Solar Charger Board, Auto Charging Solar Charger Controller Board CN3791 MPPT 3.7V 4.2V Lithium Battery Charger Module 6V PCB Material Solar Panel

Main Function: The MPPT solar charger transfers power from solar panels or other photovoltaic devices to rechargeable batteries. It can provide balanced charging and discharging to extend battery life and prevent overcharging or overdischarging. Stable Charging: Using the maximum power point tracking function of the solar panel, the solar charger board can manage the complete charging of a single Li-ion battery. It improves the performance and reliability of the panel with fast response time, which can provide stable and efficient protection for your battery. Multiple Functions: The constant current charging current set by external resistor; trickle charging for deeply discharged batteries; automatic charging function. Improve the efficiency of solar charging to ensure that your batteries are effectively charged and reduce workload. Easy to Use: Insert the solar panel into one side of the solar charger and then insert the battery into the other side to start charging. It can quickly set up a solar charging system, which is your reliable battery charging solution. Charging Details: Charging current up to 2A; PWM switching frequency 300KHz; constant voltage charging voltage 4.2V ± 1%. Please note that charging at a suitable current will ensure a relatively long service life of this solar charger.

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