I have a system with Victron Smart lithium batteries, BMV-712 Smart with BMV temp sensor and VE.Bus for BMS. My low temperature charge disconnect signal comes directly from the battery internal temp reading to the VE.Bus BMS and then to various charging devices where the charging is disabled. My BMV temperature (from temp sensor connected to battery terminal) is always 6 to 8 degrees (F) higher than any of my smart battery temps (as viewed in the Victron Connect App individually for each battery).
I have two questions, is this kind of temperature variance normal? And is there any way to either calibrate the BMV temperature sensor to better match the internal battery temperature or to have my BMV-712 (and CCGX) actually use the same internal battery temperature that's fed to the VE.Bus BMS?
