Best RV Deep Cycle Battery

Choosing a deep cycle or deep cell RV battery is challenging because you could easily end up with the wrong one that runs out of cycles or lacks the capacity for your RV appliances. You could also get confused seeing so many types of deep cycle batteries available out there. 

So how do you come up with the best in the business? We’ve researched the factors that make a good RV deep cycle battery and then used them to examine dozens of options for finding out which one provides a steady amount of current over a long time with minimum hazards.

Thanks to some of the serious RVers who came with practical reviews that helped us develop this concise list of the best RV deep cycle battery. So you can choose yours easily before your next adventure trip and that too without getting overwhelmed by the tons of options.

List of Best RV Deep Cycle Battery:

10 Best Deep Cycle Batteries For Rv

We shortlisted 10 of the deep cycle batteries for RV here. Check out our exciting RV deep cycle battery reviews here and see what you could expect from some of the best in the business.

1. Weize 12V 100AH Deep Cycle AGM SLA VRLA Battery

Weize 12V 100AH Deep Cycle AGM SLA VRLA Battery for Solar System RV Camping Trolling Motor, in Series 24V 36V 48V

When choosing lead-acid RV batteries, the Sealed Lead-Acid, specifically the Voltage Regulated Lead-Acid battery, makes the best choice. This battery technology gets even better when combined with the Absorbent Glass Mat or AGM separators. 

With a steady and consistent discharge rate, this battery can power up all the common RV appliances, including microwave, coffee maker, lights, laptop, etc.

Installing this battery in the RV unit is pretty straightforward. You can connect it in series to double the voltage and maintain the same capacity, or connect in parallel to double the capacity and maintain the same voltage. You get screws in the package to make installation easier, but you may need to buy a wire harness to cable wire the zinc-plated M8 battery terminal bolts.

Although the battery is true to its 100 AH operating capacity and 12V rating, we prefer going for two batteries for the RV to ensure that you don’t lack in power.  

It comes with a 50% maximum depth of discharge (DoD) standard for lead-acid batteries. So don’t let it deplete more than 50% before charging. The best thing about such batteries is that there’s no chance of leakage, and it includes a safety vent valve to release excessive gas and prevent losing water. 

It also comes with spill-proof construction and a maintenance-free design. You can trust this to resist extreme heat and vibration to ensure a long cyclic life eventually. The strongly made ABS container also helps the cause by preventing spark and air from entering.

It has a built-in BMS for protection against overcharging/discharging, overcurrent, and short-circuiting. Talking about performance, you get extended standby life with reduced plate grid corrosion as it combines grid-refining technology, oxygen recombination, and thicker plates. 

It doesn’t include any waterproof labeling, but we assume it comes with an IP65 waterproof rating.

Highlighted Features:

  • Rechargeable Sealed Lead Acid Battery with  100AH capacity and 12V voltage rating
  • Compatible max charging current below 30A and voltage ranging from 14.10V to 14.50V 
  • 2000 to 5000 life cycles with a lifetime of up to 10 years.
  • It weighs 63 lbs with battery dimensions of 12.99’’ x 6.73’’ x 8.43’’
  • Low self-discharge rate at 40% a year or 3.3% a month
  • Requires top charging every 2 to 3 months
  • UL recognized and CE certified
  • 1-year limited warranty

Check Price On Amazon

2. Universal Power Group 12V 100Ah Solar Wind AGM SLA DEEP Cycle VRLA Battery 

Universal Power Group 12V 100Ah Solar Wind AGM SLA DEEP Cycle VRLA Battery 12V 24V 48V

We’ve been looking for AGM/SLA battery technology for reasonably priced RV deep cycle batteries. And we end up with a fantastic one from the Universal Power Group. It’s also a Voltage Regulated Lead Acid Battery with 12V 100AH specifications.

It turns out quite true to the ratings. But we won’t say it completely holds to specs, and you’d probably need at least two batteries to power up your common camper appliances.

The battery installation is straightforward and similar to installing any other deep-cycle RV battery. Simply connect them in series in a way that the positive and negative battery terminals meet the vehicle’s positive and negative lead, respectively. You can mount it in any position you like. 

