Feature 1MPPT Design: Significantly improve the energy efficiency of the system, and the charging efficiency is 30% higher than that of the PWM method, effectively provide you with more convenience. 2High Performance: Locate better working point of the IV curve at a high speed, faster response and higher tracking efficiency. The MPPT tracking efficiency is as high as 99.9%, and the circuit energy conversion efficiency is as high as 98%. 3Comprehensive Electronic Protection Function: Battery reverse connection protection, PV reverse connection protection, PV short circuit protection, charging overcurrent protection. 4Support for Modbus Protocol: Meet the communication needs of a variety of environments and occasions. Solar energy systems such as households, power stations, offgrid, base stations, RVs, yachts, ships, etc. can be used. 5Data Viewing: You can connect an external LCD screen (not included) or Bluetooth module (not included) to view the operating data and status of the device, and support to modify the controller parameters. 6Builtin Temperature Detection: Through derating charging, no fan is needed, and stable operation is still maintained under extreme temperature environments. Support a variety of batteries, users can customize charging parameters. 7Current Limiting Charging: When the power of the solar panel is too large and the charging current is higher than the rated value, the controller automatically reduces the charging power to make the solar panel work at the rated charging current.Item Type: Solar Charge ControllerMaterial: ABSCharging Type: MPPTRated Voltage: DC 12V/24V AUTORated Current: 30APV Power: 400W/12V; 800W/24VNo-Load Loss: <10mAhBattery Working Voltage: 9V-32VMaximum PV Open Circuit Voltage: 92V (25); 100V (minimum ambient temperature)Maximum Power Point Voltage Range: (Battery Voltage +2V) - 72VCharging Conversion Efficiency: 98%MPPT Tracking Efficiency: >99%Temperature Compensation Coefficient: -3mv//2V (default value); lithium battery has no temperature compensationWorking Temperature: -35 to +45Protection Level: IP32Communication Method: TTL serial communicationAltitude: 3000MApplication: Solar energy systems such as households, power stations, off-grid, base stations, RVs, yachts, ships, etc. can be used. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Solar Charge Controller1 x ManualNoteAn external LCD screen can be connected, and the LCD screen needs to be purchased separately.