@740GLE SOC is taken from the JK BMS (non-inverter older one).But how is SOC calculated just the charger? Or via a shunt?
I guess if the cells were at resting voltage of more like 3.35-3.4v then a load applied it’d be interesting to see what the sag was.
Here is a view after a charge to 3.45v per cell, followed by a few minutes by a 10a load then a 30a load applied. Interested to know what you're thinking.