All of the LiFEPO4 batteries need to be kept above 0C/32F, while charging. [0] Mine doesn't have an internal heater, so I make sure to keep it disconnected fro

All of the LiFEPO4 batteries need to be kept above 0C/32F, while charging. [0] Mine doesn't have an internal heater, so I make sure to keep it disconnected from the solar panels when it is cold out. I live in a warm weather area so it was worth the cost difference for me at the time. Worst case, I can just get a simple 12v heating pad for it. [0] https://www.relionbattery.com/knowledge/how-do-lifepo4-batteries-perform-in-cold-temperatures https://www.relionbattery.com/knowledge/how-do-lifepo4-batte...