It’s a maintenance-free battery like other AGM-SLA batteries. The spill-proof construction is pretty reliable. There are some more safety features, including vibration resistance and shock resistance. 

We are not sure whether it has a built-in BMS for protection against short-circuiting or overcharging. But it can work well in a wide range of operating temperatures, including very high and low temperatures. 

Like most lead-acid RV deep cycle batteries, it has a 50% Depth of Discharge (DoD). Although you can use a deep cycle battery for cranking, you generally won’t do that. So we don’t have info about its CCA rating here. The charging and discharge time isn’t specified; however, it should typically take around 10 hours to top charge.

 The average discharge and top-up charging time are around 2 to 3 months. Make sure you charge it once it gets below 50% and not leave it uncharged for long. We think it’s waterproof but didn’t find any information from the manufacturer.

Highlighted Features:

  • Rechargeable SLA/AGM Battery with 100AH capacity 12V voltage rating
  • The maximum charging current should be below 30 amps, and the voltage should be in the range of 14.50V to 14.90V
  •  3000 life cycles with a 3 to 5 year lifetime
  • Weighs 63.93 lbs with attery dimensions of 12.17’’ x 6.61’’ x  9.16’’ 
  • Low self-discharge rate
  • UL recognized
  • 1-year limited warranty

Check Price On Amazon

3. Renogy Deep Cycle AGM Battery 12 Volt 100Ah

Renogy Deep Cycle AGM Battery 12 Volt 100Ah, 3% Self-Discharge Rate, 2000A Max Discharge Current, Safe Charge Most Home Appliances for RV, Camping, Cabin, Marine and Off-Grid System, Maintenance-Free

You’ve probably been longing for something from Renogy on the list. We know how amazing Renogy is as a battery manufacturer, so we took no time to get an insight into its deep cycle AGM battery and bring the review in front of you. A couple of these 12V 100AH batteries can power up most of your RV appliances.

Talking about its battery technology, you probably get the best in its class. This sealed lead acid battery combines both Absorbent Glass Mat separators and Advance Valve Regulation. So what you get is a leak-proof, gas-free, and completely maintenance-free battery. 

While figuring out the reasons for its stable discharge rate and consistent performance, we came up with its proprietary Quinary Alloy Plate alongside the Specially-treated Plate Grids. They seem to enable its fantastic discharge performance.

It can ensure a long shelf time while not in use. The monthly self-discharge rate is claimed at 3% at 25C temperature. So it seems pretty lower than its many counterparts. It even performs well in extreme temperatures ranging from 5F to 122F.

Since it’s designed to use in Solar Energy Storage Applications, you can expect a stable performance even at sub-zero temperatures. So don’t worry about camping in extreme conditions. It has a decent CCA rating to keep you going in cold temperatures.

The battery is easy to install. Just keep a few things in mind. Place it upright during installation. You can combine more batteries either in series or parallel, but make sure the AGM, Ah, and Voltage specs are identical.

This 100Ah 12V battery seems quite true to the capacity and performance for off-grid backup. Two of these batteries looked fine for us to run all the common RV appliances. There are so many good things about the Renogy 100Ah battery, but the battery health still remains a concern, and the manufacturer should look into it. 

Like most AGM batteries, it’s also maintenance-free and should keep you worry-free about leakage, water loss/refilling, or harmful gas release. It comes with a heavy-duty ABS container that protects the unit against vibration and shocks. 

It’s backed reliable warranty; however, we couldn’t extract information on its certifications. Also, there’s no info about its waterproof rating and built-in BMS. You generally get these features in Renogy’s Lithium Iron Phosphate Batteries. 

