FINDING THE BEST RV BATTERY depends on what you need. After all, there are several RV battery types to choose from, with some options better suited to casual weekend campers and others best for off-grid adventurers. Whether you’re replacing a flooded RV battery or upgrading to one of the best lithium batteries for RV camping, let’s explore your options.
Key Takeaways
- RV battery types and uses: Choosing the right RV battery depends on your camping style. Flooded batteries suit budget-conscious or casual campers, AGM offers balance and reliability, while lithium delivers long lifespan and off-grid performance.
- Top battery picks: Featured options include Odyssey and Roadhawk AGM models, Interstate flooded deep-cycle batteries, premium lithium choices like Xantrex and Expion360, plus 6V options from Go Power! and Trojan.
- Extras & protection: RV battery boxes, such as those from Camco, protect and secure batteries. Single and dual-battery options are available to match different group sizes.
Picks for the Best RV Battery
Here are some of the best-rated RV batteries you can find in Camping World stores nationwide or have shipped to your preferred location.
Best AGM Battery for RV Campers
Let’s start with the top-rated AGM batteries for RV use.
Odyssey ODP-ACE31M Battery
- Rated Charge Capacity: 100 amp hours (20-hour rate)
- Cold Cranking Amps: 925
- Reserve Capacity: 200 minutes at 25 amps
- Dimensions: 13″ x 6.8″ x 9.5″
- Weight: 77.8 pounds
This Odyssey Group 31 battery earns our top spot for the best RV AGM battery because it balances cranking power and charge capacity. The cycle life is also noteworthy—it’s rated to last for up to two years at 77℉ without recharging.
Odyssey ODP-AGM24M Battery
- Rated Charge Capacity: 63 amp hours (20-hour rate)
- Cold Cranking Amps: 725
- Reserve Capacity: 155 minutes at 25 amps
- Dimensions: 10.9″ x 6.8″ x 8.8″
- Weight: 51.4 pounds
This Group 24 AGM RV battery is an ideal choice for small to mid-sized RV owners. Although its charge capacity is lower, it still delivers excellent starting power and a more manageable weight. The value is wonderful if you don’t need that added charge capacity, and it boasts added longevity compared to conventional marine/RV batteries.
Roadhawk 31M AGM Dual-Purpose Battery
- Rated Charge Capacity: 105 amp hours (20-hour rate)
- Cold Cranking Amps: 800
- Reserve Capacity: 200 minutes at 25 amps
- Dimensions: 13″ x 6.75″ x 9.325″
- Weight: 67.5 pounds
Although not considered a premium option, this Roadhawk AGM battery delivers higher charge and reserve capacities than those above. Higher cold cranking amps are another benefit, and this battery is priced between the two options above.
Other Top RV AGM Battery Models
Best Flooded RV Battery
Check out these picks for the best flooded lead-acid RV battery.
Interstate Group 24M Marine/RV Deep Cycle Battery
- Rated Charge Capacity: 81 amp hours
- Cold Cranking Amps: 550
- Reserve Capacity: 140 minutes at 25 amps
- Dimensions: 11″ x 6.875″ x 9″
- Weight: 46.3 pounds
Our pick for the best deep-cycle RV battery of the flooded variety offers excellent value. You get solid starting power and reasonable reserve capacity for camper accessories. If you choose the enhanced flooded battery option and maintain it properly, this battery tends to perform better than other standard flooded options.
Roadhawk 24 Series Marine Battery
- Rated Charge Capacity: 65 amp hours
- Cold Cranking Amps: 550
- Reserve Capacity: 130 minutes at 25 amps
- Dimensions: 10.75″ x 6.75″ x 9.375″
- Weight: 42.5 pounds
Although the charge capacity rating is slightly lower than that of some Interstate competitors, this Roadhawk battery still delivers good reserve capacity and durable construction. Roadhawk also has a strong reputation for reliability.
Interstate Group 27DC Battery
- Rated Charge Capacity: 88 amp hours
- Cold Cranking Amps: 600
- Reserve Capacity: 160 minutes at 25 amps
- Dimensions: 12.75″ x 6.875″ x 9″
- Weight: ~50 pounds
This battery still offers excellent Interstate reliability with added reserve capacity. It’s ideal for motorhome owners who require extra starting power, but it is slightly heavier and pricier than other options.
Honorable Mentions
- Electric World Group 24M Deep Cycle Battery
- Interstate Enhanced Flooded Battery
- Roadhawk Group 31 Deep Cycle Flooded Battery
Best Lithium Battery for RVs
If you’re looking for a lithium battery upgrade, here are some of our top options.
Xantrex 12V 240Ah Battery
- Rated Charge Capacity: 240 amp hours
- Rated Energy Capacity: 3,072 watt hours
- Cycle Life: Up to 6,000 cycles
- Dimensions: 19.7″ x 7.1″ x 10.3″
- Weight: 69.4 pounds
This Xantrex battery takes our top spot for the best lithium RV battery due to its exceptional cycle life and excellent charge capacity. Plus, it retains a lighter, more compact design than many competitors. If you want a lithium battery that will keep your RV performing on long boondocking days, this is an exceptional option.
