Battery Type:Li-Polymer Voltage:7.4V Capacity:500mAh Dimension:10*22*51mm Weight:20g Charging voltage:8.4V Discharging voltage:5.5V Charging and Discharging current:0.5C Maximum Continuous Charge and Discharge Current:1C Fit for: Medical products, earphones, remote control toys, sports bracelets, driving recorders, audio, electric toothbrushes, trackers, smart home lighting, etc.