Highlighted Features:

  • Max charging current 30A and max discharge current 1100A 
  • Weighs 66 lbs with size dimensions of 13’’ x 6.8’’ x 9’’
  • The battery terminal type is M8 bolts with thread pitch
  • Cycle use voltage ranges from 14.4V to 14.8V
  • Up to 5000 expected life cycles with a lifetime of more than ten years
  • 2-year material warranty

Check Price On Amazon

4. Vmaxtanks VMAXSLR125 AGM 12V 125Ah SLA Rechargeable Deep Cycle Battery

Vmaxtanks VMAXSLR125 AGM 12V 125Ah SLA Rechargeable Deep Cycle Battery for Use with Pv Solar Panels Smart chargers, Wind Turbines and Inverters and Backup Power (12 Volt 125Ah Group 31 AGM)

100Ah capacity just doesn’t suffice? Fair enough, if you’re an RVer with tons of appliances to run. Considering this fact, we checked into something that has more capacity and is more amazing! The rechargeable deep cycle battery from Vmxtanks with 125Ah capacity surely requires your attention, and here we’re with the review. 

Interestingly, you can charge this battery with an appropriate solar panel, and this is what the serious campers want. For installation, it’s just another high-quality AGM Sealed Lead Acid battery that you can easily put on the respective slot in your RV. 

It combines quite some battery technologies to become a tough battery for tough applications. The sealed, leak-proof construction ensures maintenance-free operation, so you don’t have to refill water or do check-ups for electrolyte gravity. There are also heavy-duty, military-grade plates for resisting vibration and providing more performance margin.

We’re not sure whether it has a built-in battery management system, but it is well prepared to protect against short circuits, temperature incompatibility, overheating, or overcharging.

The deep cycle battery comes with 99% recombination capabilities with no harmful gas or fume. This battery’s recharge and discharge cycles are the highest in its class. So you can expect the maximum life cycles service life. 

It comes with a very low self-discharge rate, around 1 to 2% per month, and you’d find it withstanding repeated cycles while staying charged in standby backup modes. The charging and discharge time is standard for lead-acid batteries. The expected depth of discharge is 50%, and you shouldn’t deplete it any further.

The design includes safety features to protect against short circuits, vibrations, and shocks. Being a Group 31 battery, it’s large and powerful with a high CCA rating. But CCA is insignificant when it comes to deep cycle battery as you’ll not be using it as the starting battery. 

It works with a wide range of operating temperatures. We couldn’t find information on its certifications.

Highlighted Features:

  • Weighs 75 lbs with size dimensions of 12.9’’ x 6.8’’ x 8.7’’
  • Built with Military-grade custom-made plates with rugged ABS container
  • 125Ah capacity and 12V nominal voltage rating
  • The maximum charging current is 8A to 35A, and the voltage is 14.4 to 14.9V.
  • The maximum discharge current is 2000A.
  • More than 3500 life cycles with a service life of up to 10 years in float mode
  • 30-day replacement guarantee and up to 12 months warranty for solar and power backup applications

Check Price On Amazon

5. LOSSIGY 12V 300AH Lithium Battery Deep Cycle Lifepo4 Battery

LOSSIGY 12V 300AH Lithium Battery Deep Cycle Lifepo4 Battery, Built in 200A BMS, The Perfect Replace for Solar Wind Storage System, RV, Marine Off-Gird Battery, 4000-7000 Cycles

For a deep cycle battery with a larger depth of discharge, more life cycles, and more usable energy, you probably have to look beyond AGM/SLA batteries and turn to Lithium Iron Phosphate (LiFePO4) battery technology. 

The fact that lithium batteries are incredibly well for RVs, we came up with a fantastic LiFePO4 battery from LOSSIGY.. It has great advantages over AGM/SLA batteries, like its lightweight, higher energy density, stable performance, and higher power.

It takes a little effort to install this battery in your RV. You can connect this in series up to 4 or parallel up to 10. We think you need at least four of them to get all your appliances to run smoothly. It’s completely maintenance-free, so there’s no need for water refilling or anything.

The battery comes with some powerful specs, including 300 amp-hours capacity, 1280WH power output, and 12.8V nominal voltage. The major highlight is its depth of discharge which is almost 100%, meaning you can use most of its energy. But it’s recommended not to deplete it more than 80%.

It works with a wide range of temperatures, but no Cold Cranking Amps (CCA) is specified.

The battery should take up to 4 hours to top charge. Its discharge rate is 1C means the unit discharges in 1 hour. It’s available in different voltage and current ranges. You get 100AH to 300AH models with voltage options of 12V, 24V, 36V, and 48V.

