I recently installed a solar system with 3KW of PV panels and a Axpert SOL-I-AX-5P64 INVERTER and 2 x 3KWP Schubart LiFe batteries.
There are very vague specifications available for these batteries and I am wanting to find out the best settings for the charge and float voltages.
I have it set up as 30 A max charging current, with 54.8 V CV and float voltage of 53.2 V with a 44.2 V cut-off.
The system has now twice shut down completely with a tracked voltage of 47 V when cutting out and loosing communication with the WatchPower software despite the software showing the 44.2 V as the cut off.
There are no specs wrt the number of cells and their layout or what BMS system/control is installed.
Any information available through this forum?
