1: Widely used2: Battery overvoltage protection3: High safety performance, safe to use4: Simple and easy to understand5: With thermal regulation functiondescribe:Material: PCBColor as shownComplete charge management of a single-cell LiFePO4 batteryPower supply voltage DC 3.8-6V, charging output voltage DC 3.6V;The maximum charge current/output current is 1A, but you can vary the current by changing the value of the R1 resistor.Precharge conditioning for recovering deeply discharged batteries and minimizing heat dissipation during initial charging phaseConstant current/constant voltage/constant temperature operation with thermal regulation to maximize charge rate without risk of overheatingAutomatic low-power sleep mode when input supply voltage is removedC/10 Charge terminatedAutomatic rechargebattery temperature sensorBattery overvoltage protectionLED indicator: "CR" LED is charging status indicator"OK" LED is fully charged or in constant voltage mode;Working environment temperature -40~+85Package Contents:3PCS 1A 3.2V 3.6V LiFePO4 Battery charging moduleOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.