Controlling battery heating/cooling

[Sasa Duric]

I am strugling to find a way to conrrol battery heating from the sbms0 and extio. amy temp limits are set, but how to configure extio to trigger by temp and not the SOC ad it is?

[Dacian Todea (electrodacus)]

Battery heating should be done by an external thermostat. I think a digital thermostat is maybe 10 to $20 and you set the temperature at around +10 or +15C

If battery is properly insulated the power consumption to maintain the battery at +15C will be super low. Below +15C the battery internal resistance starts to decrease very significantly.

The SBMS0 temperature limit is there to stop disconnect the battery if your heating fails and battery temperature drops below whatever limit you set.