Best Self-Heating 12V Lithium Batteries

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.

For boat and RV owners who charge below freezing and want a Group 24 battery with heating and Bluetooth built in. You pay a premium over budget brands for the heater, the app and the longer warranty.

For RVers and boaters who charge in sub-freezing weather. The built-in heater and Bluetooth monitoring justify the premium over the standard model.

For 12 V RV, van and boat owners who charge in cold weather and want heating and Bluetooth in one sealed battery. Skip it if you need a 24 V or 48 V series bank.

For cold-climate RV owners who already run Battle Born batteries and want a matching heated unit. New buyers can get heating for much less from other brands.

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 van owners who camp in freezing weather and want one large, serviceable battery with a long warranty. The heater lets it charge below freezing without damage.

For large RV and marine banks that want one heated 270Ah battery from a US maker and can handle the weight and cost.