Second element?
Lithium Battery Heater w/Automatic Thermostat Control
Battery Accessories
At what temperatures should I consider getting a 2 element battery warmer? I have 3 (possibly 4) LiTime Group 31 batteries. Recently temperatures dropped below 10 and I expect to do even colder RV’ing.
Status:
Open Jan 27, 2026 - 08:19 PM
1answer
Answer
Jan 27, 2026 - 08:19 PM
Taking into consideration that the Group 31 is a large battery, and those are very cold temperatures for a lithium battery, I would definitely recommend a second element in your situation. Also keep in mind that increasing the wattage won't help much if the heat simply escapes into the air. The jackets help a lot, but having the batteries in an insulated enclosure or box will ensure that the heat generated is being retained for good use.
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