What would be reasonable voltage drops with battery cables ~1m 90mm² and 2m,3m 70mm² for cables to the inverters?
I just measured on PLUS -14,5mV from battery=>busbar and -95mV from busbar=>inverter under 10kW load.
On the forum 1,2V (2,5%) maximum allowed voltage drop is often mentioned , so with my 14,5+95mV=~0,11V I would be very far away from this limit.
Accidentially, this was measured in a partial-load scenario - so I now remeasured under proper conditions below.