It comes with a built-in Battery Management System (BMS) to protect the battery from overcharging, short-circuiting, or other hazardous conditions during charging or discharging. No information on its waterproof rating.

Highlighted Features:

  • Weighs 75 lbs. with size dimensions of 20.55’’ x 10.66’’ x 8.58’’
  • 4000 to 7000 life cycles and up to 10 years of service lifetime
  • The maximum charging voltage is 14.2V to 14.6V
  • The maximum continuous charging and discharging current are 200A. 
  • The terminal type is M8 battery terminals
  •  UL certified lithium batteries
  • 5-year warranty

Check Price On Amazon

6. Zooms 12V 100Ah LiFePO4 Deep Cycle Battery

Redodo 12V 100Ah LiFePO4 Deep Cycle Battery, Rechargeable Lithium Iron Phosphate Battery, Built-in 100A BMS, 4000 Cycles Battery for RV, Camping, Solar Home etc

Why choose LiFePO4 battery technology for RVs? There are many reasons, including the enormous life cycles and the service life. While looking for the best LiFePO4 battery, we came up with an amazing one from Zooms. This 100 AH capacity battery can be a great replacement for convenient lead-acid batteries. 

The industry-leading battery technology ensures stable performance with higher power output (1280W) and energy density. It’s not high in everything. In fact, it’s low in weight and self-discharge rate, something you want for your RV battery. It includes Prismatic LiFePO4 cells with more stability and to perform in high-temperature conditions.

It has a straightforward installation process, and you can connect them in both series and parallel for up to 4 batteries. You can mount these batteries in any position you want in your camper. The battery offers a maintenance-free operation that keeps you relaxed during your outings. 

The unit comes with a 100AH capacity and 12.8V voltage rating. Like most other LiFePO4 batteries, it has an 80% Depth of discharge, allowing you to take it far without charging. The high energy density also ensures long-term recycling. No CCA rating is available for the product.

It comes with a built-in 100A Battery Management System for protection against short circuits, overcharges, or other hazardous conditions. The safety features include vibration and shock resistance. Its environment-friendly construction ensures safe outdoor uses. It works with a wide range of operating temperatures.

Highlighted Features:

  • Max charging and discharging current is 100A with a charging voltage ranging from 14.2V to 14.6V
  • 4000 to 8000 life cycles with ten years of service life
  • Charging and discharging time is 5 hours at a 0.2C rate.
  • It weighs25.35 lbs with size dimensions of 13’’ x 6.82’’ x 8.48’’
  • The terminal type is M8 battery terminals
  • UL approved
  • IP65 waterproof rating
  • 5-yeas warranty

Check Price On Amazon

7. JITA 12V 100Ah LiFePO4 Lithium Battery RV Deep Cycle Battery

JITA 12V 100Ah LiFePO4 Lithium Battery RV Deep Cycle Battery, Built-in 100A BMS, 10 Year Life, 1280W Power Output for RV, Solar Power System, Marine, Home Energy Storage and Off Grid

Here we’ve got another reasonably priced LiFePO4 deep cycle battery for your RV. JITA deep cycle lithium battery comes with a wide range of options to let you find your most suited one. This battery comes with a Lithium Phosphate Iron battery technology and a 100 amp-hour and 12.8V nominal voltage power capacity. It includes higher power output of 1280WH.

It weighs less and is safer to use than traditional lead-acid batteries. So it doesn’t overburden your camper. Besides, lithium batteries are fantastic for RVs for their safety features. It doesn’t release any harmful fume or gas performance and is compatible with a wide range of operating temperatures.

The unit felt pretty straightforward to install. Its ABS hardshell, waterproof property, and easy mounting options perfectly suit outdoor applications. You can install it in the RVs with up to 4 identical batteries in both series or parallel to power your amenities on long-distance outings.

The maximum depth of discharge is 80% which is standard for batteries of this kind. The charge and discharge time are not specified, but it should be around 4 hours at a 1C rate.

It’s a completely maintenance-free unit and doesn’t require any follow-ups. It comes with a 100A battery management system to protect against shortcircuit, overheating, overcharge, or similar conditions. The unit is vibration resistant and also includes a high-temp cut-off system to prevent charging temperature over 167F and avoid accidents.

