Feature:1. MPPT TECHNOLOGY: MPPT technology is adopted for quickly and accurately tracking the maximum power point of solar cell in any environment, obtaining maximum energy in real time, significantly improve the energy utilization.2. WIDE COMPATIBILITY: The controller supports full power charging and discharging at the same time, support a variety of battery types such as sealing, gel, opening, lithium battery and customization.3. PROTOCOL COMMUNICATION: Allow to save 300 consecutive days of historical data. Support RS485 communication of standard protocol, with adjustable baud rate, and TTL communication with fixed baud rate.4. COMPLETE PROTECTIONS: With complete charging and discharging protections for overvoltage, overcurrent, overload, over temperature, short circuit, etc.5. RELIABLE OPERATION: Aluminum heat sink and high temperature derating treatment ensure reliable and efficient operation under various working environments.6. AUTOMATIC ADJUSTMENT: Adjust parameters due to different conditions, making the system always near the maximum working point. The whole process is completely automatic, no need any adjustment by the user.7. WIDELY USE: Widely used in solar off grid PV system, to manage solar panels, batteries and loads. With perfect software, hardware fault detection and protection functions, avoid the damage of components caused by installation errors and system faults.Specification:Item Type: MPPT Solar Charge ControllerMaterial: Aluminum alloy, PCVoltage: 12V 24V (automatic)Battery Type: USE FLD GEL LI SLD (default)Static Power Consumption: 40mAWorking Voltage Range of Storage Battery: 8-32VRated Charging Current: 40AMaximum PV Input Current: 35AMaximum Solar Panel Power: 520W (12V), 1040W (24V)PV Maximum Open Circuit Voltage: 150VMPPT Working Voltage Point Range: (Battery voltage+2) to 110VMPPT Tracking Efficiency: >99%Charging Conversion Efficiency: 85% to 98% (10% to 100% of rated power)Rated Load Current: 40ALoad Working Mode: Pure optical control, optical time control, manual mode (default), debugging mode, normally openTTL Communication: Baud rate 9600kpsRS485 Communication: 1 x isolated RS485 communication port, power output 5V200mA, baud rate 9600kps by default, adjustableHistorical Data: Can store historical data of the last 300 daysBacklit Function: Light up when the key is operated, and turn off automatically after 20s of no operationProtection Functions: PV overvoltage protection, PV reverse connection protection, PV short circuit protection, night reverse charging protection, input power limiting protection, over temperature protection, load short circuit protection, load overload protection, battery overvoltage or over discharge protection, battery reverse connection protection, battery terminal short circuit protectionGrounding Type: Common negative pole design, negative pole groundingWorking Environment Temperature Range: -35 to 65 (no derating within 45 under good ventilation)Protection Grade: IP32Cooling Mode: Natural heat dissipation.Package List:1 x MPPT Solar Charge Controller1 x Temperature Sensor6 x Terminal1 x User ManualNote:1. As the applicable voltage of this controller exceeds the safety voltage of human body, please read the instructions carefully before operation and operate this controller only after the safety operation training is completed.2. There are no parts in the controller that need maintenance or repair. Users should not disassemble and repair the controller by themselves.3. Please install the controller indoors to avoid exposure of components and prevent water from entering the controller.4. Please install the controller in a well ventilated place. The temperature of the heat sink will be very high during operation.5. It is recommended to install a suitable fuse or circuit breaker outside the controller.6. Before installing and adjusting the wiring of the controller, be sure to disconnect the wiring of the photovoltaic array and the fuse or circuit breaker near the batteryterminal.7. After installation, check whether all line connections are tight to avoid the danger of heat accumulation due to virtual connection.