batteries are stolen from their travel trailer. It’s a shame but batteries are valuable because they are expensive and they are easy to get to especially if they are mounted outside of your camper trailer. So, the battery box was invented to protect your batteries from theft. A battery box mounts on the tongue of your travel trailer and keeps your batteries secure under lock and key.

RELATED READING: Check out our article 10 Most Googled Travel Trailer Camping Questions for even more popular questions about Travel Trailer camping.

Be sure to give your battery the love and care it deserves, as it works hard to keep your trailer powered and functioning. Contrary to belief, you do not need to replace your battery every year if you follow the proper guidelines. By choosing high-quality batteries and performing routine maintenance, your battery will last you much longer.

Do you have any advice about how to maintain your batteries? Please share your comments below!

For more helpful articles about travel trailers please check out our articles below:

• 20 Amazing Decorating Ideas for Your Travel Trailer or RV
• The Best SUV for a Towable Travel Trailer
• 250+ Perfect Names for Your RV or Travel Trailer
• RV Weight Explained – Travel Trailers, Motorhomes, and 5th Wheels
• Travel Trailer Depreciation: What’s My Travel Trailer Worth?
• Travel Trailer Turning Radius Tips
• Can I Legally Ride In A Travel Trailer?
• 8 Best Small Camping Trailers with Bathrooms
• 25 Beginner Tips for Travel Trailer Camping
• What Size Generator Do I Need For a Travel Trailer?
• How To Level a Travel Trailer on a Slope

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Do I Need A Battery For My Travel Trailer?

Jonathan Holmes 5.0 Rated 5.0 out of 5 5.0 out of 5 stars (based on 44 reviews)

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Last Updated on October 13, 2023 by Paul Clayton

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Perhaps you have a travel trailer set up at a permanent site with an allocated power outlet, or maybe you’re current battery is nearing the end of its life, you might have wondered if you really need a battery. You’re not going to be going anywhere with your trailer, so maybe it’s an expense you could do without.

So, do I need a battery for my travel trailer? The answer is no, with a couple of caveats. Most modern power converters will work just fine without a battery present, but, some don’t, so it’s worth testing before you chuck your RV battery.

Additionally, without a battery, you’re not going to have a backup power supply in case of a power cut. It’s worth bearing this fact in mind, your appliances won’t work in a power cut, including your furnace.

If you’re undecided as to whether removing the battery from your travel trailer is a good idea or not, then we’ll weight up your options as well as look at modern battery technology and its reliability.

The 12-volt System

All of the appliances on your RV run on a 12-volt system. If you don’t have another source of power then everything will work with your RVs batteries. RV batteries are what are called deep cycle batteries, they are specifically designed to hold plenty of power over a long period.

The Lifetime of an RV Battery

A well-maintained deep cycle battery can easily last in excess of 5 years.

The time to drain and discharge a battery can be significantly less than the time it takes to charge a battery, so bear this in mind when you’re charging them.

Pro Tip: if you’re not using your travel trailer, then disconnect the ground wire to avoid draining the battery.

What The Heck Is A Battery Anyway?

It’s one of those things that you don’t notice until it no longer works, have you ever left your headlights on and wondered why your car won’t start in the morning?

A battery is at its core a device used to store electrical power. This is an important distinction to make, a battery does not generate power, it’s only a vessel for storing power.

If you find yourself going through RV batteries at a rate of one a year, then there’s something definitely wrong. You should only need to install an RV battery a couple of times each decade, and it only takes a little bit of effort and know-how to maximize your battery’s lifespan.

As a rule of thumb, avoid letting your RV battery from going beneath 50% charge. If they do, make every effort to recharge them as soon as you can. Never let your battery dip beneath 20% charge, doing so can irrevocably damage them and they are unlikely to function at 100% efficiency again. A modern gel battery can last upwards of 7 years.

A fully charged battery will produce 12 volts, while a battery that has begun to discharge will give off less voltage, this can impact the ability of your appliances. A furnace, for example, may not function correctly unless 12 volts are supplied .

You can also use this fact to monitor the health of your battery. If you fully charge your battery and then use a volt meter to test the number of volts being delivered, you can get a good idea if your RV battery is on the decline.

Should I Have An RV Battery Bank?

Despite the name, this has nothing to do with financial institutions or money. A battery bank is a way of adding multiple batteries together, doing so either increases the available voltage or the available amps.

RV Batteries in Series

Creating batteries in series will keep the amps the same, but will multiply the voltage. As a way of an example, if we take two 12v RV batteries and join them together in series, then we’ll have a total of 24 volts available but there will be no change to the amps.

To create a series connection, the negative terminal from one battery is joined to the positive terminal on another battery. Another connection is made from the remaining positive and neutral connections and then connected to whatever we’re trying to power. All batteries in the same series should be rated the same, i.e. the same voltage and amps.

RV Batteries in Parallel

As you might have guessed already, joining batteries in parallel will keep the voltage the same but will increase the amps. For example, adding two 12 volt RV batteries together will still net you 12 volts, but the current (amps) will increase.

A parallel connection is created by connecting the positive terminal to the positive terminal, and the negative terminal to the negative terminal. This bank is then connected to whatever we’re trying to power as normal and both batteries will drain at the same rate.

RV Batteries in Series and Parallel

It’s also possible to create a hybrid bank that has batteries in parallel as well as in series. This configuration requires a minimum of four batteries to carry out and will increase both the volts and amps. It’s a bit tricky to describe, but the illustration below should give you a good idea of how it would work.

Maximizing RV Battery Life Expectancy

If one of the reasons you’re considering doing away with your battery is due to the life expectancy, then consider these simple tips for maximizing the lifespan of your RV Battery.

Most RVs will come with a single 12 volt RV battery, most likely a marine model. Use this until it’s no longer viable and then replace it with a much better deep-cycle battery.

There are a ton of RV Deep Cycle batteries available, coming in varying physical sizes. Understand how much room your RV has for batteries and then get the biggest one possible.

When it comes to replacing the battery, you should first remove the negative terminal and then the positive one. When fitting you’ll want to do this in reverse, affix the positive first and then the negative. While you’re replacing your battery it’s a good time to check for corrosion or wear and tear on the connecting cables.

Regularly check the level of electrolyte in your batteries, as this is one of the most common causes of failure. Batteries can easily be topped up, just make you don’t overfill them.

Correct Storage

RVs are often stored for months at a time with little to no use once the temperatures drop. It’s completely normal for your RV battery to discharge during this idle time, especially if you’re not looking after it.

If you allow your battery to discharge then you’re damaging the life expectancy of the battery. If your RV battery discharges and is then allowed to freeze, serious irrevocable damage will occur.

Some battery types resist freezing better than others, but it’s best to avoid the circumstance in the first place.

If you can, remove your battery from your RV over winter. Give it an overnight charge once every couple of months to keep it in tip-top condition.

If you can’t remove your battery then you should take a few precautions. The first step is to disconnect the battery, this will ensure those seemingly idle appliances such as radios and smoke alarms are not slowly discharging the battery.

Once a month fully charge your RV battery.

Disconnect any unregulated solar panels as these may cause more harm than good.

Make sure the RV is not left plugged into an outlet, it may seem counterintuitive, but this can kill the life expectancy of your RV battery.

Periodically check the voltage given by your battery, if it begins to drop even after a full charge, then you may need to consider replacing it at the start of the next season.

Correct RV Battery Charging

When you’ve connected your RV to a power outlet, the battery will be charging. The RVs converter will take the mains supplied power and convert it into a 12 volt supply that is suitable for charging your battery.

Unfortunately, the standard charger fitted in most RVs is not great. If you have the budget to do so, buy a 3-stage charger, [amazon link=”B0074JVO0A” title=”like this one.” /]

3 stage chargers have many advantages over a standard charger and best of all they can be used for long-term charging without fear of damaging your battery.

With a 3-stage charger, the battery charges in 3 distinct phases. In the first stage, a bulk charge is applied, this will get your RV battery up to around 80% capacity.