A warranty policy backs the product, but there’s no specific information available.

Highlighted Features:

  •  It weighs 24.2 lbs with size dimensions of 15’’ x 10’’ x 7’’
  • The maximum charging and discharging current is 100A
  • The maximum charging voltage ranges from 14.2V to 14.6V
  • The terminal type is M8 battery terminals
  • 2000 to 5000 life cycles with a service life of more than ten years
  •  It’s waterproof and has an IP65 rating.
  • UL tested

Check Price On Amazon

8. EverStart Lead Acid Marine & RV Deep Cycle Battery

EverStart Lead Acid Marine & RV Deep Cycle Battery

Let’s get back to the lead-acid batteries again. They make an excellent choice when you want to avoid a high upfront cost, and we know a lot of RVers who are tight on the initial budget for the battery. The EverStart Lead Acid Deep Cycle battery is super economical and is specifically designed for marines and RVs. 

This battery comes with a decent capacity and power rated at 122 amp-hours and a 12V nominal voltage rating. You can install it in your RV battery slots without any difficulty. Combining two of these should suffice your travel necessities.  It comes with basic lead-acid battery technology but should get you going with your electrical needs.

The maximum charging current is not specified, but it should be below the rated power capacity. It comes with an 845 MCA rating, but there’s no CCA rating mentioned. It doesn’t include any charging and discharging time info. But like regular lead-acid deep cycles, it should take around 10 hours to top charge. 

Basic lead-acid batteries come with lower life cycles and need more frequent replacement than lithium batteries. You should try using a battery maintainer to extend its service life and avoid freezing in the cold. 

Under normal operation situations, the battery is totally maintenance-free. So you don’t have to worry about refilling water or other maintenance tasks. The unit doesn’t have any built-in BMS or features like vibration resistance. Yet it provides basic protection from short circuits and voltage instability. There’s no waterproof rating included in the product.

Highlighted Features:

  • It weighs 58.7 lbs with  size dimensions of 13’’ x 6.8’’ x 10’’
  • The terminal type is dual post battery terminals
  • It should last for around 1000 cycles with a service life of 2 years
  • 1-year free replacement warranty.

9. Interstate Marine/RV Deep Cycle Battery

Interstate Marine/RV Deep Cycle Battery

The Enhanced Flooded Battery is an entry-level battery technology used in automotive applications. But it can really come in handy for its high-cyclic ability.  That’s why we’ve had a go with the best in class — Interstate RV Deep Cycle Battery. We think it’s a good consideration as a mid-tier power source for camper vans.

It’s not designed to deal with high-specificaiton automobiles like AGM batteries. But it does well with RVs having common amenities like cooktops, refrigerators, lights, etc. 

The major highlight of this product is its higher life cycle compared to most traditional flooded or wet batteries. And that life cycle is almost equivalent to AGM batteries at much lower costs. It should last more than 200 life cycles at 50% depth of discharge or 50 to 60 life cycles at 100% depth of discharge. The expected service life of this battery is around five years.

Installation is pretty easy and similar to installing any other RV battery. Talking about capacity, it comes with 90 amps-hours at 20 hours and 160 reserve capacity (160 minutes). It includes a higher CCA rating, which is great for starting and stopping RVs.

This battery doesn’t have any battery management system (BMS), but there are some convenient safety features such as vibration resistance. It’s a maintenance-free unit that doesn’t require any monitoring. There’s no information found on its certifications or waterproof rating.

Highlighted Features:

  •  Weighs 50.7 lbs with size dimensions of 12.75’’ x 6.75’’ x 9.5’’
  • The continuous maximum charging and discharging current is 90A.
  • 800 cold-cranking amps (CCA)
  •  The battery terminal type is marine type post
  • 2-year warranty

10. BSL Batt Lithium 12V 100AH Deep Cycle LifePO4 Battery

BSL Batt Lithium 12V 100AH Deep Cycle LifePO4 Battery

Let’s end the list with a power-packed lithium-ion battery from BSL. This LiFePO4 battery technology ensures power for different off-grid applications, including RVs. It’s backed by a massive warranty policy that interested us in checking the product.

