Width: 2 to 3.5" / 50 to 90 mm Thickness: 0.3 to 0.4" / 7.5 to 9.5 mm Ports 1 x USB Type-C Capacity (mAh) 1300 mAh Battery Runtime 1.5 to 3.5 Hours Battery Chemistry Lithium-Ion Voltage 5.0 VDC Operating Voltage 3.4 to 4.2 VDC Operating Current 220 to 300