What exactly is MPPT?
Maximum Power Point Tracking (MPPT) is a new technology, which is an upgraded product of the traditional solar charge and discharge controller. Principle of MPPT To charge the battery, the output voltage of the solar panel must be higher than the current voltage of the battery. If the voltage of the solar panel is lower than the voltage of the battery, the output current will be close to zero. Therefore, for safety reasons, when solar panels are manufactured, the peak voltage (Vpp) of solar panels is about 17V, which is set according to the standard when the ambient temperature is 25°C. When the weather is very hot, the peak voltage Vpp of the solar panel will drop to about 15V, but in cold weather, the peak voltage Vpp of the solar energy can reach 18V. Let's go back and compare the difference between the MPPT solar controller and the traditional solar controller. The traditional solar charge and discharge controller is a bit like a manual gearbox. When the engine speed increases...