Buyers Guide & Information

Best RV Batteries Reviewed

Supply your rig with consistent power, even when you aren’t plugged in. We rate and review the best RV house batteries to suit your needs.

An RV battery is used in recreational vehicles to supply power to the appliance and electronics. With the best RV battery, you can supply your rig with consistent power, even when you aren’t plugged in.

We will look through the options for the best RV house battery so you can find a model that suits your needs.


Benefits of Having Reliable RV Batteries

What are the benefits of owning the best RV battery for dry camping? If you plan to go off-grid, a deep cycle battery is needed to supply power to your RV appliances and electronics.

This battery is going to provide consistent power when you aren't connected to a source. With reliable batteries, you can also have confidence in knowing you have adequate battery storage and backup power.


Buyer’s Guide: High-Quality RV Batteries

Battery Type

You have many options when choosing an RV battery, based on what you are using it for. The starting batteries operate the same way as in a car and help the vehicle start. Deep cycle batteries are used for powering the electronics and come in a variety of forms. You can choose flooded lead-acid, AGM, gel, and lithium-ion batteries. There's also the option to use dual-purpose or marine batteries.

Depth of Discharge

As you look for the best battery for RV dry camping, you want to consider the depth of discharge. This number is expressed as a percentage, showing the specified amount of power that has been discharged from the battery. The lead-acid battery has a life cycle and discharge depth that is related. The deeper the cycle, the less time it will last.

Capacity

An RV battery's capacity is measured by Ah or Ampere hours. A battery with 100Ah capacity can deliver 100A for an hour. Ideally, you want a high-capacity battery because it can store more power and last longer. Many deep cycles and starter batteries are 12V, but you might be able to combine a 6V series together if you prefer.

Life Span & Expiration Date

A deep cycle RV battery is only as good as the time it will last. If you purchase a battery that has been sitting on a shelf for a couple of years, you aren’t going to get the same lifespan out of it as a fresh battery. Evaluate the expiration date before making a purchase to ensure you are covered.

Battery Size

While the power and capability are important, you must also consider the size of your RV battery. Look at the size and weight of your battery to guarantee it will fit. Measure the area where the batteries will be located to ensure there is enough room for storage.

Charging Method

How will you be charging the batteries? You can find the best RV battery charger to work with solar power, your generator, or shore power. You can also combine the three power sources, but will require a smart charger or controller to handle the management. The benefit of having a controller is that you can easily adjust the current and voltage.

Power at Low & High Temp

The battery must provide power at both low and high temperatures. In low temperatures, the battery must supply power despite the frigid cold. However, operation in a high-temperature area is also vital. This is most essential if you plan to camp in hot, humid regions. Ideally, the battery will handle both.

Build Quality

Consider the overall RV battery build quality as well. You want it to be sturdy and strong, so it is capable of withstanding vibrations and shocks. If you don’t get a battery that can handle this abuse, you could need to have more repairs performed as the battery gets damaged from traveling over rough terrain.

Price & Warranty

As you look through our best RV batteries review, you will find some cheaper options, but the price shouldn’t be your top concern. Instead, look at the value that’s offered. After all, it does no good to purchase a cheap RV battery that doesn't last when you can invest a little more and have a longer-lasting option.


8 Best RV Batteries Reviewed

1. Battle Born LiFePO4

Our Top Pick!

Voltage

12V

Amp Rating

100 Ah

Battery Type

Lithium

Dimensions

12.8 x 6.9 x 9 inches

Weight

31 lbs.

Warranty

10-year

If you want an RV battery monitor, you might do well with this option that has a built-in battery management system. This 12V deep cycle rechargeable battery is ideal for your camper, marine application, and van for any off-grid situation. The BMS protects your battery from failures, such as ground faults and temperature volatility. It also regulates the amount of power coming from the battery and provides a handy shut-off system during unsafe operation.

This lithium RV battery has unlimited mounting capacity and is cost-effective. It’s also safer to use than the lead-acid battery. Because it is constructed of 100% nontoxic energy, you are also doing good for the environment. Plus, you can charge it and discharge it repeatedly without a negative consequence. In addition, this battery only weighs 31 pounds, making it a lightweight option.

