@TheDragon (GivEnergy) Or anyone else explain this ?
I have been seeing one of my cells hitting 3.6v sometimes, and this seems to be erratic as to when it happens. So I have been watching the GivTCP values pretty closely.
Now I assumed that all of the battery voltage/ charge control was done by the BMS, and its firmware.
However looking back at old data, My inverter/battery have gone through:
906 + 3009 + Calibration - 7/3/23 (commissioning)
906 + 3012 + Calibration - 13/5/23 (portal)
909 + 3012 30/5/23 <-- Apparent step change in Battery Voltage and Cell variation
911 + 3013 12/7/23
911 +3013 + Calibration 20/7/23 ( help desk my request)
And the higher voltage for the battery, and the variation in cell voltages ( Caused by this ? ). Seem to have started when the inverter firmware moved from 906 to 909, not when the Battery firmware was updated, or when a calibration was run. There is an obvious increase in reported battery voltage 906 to 909, and its only after that I see significant cell variation.
