Controlador de panel solar 3S MPPT CN3791 12V 3A Módulo administrador de energía solar Carga de batería de litio 18650

Product 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 buck DC-DC conversion. The maximum input voltage can reach 28V, which is very suitable for applications with large difference between input voltage and battery 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 management
2. It adopts imported high frequency low conduction resistance double MOS transistor, high current diode, high efficiency flat high power inductor and alloy current detection resistance
3. Large aluminum heat sink at the bottom to ensure long-term stable operation under high current
4. High speed and efficient charging mode
5. Dual state indicator light: when the battery 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 battery is fully charged
Basic 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 lithium battery three series lithium battery charging management
Output current: maximum constant current 3A (charge current greater than 2a, please add heat dissipation)
Connection mode: pad
In + input positive, in input negative (solar)