High-Power Energy To Explore
When your journey involves countless miles or remote campsites, you need a trustworthy battery that won’t hold you back. Lightweight RELiON lithium iron phosphate (LiFePO4) batteries are maintenance-free, fast-charging and environmentally-friendly to provide reliable power and peace of mind while you enjoy some well-earned peace and quiet.
View All RV Lithium BatteriesRELiON lithium batteries allow you to use 100% of their capacity, regardless of the rate of discharge. So, run all your electronics and know that you have ample reserves, even when you’re boondocking.
RELiON lithium batteries provide up to 10 times longer life than lead-acid batteries, and they still provide 80% of rated capacity after 2,000 cycles.
Partial charging does not affect performance quality or battery life. A low self-discharge rate means worry-free storage so even occasional users can be assured of reliable performance.
RELiON lithium batteries are available in a variety of BCI standard sizes for easy drop-in replacement.
Plug, play, and charge. No watering.
Full power available throughout discharge. Voltage does not drop like lead-acid.
Reduce your RV’s weight and increase fuel efficiency with RELiON lithium batteries—up to 50% lighter than lead-acid batteries, making travel easier and more efficient.
Built with lithium iron phosphate (LiFePO4), RELiON batteries offer the safest, most stable chemistry available—no risk of thermal runaway or dangerous leaks.
InSight 12V 120Ah Lithium RV Battery
$1,199.95
The InSight Series® 12V is a GC2 sized battery that delivers efficient, long-lasting lithium power for your RV’s house system. With advanced LiFePO4 technology, built-in BMS, and parallel connectivity, it ensures reliable performance, faster charging, and extended run times—so you can stay off-grid longer with confidence.
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InSight 12V-LT 120Ah Low Temperature Lithium Battery
$1,249.95
Designed for cold-weather adventures, the InSight 12V-LT battery can operate and charge in temperatures as low as -4°F (-20°C). Featuring advanced LiFePO4 technology and a built-in BMS, it ensures safe, reliable performance, fast charging, and extended run times—making it the perfect solution for off-grid power in freezing conditions.
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RB100 12V 100Ah LiFePO4 Battery
$899.95
The RB100 is the perfect lithium battery for RVers looking for dependable, long-lasting power. With 100Ah of capacity, it provides steady energy for your appliances, lights, and electronics, ensuring you stay powered whether you're off-grid or at a campsite. Lightweight, maintenance-free, and built with safe LiFePO4 chemistry, the RB100 delivers superior performance and peace of mind on every journey.
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RB300 12V 300Ah LiFePO4 Battery
$2,499.95
The RB300 delivers exceptional 12V power for your RV’s house system, providing reliable, long-lasting energy for lights, appliances, and electronics. With advanced LiFePO4 technology, fast charging, and high-capacity performance, it ensures you stay powered up longer, whether you're exploring off-grid or on the road.
Find Out MoreRV Lithium Battery Upgrade for Boondocking
RELiON Lithium Batteries for Your RV Adventures
Customer Success Stories
"In a truck camper, weight matters a great deal. My two, 100 Ah lithium batteries are half the weight of the lead-acid batteries with twice the power since I can use them down to around 10% or more of their capacity as opposed to 50% capacity on the lead-acid batteries. If I were to recommend RELiON batteries to a close friend, I would say that they're a good, safe bet that are far superior to any lead-acid/AGM batteries. We would never switch to another battery!"
- Anne Marie L.
"The RELiON batteries have a solid warranty and a stellar Battery Management System (BMS). Especially compared to lead acid batteries, which I’ve used in the past, the RELiON batteries are much lighter, which is crucial given van weight limitations. In addition to being very lightweight, they also come in a range of different, highly compact, sizes. They also use the safest battery chemistry: lithium iron phosphate, which is key if you’re sleeping next to them.”
– Jarrod Tocci