Lyman, others...
The size of those wires, carrying that much amperage??? Really? Powering an aircraft??
What is to bet the charging system wiring is used to heat the main cabin
If the batteries are that sensitive to differences, would not the individual wire length be of concern?
I see the bus bars, but what are those connected to?
Boeing just whored (hired)a new person to source the battery/charging aux power assemblies.