SOLAR CHARGE CONTROLLER MPPT 30A Automatic voltage recognition system, compatible with 12V/24V systems. Equipped with an LCD display and a user-friendly interface with two control buttons. Comprehensive configuration and setting options for system setup. Selectable load control modes, including timer function suitable for street lighting applications. Efficient discharge control to protect battery performance. System operation storage function: records total operating time, error counts during operation, and number of full charge cycles. Built-in 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. Designed with solar panel, battery, and controller positive terminals connected together; negative MOSFET used in circuit design. TECHNICAL SPECIFICATIONS: - Current Rating: 30A (also available in 50A and 70A options) - Rated Voltage: 12/24V auto-detect - USB Output: 2.4A x 2 - Overcharge Voltage: 13.7V (for 12V), 27.4V (for 24V) - Low Voltage Disconnect: 10.511V (for 12V), 2122V (for 24V) - Temperature Compensation: -3mV/C per cell - Quiescent Current: