Features High efficient, PWM controller PWM charging makes the charging efficiency increase by 3% to 6% Reverse polarity & high/low voltage battery protection Output current & short circuit protection USB charging functional(option) ON/OFF load switch at front of controller for convenience Intuitionistic LED indicators show battery capacity , charging and discharging state of the battery LCD display shows system status at all times Working parameters and battery type can be set Automatic Identification System Voltage Level Automatic Temperature Compensation Accumulated function of charge and discharge Ampere hours Remote monitoring and control function(custom) Battery reverse-discharge protection, Overload, Short Circuit protection, Battery reverse-connection protection Model SF80D /SF80 Rated Voltage 12V/24V Rated Current 80A Max PV Voltage 100V Max PV Input Power 4160W(48V)