TP4056 Li-ion Battery Charging Module 1A with Mini USB

From the shop's description

Simple charger for 1-purpose lithium-polymer batteries with a nominal voltage of 3.7V. The system is powered via a miniUSB connector or by wires Product Description:Li-Pol TP4056 single cell 1S 3.7 V miniUSB charger Simple charger for 1-purpose lithium-polymer batteries with a nominal voltage of 3.7V. Maximum charging current is 1000 mA. The system is powered via a miniUSB connector or via wires connected to IN+ and IN- inputs. Connection The system is powered via the miniUSB connector or via wires connected to the IN+ and IN- inputs. The Li-Pol battery should be connected to the outputs marked BAT+ and BAT- . Charger specifications Layout: TP4056 Power supply voltage: (miniUSB or IN connectors) from 4.5 V to 5.5 V Charging voltage: 4,2 V Maximum charging current: 1 A Socket: miniUSB(miniUSB cable can be purchased separately) Two signal lights Red: charging Green: full charge Module dimensions 22.5 x 17.5 mm Attention ! Before connecting the battery, check the polarity of the plug. Useful links Documentation TP4056