Best RV Batteries: Deep Cycle, Lithium, Solar, 6V All Reviewed

RV Battery Comparison Table 

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.

1. Battle Born LiFePO4

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.

2. Vmaxtanks VMAXSLR125

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.

3. WindyNation 100

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.

4. Odyssey PC680

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.

5. Universal Power Group

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.

6. Renogy Lithium-Iron

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.

7. Optima Batteries 8016-103 D34M

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.

8. Optima Batteries 8010-044

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.

RV Batteries Explained

Installing & Replacing RV Batteries

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

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

RV Battery Charger Options

RV Battery Storage & Maintenance

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?

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?

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