From Mimoco:

From the officially licensed Star Wars x MimoPowerBot  Series 1… “I am your father. And a ruthless Sith Lord. And a backup battery charger. But mostly a ruthless Sith Lord.” With 5200mAh of the Force in your hands, you’ll never run out of juice… just don’t get on his Dark Side.

Darth Vader MimoPowerBot  is a portable rechargeable backup battery that powers up smartphones, tablets, and other 5V mobile devices on the go.

R2-D2 MimoPowerBot  is a portable rechargeable backup battery that powers up smartphones, tablets, and other 5V mobile devices on the go.

MimoPowerBot includes a USB charging cable with multiple tips (microUSB, miniUSB, Nokia, Apple 30 pin, Apple Lightning) and a carrying pouch to stash it all in one place. Product ships October 2014!