CN3791 6v MPPT Solar Panel Regulator Controller Charger For Lithium Battery

CN3791 6v MPPT is a lithium battery charging module. This is a solar charger for maximum power point tracking (MPPT) of single-cell lithium batteries.
You can obtain as much electricity as possible from solar panels or other photovoltaic devices and load it into rechargeable lithium batteries.
 It is straightforward to use. Just insert the solar panel into one side of the solar charger, then insert the battery into the other side, and you can start charging.

Feature:

• Solar chargers are equipped with a CN3791 power tracking battery charging circuit and are pre-installed with four 2-pin JST/PH2.0 connection ports.
• The input voltage is 6V, which corresponds to the working voltage of the solar panel 6V, which is very suitable for applications where the voltage difference between the input voltage and the battery voltage is significant.
• 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. The user does not need to consider the worst-case and can maximize the output power of the solar panel, which is very suitable for applications that use solar panels for power supply.
• An external resistor can set the constant current charging current.
• Trickle charge a deeply discharged battery.
• Soft start function with battery terminal overvoltage protection.
• Equipped with charging status and charging end status indicators, and the functional status can be seen.

Parameter:

• Input Voltage: DC 6V
• Charging Current:2A
• PWM Switching Frequency:300KHz
• Constant Voltage Charging Voltage:4.2V
• Interface:2pin PH2.0/JST
• Work Temperature:-25℃~85℃
• Work Humidity:5%~95%RH
• Size:45*20*9mm

How to choose a solar panel :

This table shows the solar system configuration relationship between storage batteries and solar panels

Package List: 1 x CN3791 6v MPPT Solar Panel Regulator

Development  Resources: demo codes, schematics, datasheets, etc

Wiki: Solar cell panel

Wiki: MPPT

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Notes:

1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angles and display monitor.