CN3791 MPPT solar panel solar charger 3.7V 4.2V lithium battery charging board module

Product Description

This module has three input voltages of 6V/9V/12V, corresponding to the operating voltage (nominal voltage) of the solar panel, which is 6V/9V/12V.

This MPPT solar charger allows you to extract as much electricity as possible from solar panels or other photovoltaic devices and pack it into a rechargeable lithium battery.

Product Features

Input voltage: Select the corresponding module based on the nominal voltage of the solar panel (6/9V/12V)

Output voltage: nominal 3.7V full charge termination voltage 4.2V lithium battery

Working environment temperature:- 40°C+85°C

When the current output capability of the input power supply decreases, the internal circuit of CN3791 can automatically track the maximum power point of the solar panel

Charging current can reach 2A

PWM switching frequency: 300KHz

Constant voltage charging voltage: 4.2V+1%

The constant current charging current is set by an external resistor

Perform trickle charging on batteries with deep discharge

The product has automatic recharging function and soft start function

When charging, the CH light (red light) will remain on and the 0K light will turn off (blue light); When fully charged, the CH light will flash and the OK light will remain on

Product Function

Product Size

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Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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