You will pay more to get this technology in your RV, but the cost will pay off. Plus, the company backs up its claims with a superior ten-year warranty, which is longer than most manufacturers are willing to offer. If you have been searching for a lithium-ion RV battery, you can’t go wrong with this option. Just look at the exceptional customer reviews from other users.

Pros

  • Highly rated
  • Durable, long-lasting
  • Battery management system
  • 10-year warranty

Cons

  • Higher price

2. Vmaxtanks VMAXSLR125

Best RV Deep Cycle Battery

Voltage

12V

Amp Rating

125 Ah

Battery Type

AGM

Dimensions

6.8 x 12.9 x 8.7 inches

Weight

75 lbs.

Warranty

Yes, 1-year

If you want to find the best battery for solar RV, you might consider this option. It's an AGM RV battery for use with PV solar panels, smart chargers, inverters, backup power, and wind turbines. This battery offers the most versatility possible, allowing you to charge it in multiple ways. The 12V heavy-duty battery is constructed from military-grade custom plates for maximum life. In fact, the company estimates a float service lifespan of between eight and ten years.

This battery is designed for 99% recombination capability and doesn’t have any dangerous gases or fumes. The weight of this battery is one of the downfalls. It does weigh about 75 pounds, so you might need some help with installation and replacement. However, if you read through the customer reviews, you will see that the majority of customers couldn’t be happier with the performance.

The price is reasonable and isn’t excessive, meaning it isn't considered a bargain-basement price, but not over the top either. However, the company only offers a one-year warranty. That is a standard in the industry but doesn't have lengthy protection as some of the other batteries on the market. We recommend this option if you want versatility and the ability to charge from multiple avenues.

Pros

  • Highly rated
  • Military-grade custom plates
  • No dangerous gases or fumes
  • Reliable performance

Cons

  • Heavy
  • 1-year

3. WindyNation 100

Best Solar Battery For RV

Voltage

12V

Amp Rating

100 Ah

Battery Type

AGM

Dimensions

13 x 6.8 x 8.7 inches

Weight

66 lbs.

Warranty

1-year

If you have an RV solar battery charger, you would appreciate this 12V AGM lead-acid battery. It provides 100 Ah to use with your solar panel for RV battery charging. This deep-cycle battery is constructed from heavy-duty plates that are meant for repetitive discharges. You can use this battery with more than just solar power as well. Consider charging it with your off-shore marine power or generator.

Because of the construction, it is rated for a low discharge rate and maximum power storage. The float life of this battery is 10 to 12 years while operating at 77 degrees Fahrenheit. It works at 100 Ah with the 10-hour rating and 110 Ah with the 20-hour rating. The battery itself weighs 66 pounds, so you might want some support during the installation.

The ratings are off the chart, with the majority of people offering five stars. Most customers are pleased with the durability and reliability. However, as with the last company, this battery only comes with a one-year warranty. Thankfully, the price is reasonable and not excessive at all. This battery makes a great investment if you need a reliable battery. The company also offers several other options to choose from if you need more capacity.

Pros

  • Exceptional customer reviews
  • Works with solar panels
  • Low discharge rates
  • Durable construction

Cons

  • Only 1-year warranty

4. Odyssey PC680

Best AGM Battery For RV

Voltage

12V

Amp Rating

16 Ah

Battery Type

AGM

Dimensions

7.2 x 3 x 6.7 inches

Weight

13.45 lbs.

Warranty

2-year

This 12V RV battery also comes highly recommended. The reputable company constructed this compact and lightweight battery to offer a longer service life, ranging from three to ten years. Odyssey claims it will provide a 70% longer cycle life compared to a typical deep cycle battery. It can run up to 400 cycles at 80% depth of discharge, offering high stable voltage for a longer time.

The durable construction provides vibration resistance against high-impact shock. It’s also extremely tolerant of high and low temperatures. This battery features a non-spillable design, allowing for some flexibility with the mounting. For all that you receive with this battery, it’s surprising how low the price is. Plus, the battery only weighs 13.45 pounds, making it easy to install and transport.

Overall, the majority of customers seem satisfied. It does have slightly lower ratings than some of the other batteries, mainly because of customer service issues. However, the manufacturer does provide a two-year warranty, which offers some additional peace of mind. We recommend this battery if you are looking for something lightweight, reasonably priced, and durable. For more capability, consider running several of these batteries, especially if you plan to be off-grid for some time.

