CN3791 3A 6V 9V 12V MPPT Solar Panel Controller 3.7V 4.2V Lithium Liion 1S Lithium Li-ion Battery Charge Control Module Charging

Completely independent design and developmentMPPT technology --- solar maximum power trackingSuitable for a nominal 3.7V full cut-off voltage 4.2V lithium battery3A high current smart trickle, constant current, constant voltage charging management board

Solar cell maximum power point tracking (MPPT)

The solar cell maximum power point tracking (MPPT) is to ensure that the photovoltaic cell always outputs the maximum power when the light intensity changes to make full use of the solar energy. In general, it is necessary to use a switch-mode DC-DC converter to realize the MPPT function to keep the product of output voltage and charging current (output power) maximized,The switch step-down mode DC-DC conversion method is adopted to realize the maximum power point tracking function of the photovoltaic cell. Its input voltage can reach up to 28V, which is very suitable for applications where the input voltage and the battery voltage are quite different.

Charging management board features:

1. High-end technology MPPT solar maximum power tracking charging management chip, with trickle, constant current, and constant voltage charging management2. Imported high frequency low conduction internal resistance double MOS tube, high current diode, high efficiency flat high power inductor, alloy current detection resistor3. The large aluminum heat sink at the bottom ensures long-term stable operation under high current4. High-speed and efficient charging method5. Dual status indicator lights, the red light flashes when the battery is not connected, the green light is always on, the red light is on when charging, it will stop when it is full and the green light is on at the same time