... selection5. PWM stepless unloading mode, which burn the excess power in dump load, making the battery charging in the best ... and time-control 5 hours)Control ModePWMDisplay ModeLCDDisplay ParametersWind Turbine Power,Wind Turbine Voltage,Wind Turbine Current,PV Voltage,PV ... Charge Current,PV Power, Battery Voltage,Ove-Voltage,Under-Voltage, Over-load, short ...