HiLetgo CN3791 Solar Charge Controller Board MPPT 1 Cell LiPo Battery Charge 12V Solar Panel Charger Regulator Control Module JST PH2.0 Auto Recharge for Battery with Cables

Description

Description:
Trickle charging of deeply discharged batteries.
Automatic charging, 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 versions 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 DC switch mode – DC converter to realize MPPT function, keep the output voltage and charging current product maximum (output).
Parameter:
Input voltage: 12 V.
Output voltage: nominal 3.7 V full charge voltage 4.2 V lithium battery.
Interface: 2-pin JST connectors (gold PH2.0).
Max charging current: 2A.
PWM switching frequency: 300 kHz.
Charging voltage: 4.2 V ± 1%.
Working environment temperature: -40°C to +85°C.
Size: 45 x 20 x 9.5 mm.
Package includes:
1 x CN3791 Solar Charge Controller Board 1 Cell Lithium Battery Charge Module