Lithium Polymer Battery for Portable scanner of SF Express Capacity: 1600mAh Voltage: 3.7V Pack Dimension: Length: 66.5±0.35mm Width: 38.5±0.3mm Thickness:16.5±0.3mm Standard discharge:Constant current 0.2 C5A end voltage5.6V Maximum Continuous Discharge Current:1.5C5A YL-160-7.4(653460-2S)