Pros

  • Vibration resistance
  • Lightweight
  • Long cycle life
  • 2-year warranty

Cons

  • Customer service issues

5. Universal Power Group

Best RV Battery For Boondocking

Voltage

12V

Amp Rating

100 Ah

Battery Type

AGM

Dimensions

16.4 x 12.8 x 12.6 inches

Weight

60 lbs.

Warranty

1-year

Do you currently own the best RV solar battery charger? If so, you want a durable battery to pair with the charging system. This Universal Power Group AGM battery might be the right option for you. It’s a 12V 100Ah solar and wind deep-cycle battery. It's not only spill-proof, but also maintenance-free, so you have less to worry about. Because of this design, the rechargeable battery can be mounted in any position. However, it is on the heavier side, so you might need help getting it installed.

The durable construction ensures that this battery doesn't get damaged from vibration or shock. You can drive on any terrain, and the battery should remain protected. According to the reviews, this battery provides years of long-lasting support and reliable power. You won't have to worry about getting stuck without the power needed to run your lights and appliances.

In addition, you aren’t going to overspend to install this battery; it’s priced reasonably. The only thing we wish was different is the warranty term. The company provides a one-year warranty that you will likely never need anyway. If you plan on boondocking often, we highly recommend this battery option to supply your required power.

Pros

  • Vibration resistance
  • Reliable
  • Reasonable price
  • Maintenance-free

Cons

  • Heavier

6. Renogy Lithium-Iron

Best Lithium Battery For RV

Voltage

12V

Amp Rating

100 Ah

Battery Type

Lithium

Dimensions

10.2 x 6.2 x 9.7 inches

Weight

28.1 lbs.

Warranty

5-year

This 12V RV marine battery contains lithium-ion phosphate cells for maximum performance. This safe-to-use battery is fully sealed and comes in a waterproof housing. With this design, you won't deal with corrosion or leaking, making it an ideal choice to use in your RV, for off-grid applications, and with solar power. The other benefit to having this lithium-ion battery is the lightweight that makes installation a breeze.

This battery is rated for more than 2,000 cycles. That is double the typical lead-acid battery, proving that you can expect more from this construction. However, you are also going to pay a lot more. Another perk is the Battery Management System that optimizes the performance by balancing the cells automatically.

It also provides plenty of protection against over-current, over-charging, over-discharging, over-temperature, and short-circuits. Overall, this battery will only self-discharge at less than 3% per month, making it perfect for storage.

The ratings prove that this battery is well worth the expense. If that’s not enough, consider the five-year warranty offered by the company. You can’t really go wrong with a lithium battery if you are willing to spend more. Plus, this company is known for its reliable construction and power you can count on.

Pros

  • Maintenance-free
  • Durable
  • 5-year warranty
  • Battery management system

Cons

  • Expensive

7. Optima Batteries 8016-103 D34M

Best Battery For RV Dry Camping

Voltage

12V

Amp Rating

55 Ah

Battery Type

AGM

Dimensions

10 x 6.9 x 7.8 inches

Weight

43.5 lbs.

Warranty

2-year

A marine battery is also a great option for your RV, as seen in this example. The 12V AGM battery isn't designed like most of the others. The company uses a unique process that utilizes spiral winding continuous lead plates, instead of the flat plate construction. This process is more precise and controlled, supplying you with better power.

Thankfully, you can use it in any position because it is leak-proof. Put it in your RV and transfer it to your boat when it’s needed. As far as durability goes, Optima claims it is fifteen times more resistant to vibration than other batteries. Plus, they guarantee optimal starting power, even when the weather is bad. We do know that the company didn’t skimp on any materials, even using stainless steel stud posts. Plus, it’s not excessively heavy, making transportation easier than ever.

The price isn’t too high or too low, but just about right for what you are getting. According to the reviews, this battery supplies reliable power consistently. Plus, the company backs all of the claims up with a two-year warranty, which is double most of the other manufacturers. We recommend this battery for both your RV and your boat.

