... -in-one unit in off grid solar power system which with battery bank. It is system integrating MPPT controller, Inverter, and Battery DC-DC ... power from PV panels will charger to battery, and when solar power is lacking, battery will make up the rest or ... of power supply of SMB is solar, grid and battery On-grid solar power system inverter with battery and charger controller 1000W-4800W MPPT