 Generally keep the battery on full voltage condition.
 Prevent the battery from over-charging.
 Prevent the battery from over-discharging.
 Prevent supplying electricity from the battery to solar panels during nights.
 Reverse Polarity Protection for Battery
 Reverse Polarity Protection for Solar panels
 When the current of load exceeds the rated one of controller, the controller will turn into the self-protection state and is automatically locked up, the screen shows ?verload.
 Short Circuit happens; the Controller will turn into the self-protection state and is locked up, the screen show ?hort circuit.
 Low voltage happens to battery, the controller will automatically separate loads from system. When the voltage of battery goes up, the loads will automatically restart to work.
 Protection from the lightning strike
 When Controller is normally working, the LCD Screen will show New Charging Current (a dash-?efore the numeral) , Discharging Current and Voltage of battery every 5 seconds.
 Controller is always counting Charging Current Hours and Discharging Current Hours of the Battery
 When controller start up, according to the voltage level of battery, Controller will self-setup the Charging-off voltage, the Load-off voltage, the Load-on voltage. These datum is tacitly approved under the standard environment temperature 25 ℃ .
 According to varies system temperature, the controller will automatically compensate the temperature of the charging voltage.