Pros

  • Maintenance-free
  • Vibration-resistant
  • 2-year warranty
  • Unique plate construction

Cons

  • Lower amperage

8. Optima Batteries 8010-044

Best 6 Volt RV Battery

Voltage

6V

Amp Rating

50 Ah

Battery Type

AGM

Dimensions

10 x 3.5 x 7.8 inches

Weight

18.5 lbs.

Warranty

3-year

When it comes time to find the best 6V RV battery, you’ll notice that your options decrease slightly. It’s not as simple to find reliable 6 volt RV batteries, but we have a top option for you. This Optima battery has exceptional reviews and provides the performance you are looking for. The 6 volt deep cycle RV battery has a reserve capacity of 100 minutes, offering constant power when you need it the most.

It even provides superior starting power when you are in bad weather, leaving you with less to worry about. The company claims that it is 15 times more resistant to vibration than some of the other top choices. The compact design also means that it weighs less, making it simple to install or replace. Furthermore, Optima provides a unique SpiralCell construction for cleaner, more reliable power.

You can’t really argue about the price for this battery, especially after you read through some of the 6V RV battery reviews. The customers are thrilled with the performance and can’t say enough good. Plus, the company backs up all of its claims with a three-year warranty, which is far longer than most other manufacturers are willing to provide. If you need a 6 volt battery, this is our top pick.

Pros

  • Maintenance-free
  • Resistant to vibration
  • 3-year warranty
  • Durable construction

Cons

  • Only 6V

RV Batteries Explained

  • Lithium ion 
    The best RV lithium battery is an ideal option for your recreational vehicle. The lightweight design makes it suitable for many users. It is often a better option than flooded lead-acid or AGM types because it offers between 3,000 and 5,000 life cycles and high charging efficiency. 
  • Deep Cycle
    Deep cycle batteries come in a variety of formats. The flooded lead-acid battery is also known as a wet cell. It contains electrolyte fluid surrounding the plates. These deal with overcharging well. The AGM deep cycle RV battery doesn’t require any maintenance and is stronger. On the other hand, the deep cycle gel battery is easy to transport and can deal with high temperatures or vibrations, but these are more expensive.
  • Solar
    The best solar batteries for RV are used with solar charging equipment. If your RV is set up to run on solar power, you will need a particular battery to supply your power. You will spend more to run solar equipment. However, you won’t be chained to a power source, since the sun is readily available.
  • 6V Starting Batteries 
    The starting batteries have thinner plates to maximize the surface area that’s exposed to the electrolytes. This allows for higher amounts of energy in shorter bursts. These batteries are rated on cold-cranking amps but are not ideal as a deep cycle battery. You don’t want to swap out the two varieties.
  • Dual Purpose or Marine
    With a dual-purpose battery, you get the starting power you need with ideal cycling capability. These batteries handle starting and cycling well, but they can’t always start an engine adequately. It also doesn’t handle discharging and recharging, as well as the deep cycle battery does. However, it’s often a good option if you want to use the battery in multiple ways.

Installing & Replacing RV Batteries

You can generally follow these steps to install or replace RV batteries.

  1. 1
    Power everything down.
  2. 2
    Open the battery hatch and remove the black cable terminal first.
  3. 3
    Remove the red cable terminal from the battery, but don’t allow the two cable terminals to touch.
  4. 4
    Carefully remove the batteries from the compartments.
  5. 5
    Put the new batteries into the compartment.
  6. 6
    Attach the red cable terminal and then, the black cable terminal.
  7. 7
    Secure the connections and close the battery compartment
  8. 8
    Start up the RV and verify power.
  9. 9
    Dispose of the batteries properly.

Here is a video showing you how to hook up RV batteries.

To connect your battery up to solar panels, you will need an inverter. You can also hook up RV batteries in a series or in parallel with one another. Hooking up in a series allows you to achieve the desired voltage by putting cells together. A parallel connection attains a higher capacity by adding to the ampere-hour.


