i have a bank of 8 AGM batteries providing 48v and 500Ah. I recently put in place a BMV in order to check their charge level, but I'm unable to automatically detect 100% of charge.
According to the manual the parameters that should be set in order to detect fully charged are these:
- Charged Voltage (Vc) currently set at 57.3v
- Tail Current (lt) currently set at 4.0
- Charged detection time (Tcd) currently set at 3 mins.
but SoC remains at 95% and most of times it never sets 100%. I check the battery voltage and at the end of the 9 hours absortion phase stays above Vc value (first screenshot) but it doesn't change to 100% SOC.