Features: 100% brand new and high quality Bright: Charging Off: full Blinking: almost full; If the charging current is too large (or the battery capacity is small), it will quickly enter the flashing state, and the charging current should be reduced. Applications:Cellular Telephones;PDA, MP3 Players, MP4 Players; Digital Cameras; Bluetooth Applications; Solar charging; Game Players Notebook; li-on Lithium Battery 18650; Mobile phone ;Audio equipment;Portable Devices The terminal has good contact performance, ensure stable working Adopted of high quality electronic components, and precision process, ensure for the durability Specification: Type:1S-2A,1S-1A, 2S-1A, 2S-05A, 3S-1A,3S-05A(Optional) 1-Cell(1S) 4.2V Version: Input voltage : DC 4.5V-23V(Recommend DC 5V/6V/9V/12V/15V) Charging voltage : 4.2V Charging current : 1A/2A(Please choose the parameters you need when purchasing) 2-Cell(2S) 8.4V Version: Input voltage : DC 10-23V(Recommend DC 12V/14.8V/15V/18V) Charging voltage : 8.4V Charging current : 0.5A/1A(Please choose the parameters you need when purchasing) 3-Cell(3S) 12.6V Version: Input voltage : DC 14.8-23V(Recommend DC 14.8V/15V/18V) Charging voltage : 12.6V Charging current : 0.5A/1A(Please choose the parameters you need when purchasing) Led indicator : Bright: Charging Off: full Blinking: almost full; If the charging current is too large (or the battery capacity is small), it will quickly enter the flashing state, and the charging current should be reduced. Operating ambient temperature : -40° to +85° Storage temperature : -65° to +125° Size : 30 * 15 * 5.5mm / 1.2 * 0.6 * 0.2in Weight: 2.5 g / 0.1 oz(approx.) Package list: 1 x Battery Charger module