Specification:

1.Battery Type:Lithium Polymer
2.Capacity:2400/1900mAh
3.Size:59x59x19(mm)
4.Weight:68g
5.Input Current:500mA MAX
6.Output Current:800mA MAX
7.Input /Output Voltage:5.25 V ± 0.25 V
8.Span:>500 times
9.Charge time:2-4 hours
10.Certificate:CE/FCC/ROHS/MSDS/UN38.3

Usage:

1.Convenient charging anywhere,anytime
2.When charging your mobile phones the 4 upper LEDs will indicate power level of the unit.
3.To check the remaining capacity of the portable power bank press the battery level indicator
   button at the top right of the unit.
4.When charging the portable power bank itself,the top 4 LEDs will indicate the charge level.
   Once fully charger the LED marked " FULL" will illuminate.