Description:

Trickle charging of deeply discharged batteries.

Automatic recharge, Battery overvoltage protection.

Charge status and charge end status indication.

Solar panel maximum power point tracking.

Complete charge management for single-cell lithium batteries.

The output of the Solar Charger is intended to charge a single polymer lithium ion cell.

The load should be connected in parallel with the battery. Each Solar Charger comes equipped with a CN3791 power tracking battery charging circuit and pre-installed four 2-pin JST/PH2.0 connectors. Default we have set the holding voltage for MPPT.

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).

Features:

Input voltage: 6V

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

Interface: 2-pin JST connectors (or PH2.0)

Max Charging current: 2A

PWM switching frequency: 300KHz

Charging voltage: 4.2V ± 1%

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

Size: 45X20X9.5mm

Kit include:

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