In the second stage, a tapering charge is used, this tapers off the charge until the battery is near full.

During the last stage of charging, a very small amount of power is used to top off the battery to 100%. This trickle will continue as long as the battery remains plugged in keeping the battery at 100% without causing damage to the battery.

Final Thoughts

So, there you have it. Yes, you will need a battery for your travel trailer. The battery serves as a power source for various components of your trailer, such as lights, water pump, and other electronic devices.

When you are camping in a remote location, or if you don’t have access to an electrical hookup, the battery provides power to keep these components functioning. It also allows you to run appliances like your fridge, heater, and air conditioner.

Even if you have access to an electrical hookup, it’s a good idea to have a battery as a backup in case of a power outage or if you want to go camping in a location without electricity.

When choosing a battery for your travel trailer, make sure to select one that is compatible with your trailer’s electrical system and has enough capacity to meet your power needs. Consult with a professional or your trailer’s manual for guidance on the best battery for your specific model.

You may not need a battery for your travel trailer, but we think the benefits outweigh the negatives, especially if you care for your battery correctly. Simply investing in a 3-stage charger can significantly increase the lifespan of your RV battery with very little effort, they are well worth the expense.

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Home » Guides » What Size Battery Do I Need For My Travel Trailer

What Size Battery Do I Need For My Travel Trailer

• Last Updated: Apr 19, 2024

When you’re choosing a battery for your travel trailer, it’s important to select the right size. A battery that is too small will not be able to provide enough power, while a battery that is too large will take up unnecessary space and add extra weight.

In this blog post, we’ll discuss the different factors you need to consider when choosing a battery for your travel trailer. We’ll also provide some advice on how to choose the right size battery for your needs. So, if you’re looking for a new battery for your travel trailer, read on!

Battery Size

When choosing a travel trailer, one of the things you’ll need to consider is the size of the battery you’ll need. The three most common battery sizes for travel trailers are group 24, group 27, and group 31. Here’s a quick guide to help you choose the right size battery for your travel trailer:

• Group 24 batteries are the most popular choice for travel trailers. They’re small and lightweight, making them easy to maneuver and store. 
• Group 27 batteries are slightly larger and heavier than group 24 batteries, but they offer more power and capacity. They’re a good choice for larger travel trailers that require more power. 
• Group 31 batteries are the largest size battery available for travel trailers. They offer the most power and capacity, but they’re also the heaviest and most difficult to maneuver. If you have a large travel trailer that requires a lot of power, a group 31 battery is probably your best option.

The first step is to determine the size of your travel trailer’s battery compartment. This will give you a good idea of the physical size of the battery you need. Next, you’ll want to consider what type of electrical devices you’ll be using while camping. If you plan on using electricity for cooking or running air conditioners, then you’ll need a larger battery that can handle those loads.

Think about how often you’ll be using your RV and how long you’ll need the battery to last. If you only camp for short weekends, then a smaller battery may suffice. However, if you plan on extended camping trips or live in your RV full-time, then a larger battery will be necessary to keep everything running smoothly. Choosing the right size battery for your travel trailer is an important decision that will help make your RVing experience more enjoyable. 

With a little research, you can find the perfect battery to keep your travels on track.

Types Of Travel Trailer Batteries

Travel trailers are a great way to explore the outdoors without giving up all the comforts of home. However, they can be difficult to maintain, and one of the most important components is the battery.

There are three main types of batteries used in travel trailers: lead acid, gel cell, and AGM. 

• Lead acid batteries are the most common type used in RV systems. They are reliable and reasonably priced but require frequent maintenance and replacement.
• Gel cell batteries are more expensive than lead acid, but they provide a longer lifespan and require less maintenance. 
• AGM batteries are the most expensive option, but they offer the longest lifespan and require little to no maintenance. 

When choosing a battery for your travel trailer, it is important to consider your budget and your needs. Lead acid batteries may be the most affordable option, but if you don’t want to deal with constant maintenance, gel cell or AGM batteries may be a better choice.

How Many Batteries & What Voltage?

Batteries are essential for any travel trailer. They provide power for lights, appliances, and other electronics. Without batteries, it would be difficult to enjoy a camping trip. But how many batteries do you need for a travel trailer? And what voltage should they be?

The number of batteries you need will depend on the size of your travel trailer and the number of devices you plan to use. A small travel trailer might only require one or two batteries, while a larger one could need four or more. As for voltage, most travel trailers use 12-volt batteries . However, some RVs have 24-volt systems, so you’ll need to check your specific vehicle to see what voltage it uses.

No matter how many batteries you need or what voltage they are, make sure to keep them charged up. A dead battery can ruin a camping trip, so it’s always best to err on the side of caution and bring along extra batteries just in case. With a few fully charged batteries in tow, you’ll be able to enjoy your travels without worry.

With a little bit of research, you can ensure that your travel trailer has the right battery bank to keep everything running smoothly.

How To Charge RV Batteries

There are a few things to take into consideration when charging RV batteries. The first is the type of battery you have. There are lead-acid, lithium-ion, and nickel-based batteries. Each type requires a different charging method, so it’s important to know which kind you have. Once you’ve identified the battery type, you’ll need to determine the right voltage and amperage for the charger. 

This information can be found in the owner’s manual or on the battery itself. Once you’ve selected a charger, you’ll need to connect it to the RV’s battery terminal. It’s important to make sure that the polarity is correct; otherwise, you could damage the battery. Finally, turn on the charger and monitor the progress until the battery is fully charged. Properly charging an RV battery is essential for ensuring that your RV is ready for your next adventure.

Final Thoughts

So, what size battery do you need for your travel trailer? The answer may surprise you. You don’t need a huge battery to power your RV; in fact, a smaller one will do the trick just fine. We hope this article has helped clear up some of the confusion around batteries and given you the information you need to choose the right one for your needs. Thanks for reading!

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Do I Need A Battery For My Travel Trailer?

The question of whether or not you need a battery for travel trailers is one that’s hotly debated within the camping community. Some people claim that a battery isn’t necessary, while others are convinced that you’d be skirting the law without one. Because there’s a lot of misinformation out there, we’ve decided to address this question directly.

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The short answer is no. These days, most trailers are equipped with power converters that are capable of getting the job done on their own, with no battery required. That said, it’s always a good idea to make sure before you embark on that first adventure with your new travel trailer. This is especially true if you’ll be camping without access to a power outlet.

But what about the towing experience itself? Is it safe to tow the trailer if there’s no battery installed? The answer to this question is a definitive yes. Contrary to what some folks would have you believe, the towing vehicle will provide enough power to operate the brake and signal lights on the trailer as long as they’ve been properly attached.

So no, batteries aren’t a vital component of travel trailers. However, they will provide you with a backup power source in case your external hookup fails, which is enough to justify the purchase for most people. They also have a fairly long life when they’re used and stored properly (see How Long An RV Battery Will Last Before Replacements?, below), which helps to offset the cost.

How The 12-Volt System Works

The appliances on a travel trailer run off a 12-volt system. But what exactly does this mean?

The 12-volt DC battery system receives its charge from the 120-volt AC power. When the charge converts to DC power, it can be used to run the lights, heating system, water pump, and all of the onboard appliances.

This is why a battery is essential if the travel trailer doesn’t already come with a reliable power converter. If you’re parked at a campsite and using their power source, the battery will convert the current instead.

Best Battery For A Camper Trailer

If you’ve decided to buy a battery for your travel trailer, you should learn about the different types so that you can choose the one that will best suit your needs. While it can be difficult to differentiate between batteries based on appearance alone, the distinctions are important.

This is the standard battery type for travel trailers. With a winning combination of efficiency and reliability, they’re also favored for boats, golf carts, and motorcycles.

Deep cycle batteries are of the lead acid variety, which means that they’re rechargeable, with a relatively high power-to-weight ratio. They’re capable of delivering continuous power over long periods of time and should run effectively until the battery is 80 percent discharged. Despite this reliable feature, we would recommend recharging when the discharge is at no more than 45 percent. This will help to prolong the overall life of the RV battery.

