【Multifunction】The MPPT controller can detect the voltage generated by the solar panel in real time and track the highest voltage and current values (VI), allowing the system to charge the battery with maximum output power. 【Automatic Detection】Automatically detects the system voltage, automatically identifies 12 or 24 V, records the total system operating time, records the error counter during operation, and records the battery's full charge time. 【Safety】MPPT solar panel controllers are safe and provide reliable protection against overvoltage, short circuit, overload, overvoltage, and over-discharge to extend battery life and improve system performance. 【Intelligent Charging】Intelligent and efficient Level 3 MPPT charging mode. Record the total system operating time, Record the error counter during operation, record the time of a fully charged battery, accurately compensate for temperature, automatically correct the charging and discharging voltage, and improve battery life.