Feature:1. High Efficiency: Using MPPT maximum power tracking technology, the controller can quickly and accurately track the maximum power point of the solar cell, obtain the maximum energy of the solar panel in real time, and significantly improve the energy utilization of the solar system.2. Supporting Battery: Support full power charging and discharging at the same time. It supports a variety of battery types such as sealing, gel, opening, lithium battery and customization.3. Stable Signal: Support to save 300 consecutive days of historical data. Support RS485 communication of standard protocol, with adjustable baud rate. It also supports standard protocol TTL communication with fixed baud rate.4. Good Protection: Has perfect charging and discharging protection mechanisms for overvoltage, overcurrent, overload, over temperature, short circuit, etc. Aluminum radiator and high temperature derating treatment are adopted to ensure reliable and efficient operation under various working environments.5. Easy Adjusting: Due to different ambient temperature and lighting conditions, the maximum power point will often change. The MPPT controller can adjust parameters according to different conditions, so that the system is always near the maximum operating point. The whole process is completely automatic without any adjustment by the user.6. Broad Utility: Widely used in the solar off grid photovoltaic system to manage the work of solar panels, batteries and loads. It is the core control component of the off grid photovoltaic system. The controller has perfect software and hardware fault detection and protection functions, which can avoid the damage of product components caused by installation errors and system faults to the largest extent.Specification:Item Type: Solar Charge ControllerMaterial: Aluminum alloy, PC. Voltage: 12V, 24V, automatic. Battery Type: For US, FLD, GEL, LI, SLD, default. Static Power Consumption: 30mAWorking Voltage Range of Storage Battery: 8V-32VRated Charging Current: 30AMaximum PV Input Current: 27AMaximum Solar Panel power: 400W at 12V, 800W at 24V. PV maximum Open Circuit Voltage: 150VMPPT Working Voltage Point Range: Battery voltage+2 ~ 110VMPPT Tracking Efficiency: 99%Charging Conversion Efficiency: 85% - 98%, 10% - 100.0% of rated power. Rated Load Current: 30ALoad Working Mode: Pure optical control, optical time control, default manual mode, debugging mode, normally open. TTL Communication: Baud rate 9600kpsRS485 Communication: 1 isolated RS485 communication port, power output 5V200mA, baud rate 9600kps by default, adjustable. Historical Data: Can store historical data of the last 300 days. Backlight Function: Lights up when there are keys, and turns off automatically after 20s of no key operation. Protection 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, over discharge protection, battery reverse connection protection, battery terminal short circuit protection. Grounding Type: Common negative pole design, negative pole groundingWorking Environment Temperature Range: -35 ~ 65, no derating within 45 under good ventilation. Protection Grade: IP32Cooling Mode: Natural heat dissipation. .Package List:1 xSolar 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 battery terminal. 7. After installation, check whether all line connections are tight to avoid the danger of heat accumulation due to virtual connection.