this is why

3 tons wrote:

SDcampowneroperator wrote:

LittleBill wrote:
this has been solved. they now sell bms's with heating options. When I make the switch they will be used in 0f unprotected temps.

Wont the heating option then use battery power?

No, the heating option is powered by the battery’s charging source.

3 tons

s/b able to wire it either way and still have low voltage stop the heating to protect the battery. Otherwise need to keep warm to keep the solar controller active. If low voltage turns everything off it waits in storage mode for a power source.