SOLAR CHARGE CONTROLLER MPPT 30A Automatic voltage recognition system supports 12V/24V systems. LCD display with user-friendly interface and two-button control for easy operation. Configurable settings allow customization of system parameters. Selectable load control modes with timer function, suitable for applications such as outdoor lighting. Efficient discharge control to optimize battery performance. System monitoring functions include total operating time, error counter tracking, and full charge cycle recording. Comprehensive protection features: surge protection, short circuit protection, overload protection, overcharge protection, and over-discharge protection. Accurate temperature compensation automatically adjusts charging and discharging voltages to extend battery life. Reverse polarity protection included. Negative MOSFET design connects solar panel, battery, and controller positive terminals together. Technical Specifications: Rated Current: 30A (also available in 50A and 70A options) Rated Voltage: 12/24V auto-detect USB Output: 2.4A × 2 Overcharge Voltage: 13.7V (×2 for 24V system) Low Voltage Disconnect: 10.5–11V (×2 for 24V system) Temperature Compensation: -3mV/°C per cell Quiescent Current: <45mA Circuit Voltage Drop: <200mV Display Type: LCD Charging Method: MPPT Waterproof Rating: IP32 Material: Plastic Color: Black + Orange Dimensions: 17.5 × 14 × 4 cm (6.9 × 5.5 × 1.6 inches) Weight: 480g – 1284g Package Includes: 1 × Solar Charge Controller 1 × User Manual Controller Functions: Protects against overcharge and overvoltage conditions. Automatically disconnects output when battery voltage is too low. Reconnects when battery is recharged to 12.6V (reconnection voltage). Normal operating voltage range: 10.7V to 13.7V (adjustable). To adjust float voltage to 13.7V: Press and hold the MCU button for 3–4 seconds to enter menu, use up button to set desired voltage, then press MCU button again to save settings when display stabilizes.