From a slightly different perspective. I also have a King II in parallel mode. The maximum current is set by the BMS at 90 A (this can be set in the Seplos BMS). The problem is that when any solar power is available, the inverter does not charge from the grid unless I disconnect the solar string (or night ). It is normal? I have SLB UCB set primarily, but it doesn't work even in the second configuration that supports external charging. Otherwise SBU mode. Thank you
* 3.5 kW from PV and about 63 A to battery (31.5 A to 1st batt and 31.5 A to 2nd batt)