The flooded version of this lead acid battery is inexpensive, but it requires users to keep a close eye on the electrolyte fluid levels and refill them s needed. The cheaper price also means that the metal is prone to corrosion. Flooded batteries will need to be cleaned and recharged fairly often—they can’t handle a discharge greater than 50 percent.

Sealed (AGM)

With a sealed deep-cycle battery (also known as an Absorbed Glass Mat or AGM battery), the electrolyte fluid is sealed inside, meaning that you won’t have to monitor the levels manually. This quality means that the battery can be placed in all sorts of different configurations without risk of spillage. Sealed batteries are also lighter and charge more quickly than their flooded counterparts, which helps to boost their appeal.

The gel battery is similar to the AGM version, except that it lacks the protective fiberglass coating around the electrolyte fluid. Instead, the electrolyte fluid is thicker and more viscous, like a gel. These require less maintenance than the flooded deep-cycle batteries, but they also charge slowly and are easily damaged.

Lithium-Ion

Travel trailers can also run on lithium-ion batteries that hold their charge effectively and recharge quickly when the power is dispersed. They have a high power capacity as well, making them a particularly attractive option for frequent boondockers. Unlike regular lithium batteries, the lithium-ion versions are rechargeable.

To learn more about the 12-volt system and travel trailer batteries in general, take a look at this informational video.

How Many Batteries Are Needed?

If you plan on doing a great deal of boondocking —that is, camping without access to a power source—then you’re better off investing in at least two 12-volt batteries. Some full-timers choose to carry three or four. While you could probably get by on a single RV battery, we would recommend at least two. That way, you’ll be able to gain more power by using one of the configurations outlined below.

Travel Trailer Batteries In Series

If you’re running two or more batteries, you have the option of creating a series connection between them. To do this, you’ll first need to connect the negative terminal on one battery to the positive terminal on another. Next, you’ll create another connection between the remaining positive and neutral connections. The series is complete when you’ve connected the conjoined batteries with whatever you’re trying to power–the travel trailer, in this case.

Should you choose to create batteries in series, the voltage will multiply while the amps remain the same. For example, if you’re running two 12-volt batteries together in series, you still have 12 volts, but the number of available volts will increase to 24. It’s important to keep all batteries in the series at the same rating—that is, each RV battery should have the same voltage and amps.

Travel Trailer Batteries in Parallel

Conversely, running batteries in parallel increases the amps while keeping the voltage the same. When you join two 12-volt batteries in parallel, you’ll still net 12 volts, but the current will be twice as strong.

To create a parallel connection, join the positive terminals of the two (or more) batteries that you wish to connect. Then connect this bank to the trailer to power the appliances. Running in parallel means that both of the batteries will drain in tandem–when it’s time to recharge one, you’ll need to recharge the other as well.

Travel Trailer Batteries In Both Series And Parallel

Looking to create a bank that has batteries in series and parallel? To pull this off, you’ll need at least four batteries. Simply connect two of the batteries in parallel and two of them in series, as outlined above. As you’ve probably guessed, this configuration will increase both the voltage and the current (or amps).

How Long Will RV Batteries Last Before Replacements?

Some people complain that batteries are a poor investment, as they require replacements every year. These individuals are probably not treating the batteries with the proper care (see Tips on Maximizing Battery Life, below. With the right maintenance and recharging schedule, you can expect your travel trailer’s battery to last at least 5-10 years.

Tips On Maximizing Battery Life

It’s true that travel trailer batteries are pricey, but you can maximize your investment by taking precautions to prolong its lifespan.

Perform routine inspections to make sure the water and electrolyte levels are sufficient. Recharging the batteries as soon as they’ve reached the maximum discharge level will help to boost their efficiency. As we’ve mentioned, it’s best to recharge them when discharge reaches 45 to 50 percent. Whatever you do, don’t let the discharge level dip below the 80 percent mark. This will cause small crystals to develop on the RV battery, which will ultimately lead to its destruction. Using distilled water will help you avoid this calamity as well.

Excessive heat can wreak havoc on your batteries as well, so keep this in mind when traveling to warmer climates. Another pitfall is overcharging–be sure to monitor them closely during the charging process so you can stop as soon as they’re at full charge.

Finally, you might consider purchasing a battery monitor. This will allow you to track overall usage, charge, and voltage, in addition to reminding you how long you have before it’s time to recharge. It’s an especially useful safety net for novices.

Charging Travel Trailer Batteries

The first phase of battery charging is called bulk charging. You’ll use this mode until it’s charged to 90 percent, then switch to absorption charging for the remaining 10 percent. This application is slower and helps to keep the water levels high and reduces the risk of gas buildup. At the very end of the process, you’ll switch to the float stage to bring the battery to full charge.

What To Do With Batteries When RV Is In Storage?

Just as excessive heat can deplete the battery’s overall shelf life, extreme cold can kill flooded cell batteries. For this reason, always remove any batteries from your travel trailer before storing it for the winter . Bear in mind that they’ll still be discharging slightly during the storage period. For this reason, you should check them every month or so to make sure their discharge levels haven’t fallen beneath 80 percent. If they have, recharge them as you normally would.

In Conclusion

In short, there’s much to consider when it comes to installing a battery for travel trailers. While we would recommend two 12-volt batteries for most average-sized campers, the decision is entirely up to you.

Best of luck, and happy camping!

Check out our article on: 9 Easy Tips For Towing A Travel Trailer

Please keep in mind that we may receive commissions when you click our links and make purchases. However, this does not impact our reviews and comparisons. We try our best to keep things fair and balanced, in order to help you make the best choice for you.

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What Runs Off The Battery In Travel Trailer: Ultimate Guide

Ever wonder what runs on a battery in a travel trailer? Well, most of the safety features and conveniences you enjoy in your travel trailer run by the battery. 

Even when connected to shore power, you will need a 12 volt battery to operate most appliances and features in your RV. 

Basic features such as lights, smoke detectors, and even your furnace are all run by the battery. Without your battery, you could be left in the dark, cold, and with reduced safety features.

When thinking about it, it makes sense to have the critical systems function on a battery. Especially when you use your travel trailer for boondocking. It wouldn’t be too peaceful if you always had to be connected to a generator just to use your lights or get some water out of the faucet. 

Also, DC power from your camper battery allows for smaller wires and smaller motors. This is a great feature for manufacturers as it allows less weight, less space to hide motors, and easier wiring practices.

Table of Contents

Deep cycle battery, gel batteries, interior lights, exterior lights, leveling jack, power stabilizers, exhaust fans, rv refrigerator, smoke detector, carbon monoxide detectors, back-up camera, control panel.

•  Final Thoughts

This post will review all the components and appliances that run off your travel trailer battery. Whether you have regular lead acid battery, AGM battery, or lithium battery, the post below applies as they are all 12V systems used in your RV. Below we will first review the two most common RV battery types.

The battery in your travel trailer is a deep cycle battery.  These are what we consider flooded batteries.  They are an acid battery that are flooded with acid and will have several lead plates.  They are also put together in cells or a battery bank.  There are 8 cells in each battery at 1.5V.  Times that by 8, you get the 12 volt battery power. 

Recently, gel batteries or AGM batteries have made their way into the RV world.  These batteries are similar in the 12 volt power they provide.  But they are better in that they take the bouncing of trailer better than an acid battery and they also have a longer battery life.   

What Runs Off the Battery in a Travel Trailer

Below are 16 components and appliances that depend on your battery to provide power. These are found in most modern travel trailers.

Your water pump is just a motor that spins and creates water pressure. This water pressure is what you need to get your water flowing when you get water from your tank (when not hooked up to city water).

You may also notice that sometimes your water pump runs intermittently or is not turning off very quickly. This usually means you have air in the line, and the pump is not getting the set pressure to turn off.

