CN3761 Lithium Battery Charger Protection Board Module for 4.2V Solar Panel Regulated Charging

Specification Input voltage DC5V 15VWide voltage input compatible with CN3791 MPPT solar charger input voltage pre selection solar panel 6V 9V 12V can directly charge a single lithium battery Output voltage 3 7V full junction voltage 4 2V lithium battery single string lithium batteryCharging management interface SIP2 54 2PFeatures Complete charge management for single cell lithium batteriesThe charging current can reach 3A need to change the resistance and add heat sink the default is 1 2Amax PWM switching frequency 300KHzConstant voltage charging voltage 4 2V ± 1 Constant current charging current is set by external resistorTrickle charge a deeply discharged batteryAutomatic recharge functionCharge status and charge end status indicationSoft start functionBattery terminal overvoltage protectionWorking environment temperature 40 Celsius to 85 CelsiusColor GreenMaterial ABSSize 45 x 20 x 9 5mmPackage included 1 x Lithium battery charger module