This 30A charge controller is compatible with 12V 24V system. Fully 4-stage PWM charging (Boost, ABS, Equalization, Float), the power MOSFET is used as an electronic switch without any mechanical switches and equipped with an industrial-grade STM 8 microprocessor to extend your battery life cycle. Charging and discharging parameter of PV/Battery/Charge backlit LCD display. Dual USB can give your electronic product a maximum of 5V 2.5A. This solar controller is suitable for lithium-ion/lithium iron phosphate/lead-acid batteries (OPEN, AGM, GEL ) with multiple load timers (load must be DC). It has a wide range of applicability and automatically identifies day/night. To protect your battery life, once the battery voltage drops below 8V, the solar controller will automatically shut down. PWM Charge Controller Protection: Dual MOSFET Reverse Current /overheat/undervoltage discharge discharge/short circuit/open circuit/overload/overload protection.safer for home, industry, commerce etc. This controller is suitable for 3 battery types Battery type B1 is lead-acid battery(12V/24V auto) B2 is lithium-ion battery( 3 strings of 11.1V lithium batteries) Factory default setting B2 B3 is lithium iron phosphate battery(4 strings of 12.8V) System voltage: 12V/24V automatic Charging current:30A Maximum input power and voltage:360W/24V(12V system); 720W/48V (24V system) USB output: dual USB output, 5V/2.5A Equalization: 12.6V(default)/Discharge reconnect voltage: 10 ,5V(default)/Discharge stop voltage:9(default) Turn on/off light voltage:solar panel 8V Self-consumption: Eight PWM Charge Controller Protections Dual MOSFET Reverse Current Overheat Protection Under-discharge Protection voltage Short circuit protection Open circuit protection Overload protection Overload protection Power off memory protection Intelligent solar controller The product can automatically manage the operation of the solar panel and battery in the solar system.For protect the duration of life of your battery, once the battery voltage drops below 8V, the solar controller will automatically shut down (LCD will be unavailable at the same time) Connecting the controller system solar 1.Connect the battery to the charge regulator-plus and minus 2.Connect the photovoltaic module to the regulator-plus and minus 3. Connect the consumer to the charge regulator-plus and minus. NOTE: The reverse order applies when uninstalling Incorrect sequence order may damage the controller