When you notice this unneeded running of the water pump, ensure all the air is out of the lines by turning on all the faucets. Otherwise, you can run your house battery down fairly quickly as your water pump does use some amps and will drain your battery quickly. Not to mention it add heat and stress to your pump and can reduce its life of the pump.

All of your interior lights operate on 12V DC power. Regardless if you have incandescent or new LED bulbs, they all run on 12v. 

One thing to watch out for is low battery voltage. When you don’t have enough voltage from your battery, you could have some weird things happen. Incandescent bulbs usually will get dim, while LED bulbs may flicker. For more information, see my post on why RV lights are flickering.

Besides your interior lights, all of your exterior lights are 12V battery power. This is not only the lights you turn on to illuminate the night, but also all of your safety lights, including your brake lights and running lights.

Even when connected to your tow vehicle, you are operating all of these safety features through your travel trailer or tow vehicle battery.

Your slide-out also only operates on battery power. This is a great feature, because if you are like most RVgoers, you usually set up your travel trailer, get the slides out and then connect to shore power.

If this motor relied on AC power alone, you would need to set up and connect to shore power or get the generator running just to set up camp. This is especially handy when boondocking as there is no electricity anyways, yet you can set up camp without finding an ac power source.

For more info on slides and battery power they use, visit my post on how many watts an RV slide uses.

Your awning also runs on your RV battery. The small dc powered motor and smaller wires allow the motor to be tucked away within the awning framing. This gives the awning a nice, low-profile look. If the awning used an ac powered motor, the motor would be bigger and the wires would be larger and need more waterproofing. This would get away from the nice slim appearance of awnings.

There are two kinds of leveling jacks, manual and battery-powered. 

Manual leveling jacks are nice for smaller campers as they are simple and dependable. They are gears, and you are the battery by cranking it up or down. Not much to go wrong unless you hurt your arm and can’t crank.

Battery-powered leveling jacks are even better. I must admit, I used to have a manual jack and got by for a while. But once I went to a power jack, it was a game changer. Especially when trying to hitch up and get your sway bar system connected.

Nothing like the sounds at a campground on a Sunday morning when all the travel trailers are using their power jacks. It’s the all-familiar sound of packing up and getting ready to hit the open road again.

Another game changer on newer travel trailers is power stabilizers. It was a great added feature not to need to get down on my knees with a power drill and a 3/4” socket to get my stabilizers set.

The new power stabilizers also run on battery power. And that is a good thing for the quick set-up while boondocking. It would not be a good time to start the generator to stabilize the camper.

Let’s get back in the camper now and look at some more of the interior appliance that runs on 12V battery power. If you have a kitchen, you likely have a hood fan. 

A hood fan is great for eliminating all that smoke while cooking. It is also great at getting that excess moisture out of your camper. Especially in such a tight space, a small meal can add a lot of moisture and smoke, which is something you need to get out of your travel trailer as soon as possible.

You also have exhaust fans for your bathroom and shower. This small motor can easily be hidden within the fan itself. 

If that exhaust fan were ac power powered, it would be a larger motor with larger wires. It would look more like your exhaust fan in a house bathroom, which are much bigger, heavier, and require more wiring.

Did you know that your furnace needs battery power to run? Although your furnace uses propane as a fuel source, it uses the battery as a power source.

Propane makes the heat, and the battery operates the blower motor that pushes that warm air throughout your travel trailer. 

For information on this, visit my post on can I run my RV furnace on 110.

Many new travel trailers come with USB ports. These great power features can power up your phones and tablets.

These USB ports also run on battery power. Your phone and tablet are low-voltage appliances that are battery-powered as well. Having the USB as battery power makes sense, in my opinion. 

There are two kinds of RV fridges, those that run on electricity only and ones that run on battery and propane.

It’s true; some fridges run on propane, and many travel trailers come with them standard. 

This is a great feature when boondocking, as you can keep your fridge running without using a generator constantly running and ticking off the neighbors.

This reminds me of friends who came camping with us in their new camper. We went to a nice place in the National Forest, but there was no electricity. Once we set up, my buddy came to my site and asked how I plugged in my fridge. I told him I didn’t need to; mine runs on battery and propane. 

He then looked at his fridge and realized his was electricity only. We had to run a generator for most of the day to keep his fridge cold. Needless to say, our camping neighbors were not happy. If you plan on boondocking, I highly suggest you consider a battery and propane-powered fridge.

Just like a home, smoke detectors work off of a battery. Instead of the 9V rectangular disposable battery like a house detector, your RV detector is hard-wired to the 12V battery in your camper.

This is the same for carbon monoxide detectors, which also run on your RV battery. 

Have you ever had a low RV battery and heard a beeping? Just like a house battery, when these detectors are low in voltage, they will beep to get your attention.  

Your RV radio and sound system run on a 12v battery. These radios are similar to car or truck radios as they run off the battery power system. 

You could even replace your RV radio with a car radio if you wanted to. The speakers and power supply would all work just fine. You may need separate harnesses and wiring connectors, but a car’s overall power is the same. 

Many new travel trailers come pre-wired, where you can add a backup camera. This is that oval-looking black box at the top back of your travel trailer. That plastic oval is an empty box in most cases and has wires should you buy the camera system.

Should you choose to use the backup camera, the wires provided for easy hook-up are powered by your battery.

The battery operates the control panel with all the light-up switches that manage your water pump, slides, and lights. The light within those switches is 12v power switches. Without your battery, those switches would not light.

Ever look into your breaker box and see both circuit breakers and fuses? A tip to know is that the breakers are all for your 120V ac power appliances. That is for things such as your air conditioner or outlets. These are usually grouped together, one after another.

On the other hand, you will see a group of fuses. These fuses are for all of your battery-supplied appliances. If there ever is an issue with your 12V system and you suspect it is a fuse, go to this area and check out which fuse may need to be replaced. They are usually labeled and easy to track down depending on what is not working. For more info on RV fuses, visit my post on converter fuses .

Here is a tip. Breakers (ac power) can be tripped and put back into the “on” position to regain power. When a 12v fuse is blown, it must be replaced to work again. It is always a good idea to have extra fuses with you in your RV in case this happens. Remember, these fuses have different amp ratings, and it is important to match and replace them with the same.

For more great info on RV batteries and voltage, visit my post on the difference between 6V and 12V RV batteries.

Final Thoughts

The battery is very important to the overall function of your travel trailer. Most travel trailer creature comforts and safety systems are run by the battery. Your battery powers appliances such as your furnace and lights. And without that power, you could be left in the dark and cold.

Tony is an avid camper and RV traveler. He fell in love with camping on his first RV trip with his wife over 25 years ago. Tony loves sharing lessons learned and tips about RV maintenance and safe traveling.

RV Battery Guide: Choosing the Right Travel Trailer Battery

Travel trailers are not self-propelled.

They follow you “trailing” a truck.

Therefore, they are battery-free.

They include crucial electrical parts that keep you and other drivers safe.

electronic wheel brakes, specifically.

If you wish to follow the law, they must be in working order.

For this reason, a travel trailer battery is required to power them.

Don’t neglect other necessities, however, including your water pump, appliances, and lighting.

Without the essentials, camping is less pleasant.

Consequently, you should have a travel trailer battery with you.

However, you may be asking yourself, “What sort of travel trailer batteries do I need?” What voltage and how many? In this short article on choosing a travel trailer battery, we address these concerns as well as others.

What Kind of Battery Do I Need for a Travel Trailer?

You need a deep cycle battery to power the electrical components in your travel trailer.

It is the same kind of battery that you would use in an RV as a house battery.

Long-lasting continuous power is provided by deep cycle batteries.

This is distinct from a starting battery in a car, which offers a significant energy surge for a short while.

Types of Batteries for Travel Trailers

You just purchased a brand-new, sparkling travel trailer.

Or maybe you’re prepared to change the battery in your dependable old trailer.

You may have observed that there are several deep cycle battery kinds available for usage.

