Onboard the TP4056 lithium charge management chip The charging D1 indicator lights, charging is completed D2 indicator Onboard MINI USB head can directly link computer USB port charging The charging board can also be powered by pin (IN + and IN-) Reserved the TEMP pin header, and can be used as a lithium battery temperature detection Quantity:5pcs PCB board size: 3.73 (cm) x1.5 (cm)/1.46''X0.59'' Input voltage: 4V-8V maximum output charging current: 1000mA Description: Charge module- Linear charging. Current- 1A adjustable. Charge precision- 1.5%. Input voltage- 4.5V-5.5V. Full charge voltage- 4.2V. Led indicator- red is charging blue is full charged. Input interface- mini USB. Work temperature- -10 to +85. ***Adabi Rc Hobby*** 089661681330 wa/sms