Voltage/Load: 5V/0.5ANominal capacity: 2200mAhStandard charging voltage: 4.2VOutput no-load circuit: 4.8 to 5.3VStorage temperature: -20 to 40Over-current, -voltage and -load protectionsPortable, lightweight, small in size and convenient to carryPacking:1 piece/polybag and 100 pieces/carton

2200mAh Power Bank with Polymer Li-ion Battery