Solar Charging Module, CN3791 MPPT Battery Charge Controller, LiPo Cell, 12V Battery Charger

Product Description

Solar Charging: This MPPT solar charger board allows you to transfer power from solar panels or other photovoltaic devices to rechargeable batteries.

Easy to Use: Insert the solar panel into one side of the solar charger, then connect the battery to the other side to start charging. Designed for lithium batteries.

Stable Operation: The constant charging current is set by an external resistor. Supports charging of deeply discharged batteries. Automatic charging function included.

Parameters:

• Charging current up to 2A

• PWM switching frequency: 300 kHz

• Constant voltage charging: 4.2 V ± 1%

 Specifications

• Item type: Solar charging module

• Material: PCB

• Input voltage: Select the corresponding 12V module based on the rated voltage of the solar panel

• Output voltage: 3.7V nominal, 4.2V full voltage, for single-series lithium battery packs

• Connector: 2-pin PH2.0 / JST

 Features

1. Maximum Power Point Tracking (MPPT) function for solar panels

2. Complete charging management for a single lithium battery

3. Constant charging current set by external resistor

4. Trickle charging for deeply discharged batteries

5. Automatic recharge function

6. Charge status and end-of-charge indication

 Package List

• 1 × Solar charging module

• 2 × Connection cables