Solar Panel Controller CN3791 12V 3A Solar Power Manager Module 18650 Li Charging

Sensor BlocksProduct introduction:The maximum power point tracking (MPPT) of solar cell is to ensure that when the light intensity changes, the photovoltaic cell always outputs the maximum power to make full use of solar energy. In general, switching mode DC-DC converter is needed to realize MPPT function to maximize the product (output power) of output voltage and charging current. Cn3722 realizes maximum power point tracking function of photovoltaic cells by switching DC-DC conversion. The maximum input voltage can 28V, which is very suitable for applications with large difference between input voltage and voltage.Features of charging management board:1. High end technology MPPT solar maximum power tracking charging management chip, with trickle current, constant current, constant voltage charging management2. It adopts imported high frequency low conduction resistance double MOS transistor, high current diode, high efficiency flat high power inductor and alloy current detection resistance3. Large aluminum heat sink at the bottom to ensure long-term stable operation under high current4. High speed and efficient charging mode5. Dual state indicator light: when the is not connected, the red light will flash and the green light will always be on; when charging, the red light will be on, and the green light will be on at the same time when the is fully chargedBasic parameters:Input voltage: nominal 18V solar panel (about 21V solar panel without load)Output voltage: nominal 12V (10.811.1v) full cut-off voltage 12.6V Li three series Li charging managementOutput current: maximum constant current 3A (charge current greater than 2a, please add heat dissipation)Connection mode: padIn + input positive, in input negative (solar)Bat + positive, Ba negative

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