48V, 50A solar charge controller lcd display 1,solar controller with Parameter Changeable. 2,Gel, Sealed and Flooded batt Solar System Controller with ... battery, no need to reset the time after power failureHigh efficient Series PWM charging mode &state of charge ... Discharging, Over load , and short circuitReverse Polarity protection: Solar Module, BatteryLoad work mode: ON/OFF,Dusk to Dawn, ...