Best 12V Lithium (LiFePO4) Batteries Ranked

For kayak trolling motors, fish finders and small solar kits where weight matters more than runtime.

For kayak anglers, ice fishing and small portable setups that need a light battery with a long warranty.

A tested, self-heating 100Ah battery with app monitoring, for RVs and solar setups that see winter charging. Priced well below most heated batteries.

The cheapest way to get self-heating in a Group 31 battery, for cold-weather RV and marine use. Independent testing confirms its rated capacity.

A good-value Group 31 drop-in for boats and RVs used in mild climates. Independent testing shows it delivers more than its rated 100Ah.

A cheap, IP65 Bluetooth 100Ah battery for RV, solar and marine use, from one of the larger storage-battery makers. Cold-climate users need a heated model instead.

For campers and small RV or van builds that need a compact, inexpensive 100Ah battery from a known brand. Choose a heated model if you charge below freezing.

For RVs and boats that want a large, heated, Bluetooth-monitored bank in one Group 31 case. It suits cold-weather users who would otherwise wire up three 100Ah batteries.

For RV and off-grid owners who want one large battery instead of a pair. It also has enough BMS current for a 2,000W inverter.

For off-grid and RV systems that need the most storage per inch. It holds 4 kWh in a compact case with Bluetooth monitoring.

For RV and van builds that want a large, low-cost bank in one box from a known brand. Cold-climate users should look at a heated battery instead.

For solar and RV setups with modest inverters that want the cheapest 200Ah. Pick a 200A-BMS model if you run a big inverter.