It shouldn’t be difficult to choose a travel trailer battery, but it’s simple to become mired down in the specifics.

Here are the essentials.

The four primary categories of travel trailer batteries are as follows:

• Acidic lead

Lead acid is the least expensive choice out of these four.

However, it also has the shortest lifetime.

In order to guard against sulfation and leakage damage, these batteries need maintenance.

They cannot be emptied beyond 50% capacity and are as hefty and bulky as a pile of bricks.

AGM travel trailer batteries may be depleted up to 80% and need less maintenance than lead acid batteries.

However, they have a serious drawback—they often overpay.

Gel batteries are an improvement over lead acid batteries since they are sealed to stop leakage.

They charge relatively slowly yet perform effectively in high temperatures.

There’s not much room in your vacation trailer.

The smallest and lightest kind of travel trailer battery is lithium.

But it does not imply that they are any less effective.

They have greater stability, effectiveness, and safety thanks to the lithium iron phosphate chemistry.

This battery type lasts the longest and charges the quickest.

What Voltage and How Many Batteries?

It’s time to decide precisely how your battery bank will appear after you’ve decided which travel trailer battery you’ll employ.

The required voltage is 12V, but the required amp hours depend on how many components and how long you need to power them.

There are typically two options for travel trailers.

• Two to six 6-volt batteries
• One or two 12-volt batteries

These batteries’ amp hours (Ah) range from 50 to 400.

You’ll probably need 12V 100Ah or 12V 125Ah batteries for pull-behind campers.

In order to get 12 volts, you may connect a sequence of 6 volt batteries together.

You may connect 12 volt batteries in parallel to increase the amperage.

Accessories For Travel Trailer Batteries

A battery bank for a travel trailer is an investment.

So let’s discuss safeguarding that investment! There will always be some bumps when towing your pop-up or trailer, sometimes jolting everything around.

Therefore, you must ensure that your batteries are somehow “bound”!

A travel trailer tray might be useful in this situation.

Battery trays or boxes for travel trailers are made to resist, well, traveling! To prevent your batteries from rolling about and harming both them and other items in your trailer, you may bolt them down.

A charger is yet another useful battery accessory.

Your battery will charge as quickly as possible if you use a charger designed for your particular battery type.

Additionally, it guarantees that you get a full charge and guards against harm.

What could be superior than a reliable battery charger? intelligent battery charger.

The best method to maximize the performance of lithium travel trailer batteries is to use a smart lithium charger.

Your batteries are safeguarded from both undercharging and overcharging by smart chargers.

Once the battery is completely charged, they cease charging, allowing you to “set it and forget it.”

Do you have many travel trailer batteries? Do you often feel rushed? By charging up to four batteries at once, a bank charger helps you save time.

Does my travel trailer need a deep cycle battery?

For your travel trailer, which can only be powered by deep-cycle batteries, you must have one.

How long does a travel trailer’s battery last?

For the ordinary battery bank with the customary quantity of energy usage, it typically lasts two to three days.

However, you may survive for up to a week or more if you have a bigger battery bank or are extremely frugal with your energy use.

My RV battery will my truck charge it?

Trucks often do charge the travel trailer batteries while on the road.

However, the charge they provide is insufficient to recharge a dead battery.

(At the beginning, the vehicle offers a high charge rate.

However, once the truck’s battery achieves its ideal charge, the charging rate decreases.)

This implies that it won’t fully charge your travel trailer batteries; it will only do so in part.

You may purchase a charger to address that issue.

I need how many batteries for my RV.

It relies on a variety of factors. such as what you precisely need to power, for instance.

How much energy you’ll use, the length of your journeys, etc.

For your DC system, you’ll likely need five or so batteries.

Depending on your particular demands, there can be a little bit more or less.

Additionally, a more compact system is required to power your car or start the engine.

How long will a furnace operate on my RV battery?

You should be able to operate it for far over 12 hours as long as you aren’t using any more energy.

The condition of your batteries, whether they are lithium or not (lithium batteries last significantly longer), and other factors may all have a role.

Battery For RV Trailer Videos Suggestions From Youtube

Published on September 24, 2022

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Can You Plug in RV without Battery : 3 Factors to Consider

Last Updated on April 20, 2023

Camping in an RV can be a great way to explore the outdoors without giving up all the comforts of home. If you’re not careful, it can also drain your battery rapidly.

The question therefore is, can you plug in an RV without a battery? Based on the converter you have, you might be able to connect the RV without the use of batteries. 

If you have a “smart” converter, then you can usually plug it into an outlet without harming your battery. If you have an older “dumb” converter, then you could damage your battery by doing so.

In this post, we’ll take a look at the different types of converters, how they work, and what you need to know before plugging in your RV.

Table of Contents

How to Plug in an RV Without a Battery Using a Converter ; 3 Factors

If your RV doesn’t have a battery, you can still use a converter to power your RV, you will just need to install one. Here’s what you need to know about installing and using a converter in an RV without a battery:

Choosing the Right Converter

Selecting the appropriate converter is important when plugging in an RV without batteries. The converter helps to regulate the flow of electricity from the shore power supply to the RV, and it also helps to protect the RV’s electrical system from damage. 

A few factors to consider when choosing a converter, including the size of the RV, the type of electrical system, and the available shore power supply. With a little research, it is easy to find a converter that will work well for your needs. 

For example, if you have a 30-amp RV with a 12-volt electrical system, you will need a 30-amp converter. If you have a 50-amp RV with a 110V system, you need a 50-amp converter. Once you have chosen the right converter, be sure to follow all instructions carefully to ensure safe and proper operation.

Find a Suitable Spot

You need a convenient place to plug in your RV when you’re using a converter. The first thing you’ll want to do is make sure that the area around the RV is free of debris. This includes making sure there are no branches or other objects that could fall and damage the RV.

Once you’ve found a spot that’s clear, the next step is to determine where the power source is. If you’re plugged into an outlet, you’ll need to ensure that it’s properly grounded. If you’re using a generator, you’ll want to be sure it’s placed in a well-ventilated area.

Next, connect the power source to the RV. If you’re using an extension cord, ensure it is properly rated for the power needs of the RV. Once everything is connected, you should test the system by turning on a few lights and appliances. If everything seems to be working properly, you can then enjoy your RV without having to worry about running out of battery power.

Installing the Converter

While many converters come with detailed instructions, some campers find the process of installing a converter to be somewhat confusing. With a few simple steps, anyone can install a converter while hooking up an RV without a battery.

First, locate the DC input on your RV’s electrical panel. This is usually clearly marked. Next, connect the positive and negative leads from the converter to the corresponding terminals on the DC input. Finally, plug the converter into a 120V AC outlet and you’re ready to go.

Installing a converter may seem like a tough task, but with a little know-how, it’s actually quite simple. And once you’ve done it, you’ll be able to enjoy home comforts while camping without worrying about your RV’s battery.

Things to remember: Troubleshooting Tips

When you are plugging in your RV without a battery, many things can go wrong. The most common problem is that the converter will trip the circuit breaker. There are a number of things, including loose wiring, incorrect wiring, or a faulty converter. 

If this happens, the first thing you should do is check the wiring. Make sure all of the connections are tight and secure. If everything looks good, then reset the circuit breaker and try again. If the problem persists, you may need a new converter.

Another common issue is that the RV will not charge the batteries. This can be caused by several factors, including a low voltage drop, an incorrect setting on the converter, or a faulty RV battery charger . 

If you are having this problem, first check the voltage drop across the RV’s power cord. If it is low, then increase it by moving the switch on the converter to the “high” position. If this does not solve the problem, then check the settings on the battery charger and make sure they are correct.

Finally, if all else fails, then you may need to replace the charger. These are just a few of the most common problems that can occur with an RV without a battery. With a little troubleshooting, they are all easily resolved.

What Does an RV Converter Do

An RV converter is a device that is used to convert the AC power in your RV to DC power. This is necessary because the majority of RV appliances and electronics run on DC power. The converter takes the AC power from your shoreline or generator and converts it to DC power. This allows you to use your RV equipment and devices while you are away from an AC source.