RV Battery Charger Options

  • Generator 
    One of the best ways to charge your RV battery is with the generator. To charge an RV battery with a generator, you simply run the equipment until the batteries are fully charged. It’s often best not to have the RV plugged in at the time. You also want the RV turned off with your emergency brake engaged to avoid any accidents. The charging time will depend on the weather, and you might not achieve full capacity if the temperature dips below 40 degrees. To help the battery charge as fast as possible, turn off all appliances and electronics.
  • Solar Panel
    If you spend a lot of time boondocking, the solar panel might be your best charging option. With the best solar panel for RV battery charging, you have a completely portable option that works anywhere. Plus, the charging is free and doesn’t require anything but the sun. Of course, you need to have the solar panels installed, which adds to the upfront cost. You will also need an inverter to convert the power. Some people prefer to purchase an entire solar power charging kit for the RV to keep things simple. For optimal results, make sure your solar panels are facing the sun.
  • Jumper Cables / Battery Charger
    It’s also possible to use a portable RV battery charger. This unit contains both the positive and negative clamps that connect directly to the battery. Before you start charging the battery, you should disconnect it from the RV. You will know that the charging is complete when the light turns on, indicating a full charge. When it is complete, simply turn off the charger and disconnect it from the battery, starting with the black clamp. If you have a dead RV battery, you could also jump start it with a vehicle and cables, just as you would another vehicle. 
  • Converter Charger 
    If you have a converter, it’s not difficult to charge the RV batteries. This device converts 120V alternating power into 12V DC. It’s not always the most efficient way of charging RV batteries, because it only supplies about 40 amps. This device will charge the battery at up to 5 amps. If you have a completely drained or depleted battery, you are going to require a lot of time with this method. If you plan on using a converter, you will want to plan ahead for charging times. Overall, this is one of the least effective ways to charge the RV battery.

RV Battery Storage & Maintenance

When your RV goes into storage for the winter, you want to store the batteries separately. Follow these steps to protect the batteries.

  1. 1
    Visually inspect the batteries for any sign of damage. Leaking or defective batteries should be replaced.
  2. 2
    Clean the batteries with a baking soda and water mixture.
  3. 3
    Test the battery with a voltmeter and charge it completely
  4. 4
    When you reinstall the batteries, you will want to charge it again.

If you don’t feel comfortable working with your lead-acid battery, make sure you hire a professional instead. The lithium-ion RV battery will not require the same kind of maintenance.


People Also Ask (FAQs)

Does A RV battery charge when plugged in?

Your RV batteries are charging when you plug into a shoreline. However, this is only a trickle charge and might take some time to bring the batteries up to full capacity.

Should I leave my RV plugged in all the time? Should I leave the inverter on constantly?

You can leave the RV plugged in, but it will drain your wet-cell batteries levels quicker, so you want to check on them often. In addition, leaving the inverter on, even when you don’t need it, further drains the battery levels.

How long does an RV battery last?

If you take care of the RV battery, it should last between five and seven years. However, this requires that you properly discharge and recharge it appropriately.

How does temperature affect RV batteries?

Colder temperatures cause chemical reactions to slow down, which results in smaller current production. However, the battery can last longer in these environments. When the temperature rises, chemical reactions speed up and produce more current, thereby shortening the battery life.

How do you calculate amp usage in an RV?

To calculate RV amp usage, first consider how many amps you use daily. Find the wattage and amps used for each item you run in a day. It might be easier to break down what is needed per hour. Consider your coffee maker, lights, water pump, and more. From here, you will be able to figure out the average amp usage.

How much should an RV battery typically cost?

RV house batteries vary widely in sizes and styles, which also dramatically changes the pricing. You can find models for as little as $50 or spend over $700 on a high-end model.

What is sulfating in batteries?

Battery sulfation is the buildup of lead sulfate crystals. This leads to premature battery failure in lead-acid batteries. Most often, it occurs when you deprive the battery of a full charge. Sulfation impedes the chemical to electrical power conversion.

Can I run my RV without a battery? What RV appliances can I run on battery power?

While most power converters will work without a battery in place, you shouldn't do it. Without the battery, you have no backup power supply if the electricity goes out. Thankfully, your batteries can run the lights, water pump, and appliances without being plugged in.

How many batteries do I need for my RV?

It depends on how much amperage you need. You can use one 12V 24 group deep cycle RV battery to provide 70 to 85 Ah. Using two 12V 24 group RV batteries in parallel will provide 140 to 170 Ah.


Conclusion

So, what is the best RV battery? It depends on what type you are looking for. However, we highly recommend the Battle Born LiFePO4. It contains a built-in management system that makes understanding your power usage more accessible than ever before.

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