Good day, One of our customers had a 42 kWh battery installed and 3 Multiplus II 8000 with a Cerbo box. A phenomenon was detected at this facility. There is a huge discrepancy when it comes to battery consumption. See AC load.
I once looked at the tensions and there is also an enormous deviation there.
The system was not installed or set up by us. From the storage to the inverter there is a DC cable of approx. 12m per inverter. A bus bar is also installed and another 3m extends from there. Is this perhaps where the problem lies? Line length? Does anyone have a solution?