BMS aggressive charging of 2x Sunsynk 5kwh batteries and high voltage drop down to 99% SOC
I noticed that the charging of the batteries of my newly installed system (5KW Sunsynk Inverter and 2x 5kwh Sunsynk batteries in parallel) seems a bit aggressive. The charging curve does not gradually decline as it charges the batteries up to 56,0V (100% SOC).
There after when charging completed it drops down to 55,5V ( 99% SOC) and then stays on 99% until the next load on the batteries occur. It seems to consistently charge at 37A, about 2000W right up until it reaches 56,0V and then stops.
Below shows the behavior.
100% SOC After charge completed:
Drops to 99% SOC a while after charge completed:
I would have expected it to slowly decrease the amps as it nears 95-100% and then only charge to about 55.5V.
Does anyone else see this behavior or can explain this and is this something to be worried about or is it normal?
Below battery settings.
My Battery charges at constant power [what I have set 3000W] to SoC selected [I set 93% for GRID night charge] and at 55.5V to 56V. GSL Battery.