Renogy self heating LiFeO4 battery

FWC wrote:
The discharge low temperature limit is typically not a hard BMS limit (like the low temperature charge limit) and there is nothing that will physically damage the cells if you discharge below -20C. It is just that the cell manufacturers don't test below -20C because few customers care about that. Some do and actually show pretty good performance down to about -45C. They will loose capacity, but not nearly as much a lead acid batteries.