Lithium battery charging observations
I currently testing my 900AH lithium pack consisting of (20) 180AH CALB cells. I observed cell voltages vary depending where they are in the bank during charging. I'm using a 40 amp charger for my testing. The BMS eventually balances the cells out but it takes time. These cells were bottom balanced initially.
This tells me that my configuration/#number of cells require a settling period to accurately measure SOC and reach desired % of charge. If I depended on the automated cutouts, it would charge to a lower % SOC, after settling.