I currently have 2 x Kstar KSE4000 hybrid inverters running in single phase from the same supply through 2 x ezmeters.. The backup supply from each of the inverters feeds two halves of my fuse box (seperate supply per inverter). The main output from the inverter goes straight into the standard...
Both battery cables are the same length, both 50mm2 and going through the same trip switches to a single buss bar.. The lengths of the cables to each bank of 4 batteries is varying lengths, but as they all terminate at the same buss bar that should not make a difference I would have thought...