Function:1. Always keep the battery on fill voltage condition.2. Prevent the battery from over-charging.3. Prevent the battery from over-discharging.4. Prevent the battery from reverse charging to solar panels during nights.5. Reverse Polarity Protection for Battery6. Reverse Polarity Protection for Solar Panels7. When the battery voltage is low, the controller will automatically cut off the load from the system. If the voltage of battery is back to normal and the load will restart working.8. Thunder protection9. According to the battery voltage grade, the controller can automatically set charge-off voltage, the load-off voltage, the load- restore voltage. (The parameter is default under 25? condition, locked by the CPU procedure, cannot adjust.)10. The controller will automatically compensate the temperature of the charging voltage according to the changes of ambient temperature.Specifications1. Rated voltage: 12/24V2. Rated current: 30/40/50/60/100A3. Max. PV input power: 750W(12V) / 1200W(24V)4.System voltage: 12 / 24V adaptive5.Rated charging current: 30A – 40A – 50A- 60A – 100A6.Rated discharge current: 10A – 20A – 20A – 30A – 30A7.Solar photovoltaic voltage :12V battery with 18V solar panel, 24V battery with 36V solar panel8.Full Voltage Value : Lithium Battery (12.2V) – B02 Colloidal Battery (14.2V) – B03 Open Cell (14.6V)9.Floating Charge Voltage : 13.7 V ( Default, Adjustable )10.Discharge cut-off voltage::10.7 V ( default, adjustable )11.Discharge recovery voltage: 12.6 V ( default, adjustable )12.Standby current :10mA13.USB Output : 5V / 2A MAX14.Operating temperature:- 35 – 60Package Includes?1 x Solar Panels Battery Charge Controller1 x User Manual