The unit is compact and lightweight, so it could be an excellent upgrade to the heavy lead-acid batteries and a great upgrade to your lifestyle as well.

It comes with a standard 12V voltage rating and 100 amp-hours power capacity. You can combine two or more batteries in your RV to smoothly run all the common appliances. The battery has a maximum power output of 1280Wh. The installation is right out of the box and doesn’t require anything special to mount. 

The depth of discharge is 100%; however, it’s recommended the battery shouldn’t be depleted more than 80% to maintain a better life cycle. It doesn’t include any CCA rating.

The unit is maintenance-free, so you don’t have to bother refilling water or other maintenance tasks. You get an integrated Battery Management System (BMS) to provide comprehensive battery protection against short circuits, overcharging, or overheating. It’s constructed well and is vibration-resistant as well.

Highlighted Features:

  • The maximum charging current is 50A, with the maximum charging voltage of around 14.6V. 
  •  The maximum discharge current is 100A.
  •  Weighs 30 lbs, and size dimensions are 10.62’’x 23.62’’x 2.55.’
  • The charge and discharge time meets industry standards with a self-discharge rate of less than 3%
  • It comes with a 2000 to 6000 life cycle, and the expected service life is about 15 years
  •  It comes with an IP56 waterproof rating
  • The terminal type is M8 battery terminals
  • 7-year warranty

How to Choose a Deep Cycle Battery for RV? 

Choosing a deep cycle battery for RV could be a little tricky. It needs several factors: technology, capacity, how deeply you can discharge it, average life cycles, size constraints, and safety features. 

Here we’ll be discussing all these factors so that you don’t mess up while choosing the best deep cell battery for RV.

Battery Technology

There are many types of deep cell batteries for RV in terms of battery technology. They mainly fall into two categories: 

  • Lithium Iron Phosphate (LiFePO4
  • Lead-Acid batteries

We’ll talk about all these types in the next segment. Here we’ll give you an idea about which battery technology you should go for. 

Lithium batteries make the best choice for their higher capacity, power output, energy density, and life cycles. These batteries have a higher upfront cost, but they seem pretty worth it when considering the life cycles and service life.

Deep Cycle Battery for RV

On the other hand, you’ve got lead-acid batteries that mostly come in SLA/AGM combination and make a reasonably priced option with decent capacity, maintenance-free operation, and great safety measures.

These battery technologies have their own advantages, but if you’ve got a good budget to spend on Lithium or LiFePO4 batteries, you surely make an incredible choice for RVs.

Life Cycles & Service Life

Life cycles or service lifespan is an important consideration when it comes to choosing the best deep cycle RV battery. You don’t want to get into replacement costs sooner with such batteries. The LiFePO4 batteries can get up to 8000 life cycles with a service life of up to 10 years. 

At the same time, a typical SLA/AGM battery will provide 2000 to 5000 life cycles with a service life of up to 6 years.

Battery Capacity

The minimum capacity of a typical RV battery shouldn’t be less than 80 amp-hours. You should consider a battery that comes with a 100 amp-hours capacity. Since most RVs need around 200 amp-hours to run the common appliances, you can go for one with more capacity or buy multiple batteries to meet your RV electrical needs. Regarding nominal voltage capacity, the standard and common one is the 12V RV battery deep cycle option.

Deep Cycle Battery

Depth of Discharge

You generally want a battery that you can discharge deep to use up most of its energy. At the same time, the deep discharge shouldn’t affect the total cycle life of the battery. Depth of Discharge (DoD) is an indicator that allows you to go far with the battery safely without charging it. 

Most RV deep cycle batteries, especially the SLA/AGM batteries, are designed to handle a 50% DoD. On the contrary, lithium batteries can handle around 80% to 100% DoD safely and without affecting the life cycles. But again, it’s recommended that you don’t deplete more than half as a good practice.

Weight and Size

The weight and size constraints are significant factors when choosing the best deep cycle battery for RV. You should definitely look for one that’s more compact and lightweight so that it doesn’t overburden your camper. At the same time, a lighter and smaller unit is more energy-dense and has better energy efficiency compared to the larger and heavier batteries. 

