Battery Type:Li-Polymer Voltage:3.7V Capacity:1600mAh Charging voltage:4.2V Discharging voltage:2.75V Charging and discharging current:0.8A,Max 1.6A Dimension:122*17*8mm Weight:30g Package:Neutral or OEM Fit for:reading pen ,household lamp ,Bluetooth speakers, dog training devices, medical products, communication equipment, LED lamps, GPS locators etc