Without a converter, you would not be able to use most of your RV’s features while dry camping or boondocking. Many RVs come equipped with a converter, but if yours does not, you can easily install one yourself. Converters come in different sizes, so be sure to get one that is powerful enough to meet your needs.

Types of RV Converters and How They Work

When shopping for an RV, it is important to understand the different RV converters available and their functions. So let’s look at three RV converter types and see how they differ.

Shore Power Converter

The most basic type of converter is the shore power converter, which allows the RV to be plugged into a standard 120-volt outlet . This type of converter is typically used for short-term camping, as it does not have enough power to run an RV’s appliances. Shore power converters allow you to plug your RV into standard household outlets, providing you with a reliable source of power.

There are a few things you should keep in mind when using a shore power converter. First, make sure that the outlet you are using is properly grounded.

Second, always unplug shore power before disconnecting it from the outlet. Finally, be sure to read the instructions carefully before use. You can ensure that your shore power converter will provide years of trouble-free service by following these simple tips.

Generator-Powered Converter

A more powerful option is the generator-powered converter, which uses a generator to create electricity. These converters are ideal for longer camping trips, as they can provide enough power to run all of the RV’s appliances.

Generator-powered converters are especially useful for RVs that do not have hookups to a campground or other source of power. Not only do they provide a convenient way to keep the lights on, but they can also help to save money by eliminating the need for expensive battery packs.

These are available in a variety of sizes and designs, making it easy to find one that meets the needs of any RV. With a little research, you can find the perfect converter for your next road trip.

Solar-Powered Converter

RV solar panels are a great way to generate electricity while on the road. They are relatively easy to install and can be used to power a wide variety of devices, from lights and appliances to televisions and computers. Best of all, they are environmentally friendly, generating clean, renewable energy that doesn’t produce any emissions.

There are several things to keep in mind when shopping for RV solar panels. First, consider the size of your RV and the amount of power you need to generate.

Consider the climate where you’ll be traveling. If you’re going to be in sunny regions most of the time, you’ll want to invest in more panels than if you’re just going to be using them occasionally.

What Happens When the RV Converter Goes Bad?

Without a converter, an RV would be unusable. So, what if the converter goes bad? There are a few things that can happen to the converter.

• The RV’s battery will not be charged. This means that the lights will eventually go out, and the appliances will not work. Second, the 12-volt DC devices will not work. This includes the water pump, furnace, and any other 12-volt devices. If the converter is not working properly, it could overheat and cause a fire.
• If you suspect that your RV converter is going bad, it is important to have it checked out by a qualified technician. They will be able to diagnose the problem and make any necessary repairs. In some cases, it may be necessary to replace the entire converter. This is usually only necessary if the converter is significantly damaged or if it has stopped working altogether.

Listed below are some answers to some commonly asked questions related to the post:

Is an RV Battery Necessary?

RV batteries are necessary if you want to be able to use electrical appliances while your RV is not hooked up to shore power. Many people believe that they can get by without a battery, but this is simply not the case. Even if you are not planning on using any sort of electrical equipment, a battery is still necessary in order to start your RV’s engine.

Batteries are typically lead-acid batteries, which means that they need to be regularly maintained in order to prevent sulfation. If you do not have a battery, you will likely find yourself stranded at some point during your travels.

Can I Tow my Travel Trailer without a Battery?

Towing a trailer in the absence of a battery is illegal in almost every state. The battery is required to power the camper’s brake system if the camper becomes disconnected from the tow vehicle. Without a battery, the brakes could fail, causing the camper to become uncontrollable and pose a serious safety hazard.

The battery is needed to operate the trailer’s lights. Towing a trailer without lights is also illegal in most states. Not only is it unsafe, but it can also result in a traffic citation. If you’re planning on towing your travel trailer, be sure to bring along a fully-charged battery.

Can I Start my RV While Plugged into Shore Power?

Yes, If your RV is equipped with a generator, you can use it to provide electricity while traveling or camping. Most generators will automatically shut off when they sense that shore power is present. Some models may require you to manually switch the generator off when plugged in.

Consult your owner’s manual for specific instructions. Running a generator while connected to shore power is a great way to top off your battery or to keep your RV cool on hot days. Just be sure to follow all safety guidelines to avoid damaging your RV or causing an accident.

Will the RV Fridge Work Without a Battery?

RV refrigerators are not like conventional ones that you would find in a home. They are designed to run off either 120V AC power or 12V DC power, which is provided by the RV’s battery. Without the battery, the RV fridge will not be able to run.

The battery is used to power the front thermostat and control panel, as well as the front LEDs and any other added features. If you are planning on being without power for an extended period of time, it is best to invest in a portable generator or solar panel to keep your RV fridge running .

Now you get full explanation, if you can plug in RV without battery or not. It is technically possible to operate an RV without a battery, it is not advisable. RVs rely on batteries to power many of their essential systems, including the lights, ignite the stove, and power the water pump. 

Without a battery, these systems will not work. Batteries help to regulate voltage levels and prevent damage to sensitive electronics. For these reasons, it is always best to have a fully charged battery on hand when operating an RV.

If for some reason you find yourself without a battery, you can follow the tips outlined in our article. It will provide power to the RV’s essential systems until the battery can be replaced. We hope you found this article helpful. If you have any further questions, please feel free to reach out to us.

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RV & CAMPERVAN POWER: 4 WAYS TO POWER-UP WITHOUT BEING PLUGGED IN

Solitude check. beautiful views check. but does your cell phone have a charge maybe not., i recently had a viewer comment that nomads don’t “need” power. they might want it…but they don’t need it. i agree in theory. if your goal is to completely check-out and unplug, sure, you can get by with a fire and a bottle of water. but for most travelers, whether they are working digital nomads or simply trying to enjoy retirement, most have some power needs. but, how do you get that power without being plugged in, today i’ll share four ways to keep you powered-up when you’re untethered and in the wild..

I haven’t met a Nomad yet who didn’t need some power.

For some, minimal power is needed to keep a cell phone, laptop or tablet powered. Others may need enough power to operate a C-PAP, refrigerator, or TV. The good news is, no matter your camping, style and hobbies, almost every conceivable gadget and device can be powered off-grid and boondocking .

How do you make sure you have all the power you need without being confined to a campground or RV park? Here are 4 strategies to help you enjoy the serenity of boondocking or dry camping that get the job done.

Charge with the Vehicle’s Battery

Whether you are traveling in a van, RV or trailer, you can pull power from your engine. There are three ways to draw power from your vehicle:

+Plug a 12v inverter into your cigarette lighter and charge your devices while your vehicle is running. Most of these devices, like the Bestek 500 W Power Inverter have several ports to charge both 110 AC devices (like your laptop) or USB powered devices (like your phone).

+Connect an inverter directly to your vehicle battery with cables, like the Yinleader Car Power Inverter 1000W/2000W(Peak) . This is a great device when you need hefty power in a pinch. The only caveat is that you usually need to keep your engine running so your battery doesn’t die.

+Install a continuous-duty solenoid in your vehicle to draw the extra power your alternator creates when you drive to charge a house battery. The beauty of a solenoid is that it automatically charges your house batteries (the coach batteries inside your motorhome or freestanding battery inside your van) while you drive.  You can install one yourself, if you’re handy. If not, a RV or mechanic can help you out.

I’m a big fan of portable Power Stations for charging all kinds of devices while boondocking. They are easy-to-use, self-contained, rechargeable batteries with an inverter and charge controller together in one unit. This means they can function just like a wall outlet, or charge a variety of other devices, usually with USB and DC ports.

Portable power stations come in a variety of sizes and functions. I have a video comparing four I’ve personally used and reviewed here , along with a  spreadsheet on the comparisons so you can see all of the differences between them.

