Description: Item Name: Lipo battery charging board Item NO.: TP4056 Charging Method: linear charge Charging Current: 1A Adjustable Charge Accuracy: 1.5% Input Voltage: 4.5V-5.5V Full Charge Voltage: 4.2V Charging Indicator: Blue light lit charge,red light lit full charge Charging Input Interface: Mini USB Working Temperature: -10 Degree to +85 Degree Reverse: NO Weight: 1.8g External Dimensions: 25 * 19 * 10mm Usage: Used for single lipo or multi-section lipo parallel charging,can take power from the USB port.