Charging up another 2 of the new units with the V3 'YTT' version of BMS.
Passive balancing will only start above 3500 mV but these BMS's go into alarm at 56V so it's a fine line. Charging at 55.85V which is just below 56V on the BMS.
Once the current declined to less than 0.5A per pack I just left it.. Still balancing and taking in 10W or so per pack.
Let's set how long it takes to get down to a 20mV delta. The delta at start of balancing was over 100 mV.
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