Simply charge your power station while you drive, with a solar panel or by plugging into a wall outlet. Depending on size, they take different times to charge, and the power will last different lengths of time, depending on the items you charge. The internal battery can also vary among brands from lithium-ion to lead acid AGM. Lithium-ion is considered the best and will come with a higher price tag.

Power Stations can easily be used to provide a steady supply of power without being plugged-in, especially if you have a plan to keep them charged. I’ll share how I do that, down below!

Charge with Solar

Installing a solar system on your RV requires four main components:

+solar panels

+a charge controller to manage the incoming voltage from the panel

+an inverter to convert amps to watts so you can charge items

+and, a battery to store the power you collect.

How many panels and batteries you will need depends on what you need to power. I know Nomads that do just fine with one 100-watt panel and one 100-amp hour battery to charge laptops, phones and maybe a car vacuum.

I also know Nomads that have 1000 watts of panels on the roof of their motorhome with six 100-amp hour lithium batteries in their battery bank (that’s a whole lotta power!).

How much you might need depends on your individual camping style. If you need a guide to help you add up how much power you need, check out this Power Station Comparisons that illustrates the average energy draw of common appliances. If you’re still confused, sit down with a solar expert, go through your power needs and map out your own system.

Personally, I have 480 watts of solar with two 100-watt batteries and a 1000-watt inverter. This set-up powers multiple devices, thanks to the combination of my solar and my portable power station. I use the solar to keep my house batteries and power station charged. The solar powers me during the day, and the power stations power me at night.

Mounted Panels vs Solar Suitcase

If you only need a small amount of solar, like 100-watts, a Solar Suitcase might be a good option to consider. The benefit of the suitcase or an unmounted panel is that you can position the panel toward the sun as it moves across the sky, giving you the most effective charge. The downside is that it must be stored in a small space, packed and unpacked and moved periodically to be effective.

If you want a heftier solar set-up, Mounted Panels are a necessity. Multiple panels can be mounted on the roof of your rig, with real estate and cost being the only limiting factors. If you have the space and the budget, the sky’s the limit on how much power you can pull, automatically, from the sun. Mounted Panels need to be properly installed to charge your house or coach batteries, but once that’s done its no-muss-no-fuss and power will flow to your rig just like into a house…assuming the sun is full. The downside of mounting solar panels is that you need to park your vehicle in the sun if you want to get a solid charge, which can make your rig warmer in the summer months. In the winter when the sun is at a different angle, it can take longer to charge your batteries, unless you have them mounted on a system that tilts to maximize the sun exposure.

A generator is another way to create power. There are two types: Portable and On-board.

Portable generators convert fuel to electricity. They come in various sizes depending on what wattage amount you need to run and charge your stuff. Some are hefty in size and weight and usually come with wheels to be moved around. Portable generators should only be used outdoors with good ventilation. Therefore, portable generators do require some work to move and set-up to be operated safely.

Most RVs have built-in, onboard generators. The fuel source for an onboard generator is the engine fuel or propane tank. This type of generator is great to easily charge your coach batteries. Even nomads who have solar sometimes to need to supplement their battery charge on cloudy days. They are also great to power appliances that are too power-hungry for your inverter to handle, like perhaps a blowdryer, blender or InstantPot .

There are some nomads who use a generator to power their batteries, without the use of solar or a campground hook-up. The glaring downside of this, is that most people don’t like to listen to or smell a generator running all day. Your neighbors won’t be happy campers. Most RV parks and campgrounds have quiet hours between 10 pm and 7 am when you cannot run a generator. Still, it is a workhorse for power and most nomads in motorhomes consider it to be an essential form of power (at least as a backup to other power sources).

Creating off-grid power is only the first step when you want to disperse camp, boondock, or dry camp. The second is to MAXIMIZING YOUR POWER…Here’s How:

Remember to Always Be Charging!

Never waste an opportunity to charge smart. Take advantage of your driving time to power your house battery and electronic items by using a solenoid to power your house battery and plugging everything into a power station that’s charging as you drive. If you travel like most Nomads, you’ll drive at least 3 hours between campsites. Use this time wisely to power as many electrical items as you can.

Use Electronics that are Rechargeable

So many of the electronic items we use are now available in USB form. From curling irons to bug-zappers you can find rechargeable versions of your favorite items. I have several options in my Amazon store that I’ve found. Just add “rechargeable” in front of anything you are Googling to see if it exists.

Use Solar Lights Inside at Night

Instead of drawing power from your house batteries to light your rig, use solar lights that you can charge during the day. Then you have extra power to run anything else you need when the sun goes down.

My video “ The ABCs of Nomad Power: Strategies for Banking Power on the Road ,” walks you through all the examples above.

You don’t have to live like a caveman when you travel the backroads. Just be smart about what you have and how you use it!

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13 thoughts on “ RV & CAMPERVAN POWER: 4 WAYS TO POWER-UP WITHOUT BEING PLUGGED IN ”

I have been following you for some time . My husband and I survived hurricane Michael when it hit Mexico Beach October 2018. We repaired our house, sold it, bought class B and quit our jobs. We have lived in our rig for the past 3 months. We just finished our first work camping job in Mennisota and now are headed to Florida to sell Christmas trees. I never knew this was an option. I was taught to work hard, save as much as you can so that when you get old you can retire. We are really enjoying life. I very much enjoy all the research you do and information you share. Very helpful. Thank you

Robin, I belong to “Boondockers Welcome”…. I bought a 3 year membership for $75….. I live in Delaware and there aren’t very many host members around here… I think there are about 5 host members within a 2-3 hour drive… I’ve stayed at all 5 boondocking places… I got my RV (26 feet) in April 2019…. I’ve stayed with these hosts during my “learning the rig ” phase… Since I don’t know anyone who has an RV, these hosts were excellent, friendly “teachers”! I still call a Couple of them when I’m in need of an answer ! (If I can’t find it on your blog!) Not ready to quit my job and sell the sticks and bricks, just yet….BUT…. At 72…. I need to get a move on it! Lol! Kathy Opatka

Hi Robin, thank you for being my guru! I recommend you to everyone who asks how I learned so much. My additional 2 cents re solar: I needed help from a pro for this, but my solar setup has two backups for cloudy days. The house batteries charge off the vehicle’s engine while driving and I can connect to shore power. My van is 100% solar – no propane or generator – and I can run a microwave, induction cooktop, hairdryer, toaster, two fridges, 12v air conditioner, etc. Just not all at once, lol. (I have 420W of rooftop solar panels, a 3600 watt inverter and 3 lithium iron phosphate batteries.) I mostly boondock and haven’t yet used the shore power plug. On cloudy days J just run a few errands or idle the engine for 20 min.

Judy, I am looking to do that. How much did it cost you? I do not want to rely on my generator. Also where did you get it done at.

Thanks, Robyn

Hi Robyn, My solar was done by Wes Watts, owner of Tiny Watts Solar in Santa Cruz, CA. It was the first thing I had done to my van, and I have no complaints, but since then, I’ve learned a lot and an experienced builder could do what you need for a tiny fraction of my cost.

My solar is a super high end system that cost nearly $14k, including the solar panels, all equipment and installation.

The person who built out the rest of my van could advise you and possibly coach you to do it yourself, if you’re fearless. He will do hourly consults. I don’t know his hourly rate since he did my entire build, but he has a lot of integrity. His name is Marc Vroman, Nomadik Customs in Portland OR. 208-946-1288. [email protected] . I know he’s swamped until about Thanksgiving, fixing a DIY van that’s full of black mold due to bad insulation, and he’s sticking to the original deadline despite that huge discovery.

“I know he’s swamped until about Thanksgiving, fixing a DIY van that’s full of black mold due to bad insulation, and he’s sticking to the original deadline despite that huge discovery.”

Oh YUCK. I haven’t insulated my cargo van, and the possibility of mold is one reason why.

The other reason is rust.

Re mold and rust, yes! I happened to stop by his shop when he was pulling out the moldy insulation. Scary and gross! And caused by condensation buildup, not a leak. It wasnt old, either. Yikes.

