AC Input: AC 100-240V 
DC Output: DC 5V, 1A+2.1Amx
Batteru Input: DC5V, 3.0Amax
Battery Output:  DC 5V, 1A + 2.4Amax 
Battery cell: Lithium-ion
Battery capacity: 5200mAh
Battery capacity indication: 4 Led Indicators
Battery automatic power off: 90seconds
Overall dimension: 3.03”L x 2.83”W x 0.86”H
                                (77x72x22mm)