Features:100 percent brand new and high qualityBright: 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 DevicesThe terminal has good contact performance, ensure stable workingAdopted 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 or 6V or 9V or 12V or 15V)Charging voltage : 4.2VCharging current : 1A or 2A(Please choose the parameters you need when purchasing)2-Cell(2S) 8.4V Version:Input voltage : DC 10-23V(Recommend DC 12V or 14.8V or 15V or 18V)Charging voltage : 8.4VCharging current : 0.5A or 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 or 15V or 18V)Charging voltage : 12.6VCharging current : 0.5A or 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 and85Storage temperature : -65 to and125Size : 30 x 15 x 5.5mm or 1.2 x 0.6 x 0.2inWeight: 2.5 g or 0.1 oz(approx.)Package list:1 x Battery Charger module