SUCH good information, and I always love your comparisons and personal prefs!

I love your 1-4 numeral graphics in this blog. Very unique! Oh yes, your content is good, too. ?

Regarding Boondockers welcome:

I travel in a self-converted cargo van. I have no freshwater, gray water, or blackwater tanks. On the BW website, it says that my van would not qualify me for membership. Yet I have heard from a couple of other DIY van travelers who also don’t use tanks that they are members and this is something that can be negotiated between host and boondocks. Can you comment on this?

Thanks, I enjoy your videos very much!

Robin, I have been following your videos for some time now and living my dream through them. I also have your book and it is a world of help. I’m looking to downsize from a 32′ Class C to a more manageable 24 – 26 foot Class C. I hope to be on the road in 2020. I’m 78, in relatively good health and have dreamed of this for some time. My sons think I’ve lost my mind! Boondocking might not be the thing for me, but I do want to try. I have learned so much from your videos and wanted to thank you for sharing your life and knowledge. Hope to see you on the road sometime!

PlLove, love, love your info! 73 & just starting full time RVing in a Class C with 1 cat?. I can’t locate the tire pressure system you talked about…. please help! Glenda

Hi Glenda. The best way to find the items talked about here and in the videos is to go to amazon.com/shop/creativityrv and look in the “As Recently Seen on YouTube” folder of items. Hope that helps.

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Will My Slide Out Work Without Battery?

Updated on April 16, 2023

Editorial Staff

Reviewed by

Bryan Rainey

The introduction of the slide out feature has truly revolutionized RVs and Motorhomes. The feasibility provided by slide out furniture and living arrangements can make any RV look grand and better. 

What’s more, RV slide outs have also allowed RV owners to truly enjoy the minimalist lifestyle. You can save space inside your vehicle and incorporate key additions. 

However, just as is the case with most new forms of technology, slide outs can be prone to misalignment, leaks, motor failure, and more. The motor and battery behind the gear function can develop problems over time. A system overview of the slides out on your RV can help you save time and effort. 

In this article, we look at whether your slide out RV mechanism will work without a battery or not. We also answer some other questions about the slide out battery and how it works. 

Will an RV Slide Out Work Without Battery? 

Whether your RV slide out works without a battery depends on the kind of slide out. Some rack and pinion or hydraulic slide outs will work without a battery, while motor-operated slide outs won’t work without a battery.

That being said, you can still get get your slide out on your RV to work with the following three simple techniques:

• First, you can plug the camper into a shore power system and operate your slide out from the power generated through the shore power.
• Secondly, you can use a generator to move your slide out in the way you want. The generator will help provide relevant water and give the power required for efficient operations. 
• Additionally, if all other techniques fail, you can turn on your generator and operate your slide out through the power generated from your truck. The slide out will work efficiently, even if it is powered by your truck. 

Some slide out campers come with a manual mechanism, which works just as fine. The manual operation will ensure that you have a fully functional slide out in your RV, even if the battery is dead. In short, you will never be stuck with a dead battery or a dead slide out. 

How Does a Slide Out On an RV Work?

RV slide outs work on the back of several components, including gears, motors, tracks and other hydraulics. The slide outs can be extended and retracted back to your motorhome’s walls, giving you additional space inside the room. 

As a frequent RV traveler, it is necessary that you know the intricate details involved in the process and how exactly your slide out works. The type of slide out mechanism you have is dependent on the age and type of motorhome you own. 

Different Types of Slide Outs

Here’s a quick breakdown of the different types of slide outs you will find in RVs.

Slide Outs Powered by an Electric Motor

Electric motor slide outs require an electric motor to function properly. The track and gears used within an electric motor slide out are the same as some of the other slide outs, but the electric motor is responsible for moving the components and providing ease in use. These tracks are generally durable and lightweight, providing additional feasibility. 

Electric motors make it easier to retract and extend slide outs within your motor home. The arduous process is simplified and conducted in a matter of seconds. 

You can take the slide out and extend it to full size within a couple of seconds through the simple click of a button. Just bear with the whirring sound of the slide out propelling the tracks in the background, and you’re good to go. 

Slide Outs powered by Manual designs 

These slide outs follow an even simpler method, which can be either manually used or automated. Most rack and pinion slide outs are manual and are fairly easy to control and operate for most. Rack and pinion slide outs are also automated through hydraulics or an electric connection. 

The gear on the rack and pinion slide out can move in both directions, so retracting and extending the slide out is fairly easy. 

Slide Outs Powered by Hydraulics

All slide outs powered by hydraulics use air pressure as a controlling force. These slide outs are semi-automated through the use of an electric motor. 

The manual automation in the hydraulic system requires minimal effort since the hydraulic press does the lion’s share of the work. 

Hydraulic slide out s are a lot of cost options for traditional motorhomes. Heavy slide outs require the sturdiness and rigidity of hydraulic components to ensure durability. 

How to Operate an RV Slide Out With a Dead Battery?

Imagine you are out RVing with your family. Your motorhome was tuned to perfection before the trip, and everything was going smoothly. You stop your rig for a breather in the middle of nowhere and look to extend the slide out. 

But, alas, the slide out fails to function, as the battery is dead. You can either spend the rest of your trip fretting over the failed component or use our recommended techniques to get the slide outs up and running. 

As we have previously mentioned above, there are three simple techniques our readers can follow to operate their slide out with a dead battery:

• First, you can plug the camper into a shore power system and operate your slide out from the power generated through the shore power. 

Can You Manually Push In an RV Slide Out?

Some RV slide outs come with manual levers and gears as well. Manual levers are installed on top of the automated function to provide relief in case of emergencies. 

Your manual gear and lever can be used to extend a slide out if the battery is dead manually. However, for this technique to work, you need manual controls. 

How Long Do RV Slide Outs Last?

Having to brand new slide outs in your rig is surely a blessing. You can rely on the lubricated machine parts and the smooth movements. 

However, your RV slide out is a mechanical component that can soon wear out. You can extend the duration of use through good maintenance measures, but you will have to dispose of the unit eventually. 

The failure rate or lifetime of an RV slide out unit is highly dependent on how frequently they are used. The slide out team needs to be maintained as well for efficient durability. 

In any case, your slide out unit can give you a total duration of 10 to 15 years. After this period, your slide out unit will start faltering and develop flaws. 

You should regularly lubricate your slide outs. The gears and pinions of the slide out should be lubricated periodically to avoid flaws and ensure continuity. 

You should always lubricate, and oil key components and joints within your RV slide out before heading for a vacation with your family. The RV should be well-oiled at all times. Good lubrication can extend the RV’s life. 

How Many Watts Does an RV Slide Out Use?

Brand new slide outs require upwards of 60 volts to operate. Some traditional models can work with 12 volts, but those come with manual effort and slow inclines. 

You can also find modern systems with 110 volts or more. You can start the system through an external generator or start the truck. 

How Do I Reset My RV Slide Out?

Your RV slide out can easily be reset by unplugging the power from the shore power. Resetting can be complicated, but this resource will help guide you. 

You can also reset the RV slide by depressing the button three times and extending the slide 8 to 10 inches. This process can be repeated three times. 

Do I Need a Battery If My RV is Plugged In?

Your RV slide out needs a minimum of one power source at one point in time to function properly. The RV slide out won’t work properly if you don’t have a reliable power source. 

You will need a battery if you aren’t connected to an external power source. However, if you don’t have any other connection, you will need the car’s battery to automate the slide out. Once the RV is plugged in, you won’t need the battery. 

And That’s A Wrap!

All-new RV models have slide outs installed by the manufacturers. The slide out can help add square footage and enhance convenience. You can maintain the slide out with time and learn to monitor its power usage to extend its lifetime and get the best performance during your travels. 

What are some of the maintenance tips for RV slide outs? Pass them over to other readers and us in the comments. 

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We’re passionate about all things RV and camper, and love sharing tips, “how-to”, and reviewing the latest products to help make your camping experience a success!

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