Deep Cycle Battery for RV

The lithium-ion batteries are generally the lighter and smaller deep cycle RV batteries available out there. There are a few competitions from SLA/AGM batteries. So make sure you go through the weight and size dimensions before buying.

Built-in BMS & Safety

The built-in battery management system provides comprehensive protection to any battery. So your battery stays safe from short circuits, overcharging, overheating, or any such hazards. The top deep cell RV batteries come with an integrated BMS to ensure enhanced service life and reliable operation.

There are some other safety features that you can consider, such as vibration resistance, spill-proof construction, no gas leakage, etc. They should also be maintenance-free, meaning you shouldn’t bother refilling water or taking any extra care of the batteries.

Types Of Deep Cycle Batteries

There are different variants of deep cycle RV batteries available in the market, so you must know all of their types while choosing the best RV deep cycle battery.

Lithium-ion and Lead Acid Batteries are two major deep-cycle batteries. For Lithium batteries, the Lithium Iron Phosphate battery (LiFePO4) is the best type of battery available for RVs. 

Deep Cycle Battery for RV

On the other hand, lead-acid batteries can be divided into Flooded Lead-Acid and Sealed or Valve Regulate Lead Acid (VRLA) Batteries. 

Further,  you can divide the VRLA batteries into two more types: Absorbent Glass Mat (AGM) and Gel batteries. The Flooded batteries have an improved version known as Enhanced Flooded Batteries (EFB). 


Let’s find answers to the FAQs on RV deep cycle batteries.

1. How long should a deep cycle RV battery last?

The lead-acid deep cycle RV battery should last for around six years; on the other hand, the lithium batteries (LiFePO4) should last up to 10 years.

2. What is a good deep cycle RV battery?

A deep cycle battery is considered good if it has features like higher power output, more energy density, prolonged life cycles, reliable safety, low self-discharge rate, the convenience of use, and so on.

3. Are marine deep cycle batteries good for RV?

A marine deep cycle battery isn’t the first choice for RVs; however, it can be a good alternative if it comes with a higher reserve capacity and a slow discharge rate to provide a steady current over a long time.

4. What is the longest lasting deep cycle battery?

There are quite a few LiFePO4 deep cycle batteries that could be considered the longest-lasting deep cycle battery, and all of these need to have a service life of ten years or more.

5. Is a deep cycle battery good for a camper?

A deep cycle battery is always a good option for campers to get a consistent amount of current over a long time. They’re good because you can discharge and charge them without damaging the battery. You can also use them in varying temperatures as well. 

6. How do you maintain a deep cycle RV battery?

You need to follow a few things to maintain your deep-cycle RV battery. The most important of them is to fully recharge the deep cycle RV battery following the discharge cycle. Never let it go below the specified depth of discharge level (generally 50%). 

Also, keep the battery terminals clean and corrosion-free. Although most deep cycle RV batteries are maintenance-free, you should still check the electrolyte level or voltage once in a while.

7. How much do deep cycle RV batteries cost?

The basic lead-acid deep cycle batteries aren’t expensive and could cost as less as $50. On the other hand, a high-end deep cycle battery (mostly LiFePO4) could even cost you more than $1000.

Final Words

After accumulating all the RV deep cycle battery reviews here, we can say your mission of finding the best power companion for your RV shouldn’t be stressful anymore. You simply have to follow the guidelines, check the features and specifications of each of the batteries, and trust our reviews. 

If you find one that suits your needs, jump into it, as all of them are good enough to be right up your alley. While checking the specs and the features, always go for the battery with maximum life cycles and higher capacity. So you can have more of your appliances run for a longer period of time. 

We’ve seen multiple lead-acid and LiFePO4 batteries. If you ask us about our favorite from this list of the best RV deep cycle batteries, we’d probably go for a LiFePO4 battery like Lossiggy. 

And in the lead-acid category, Weize makes the best choice for us. You can also consider the Interstate Battery for its compact and lightweight nature. Eventually, the decision is up to you!