@syseng68k
5) It's also not clear if electronic cell balancing is being done, though there are
probably enough wires to and from the cells to the pcb's, to do this.
Clear to me, two PCB's for exactly that purpose in the box. The upper for control and monitoring. The lower for balancing.
Does not seem to work as needed though, if it does, I would start looking for a hidden bypass somewhere powering the batteries.
Still, the monitoring should see and log all abnormal conditions and fire off warnings before batteries fail.