Description:

1.Trickle charging of deeply discharged batteries.
2.Automatic recharge, Battery over voltage protection.
3.Charge status and charge end status indication.
4.Solar panel maximum power point tracking.
5.Complete charge management for single-cell lithium batteries.
6.The output of the Solar Charger is intended to charge a single polymer lithium ion cell. 7.The load should be connected in parallel with the battery.

8.Each Solar Charger comes equipped with a CN3791 power tracking battery charging circuit and four 2-pin JST/PH2.0connectors. Default we have set the holding voltage for  MPPT.

9.So we have 3 version for the input voltage 6V/9V/12V(for Solar Panel working voltage 6V/9V/12V), very suitable for the application of the input voltage and battery voltage difference is bigger. In general, need to use a switch mode DC – DC converter to realize MPPT function, keep the output voltage and charging current product maximize (output).

Specification:

1.Input voltage: 12V
2.Output voltage: nominal 3.7V full charge voltage 4.2V lithium battery
3.Max Charging current: 2A
4.PWM switching frequency: 300KHz
5.Charging voltage: 4.2V ± 1%
6.Working environment temperature: -40 ° C to +85 ° C
7.Size: 45*20*9.5MM

Package Including: 

1* CN3791 Solar Charge Controller Board 1 Cell Lithium Battery Charge Module