the data sheet for miniBMS contains the following lines:
"Temp or OVP (red): Charger output free floating (due to cell over temperature (>50°C), cell under temperature (<5 °C) or cell over voltage)."
I could not find a reference to Charge Disconnect at temperatures <5° anywhere else in either the miniBMS manual, VE Bus BMS or BMS 12/200 datasheet or manual. All seem to refer to over temperature only.
On the other hand Li Smart Batteries have an App setting "Allowed to charge minimum temperature". I assume this will cause the battery to indicate a temperature issue to the BMS, which in turn will trigger charge disconnect no matter whether temperature is too high or too low. Can anybody confirm this? For BMS 12/200, does this then disable charging via the LB port too?