Best 2014 est Portable USB Power Bank

6000mAh lithium polymer battery
Dual USB to charge two devices at the same time
Professional design to protect battery and prevent battery damage, Small and easy to carry
Support for multipe devices, such as iPad/iPhone/iPod, tablet PC, mobile phones, MP4, MP3, GPS, Bluetooth headset...
More than 500 charge cycles
One button controls all functions

Electric Parameters:
Cell capacity: 6000mAh
Output1+output2: DC 5V/2A
Dynamic allocation
Input: DC 5V/1A