Expion360 368Ah e360 Battery
- Rated Charge Capacity: 368 amp hours
- Rated Energy Capacity: 4,710 watt hours
- Cycle Life: Up to 4,000 cycles at 100% DoD
- Dimensions: 14.8″ x 13″ x 10.4″
- Weight: 100.4 pounds
This Expion360 LiFePO4 battery delivers advanced lithium performance with low maintenance requirements. It boasts an integrated battery management system (BMS), a high temperature tolerance, and fast charging capability. The primary downsides are space and weight, but if you have the room and cargo capacity, it’s an excellent choice for heavy loads or extended off-grid use.
Go Power! Sun Cycle 100Ah Lithium RV Battery
- Rated Charge Capacity: 100 amp hours
- Cycle Life: Up to 1,500 cycles at 100% DoD
- Dimensions: 12.9″ x 7″ x 9.2″
- Weight: 36 pounds
Our last lithium RV battery from Go Power makes the list for its excellent value. It offers solid charge capacity, a good cycle life, and an impressive 10-year warranty. Overall, you’d categorize it as a mid-range performer, but at a more affordable price.
Other Top-Rated Lithium RV Batteries
Best 6 Volt RV Battery Options
Check out these options for the best 6V RV battery if you prefer a smaller battery size:
Go Power! 6-Volt Sun Cycle Battery
- Rated Charge Capacity: 224 amp hours (20-hour rate)
- Dimensions: 10.24″ x 7.09″ x 9.72″
- Weight: 67.25 pounds
This Go Power battery is the best 6V RV battery due to its extended longevity and sealed AGM design, significantly reducing maintenance requirements. It also delivers solid temperature tolerance for extended-season camping and is designed for use in RVs with solar panels. The downsides are its higher cost and added weight.
Trojan Signature GC2 Deep Cycle 6V RV Battery
- Rated Charge Capacity: 225 amp hours (20-hour rate)
- Reserve Capacity: 447 minutes at 25 amps
- Dimensions: 10.3″ x 7.13″ x 11.15″
- Weight: 62 pounds
The Trojan battery name has a stellar reputation in the RV and golf cart battery industry. Particularly, this T-105 6-volt RV battery delivers great amp-hour capacity, proven durability, and a solid lifespan with proper maintenance. As with all flooded batteries, the added maintenance is the only downside.
Interstate GC2 Deep Cycle Extreme 6-Volt RV Battery
- Rated Charge Capacity: 225 amp hours (20-hour rate)
- Reserve Capacity: 447 minutes at 25 amps
- Dimensions: 10.3125″ x 7.125″ x 11″
- Weight: 62 pounds
Interstate batteries get a nod here for their brand reputation alone. However, this 6-volt battery also offers a solid amp-hour capacity and dependable performance. It’s also an excellent option for budget-conscious buyers, despite its flooded design requiring a bit more maintenance than other types.
Other Top 6-Volt Batteries for RVs
- Electric World GC220 Golf Cart Battery
- Continental EV 220Ah 6V Battery
- Roadhawk 6V Deep Cycle Battery
What About RV Battery Boxes?
RV battery boxes protect a battery (or batteries) from the elements. These boxes can sometimes crack and need to be replaced, but you may also need to upgrade. Most battery boxes for RV use are designed for one or two batteries. Sizes vary based on the battery group size—AKA dimensions—they’re intended to hold. Here are our top choices:
Camco Standard 24M RV Battery Box
- Fit: Group 24 Batteries
- Inside Dimensions: 7.25″ W x 10.75″ L x 8″ H (2″ additional room for battery terminals)
Camco’s standard RV battery box offers lightweight, heavy-duty, corrosion-resistant protection. Made of polypropylene and designed to USCG and ABYC specifications, it has handy features such as a lift-off lid, a durable woven hold-down strap, and foot clamps.
Camco Dual Battery Box
- Fit: Up to two 6V GC2 batteries or 12V 24/24M batteries
- Inside Dimensions: 21.5″ L x 7.4″ W x 11.2″ H
Camco’s dual battery box for RVs is an excellent choice for campers who want to expand their battery bank. It’s made of durable, heavy-duty, corrosion-resistant polypropylene—to USC specifications—and includes two straps and four clamps with screws.
Camco 6V Marine and RV Battery Box
- Fit: Single 6V RV Battery
- Inside Dimensions: 11″ L x 7.375″ W x 11.1875″ H
For RV owners who prefer smaller batteries, Camco also makes the perfect RV battery box for safely storing and protecting a 6V battery from collisions and contaminants. Also designed to USCG and ABYC specifications, it’s made with heavy-duty, corrosion-resistant polymer and includes a strap and two strap clamps with screws.
Use these additional resources for battery troubleshooting or replacement:
What questions do you have about finding the best RV battery? Let us know in the comments below.
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