Designer Wonchul Hwang has thought up a unique way to carry both files and extra juice for your devices, in this concept USB flash drive battery.
Named the AA USB, the design consists of a rechargeable AA battery which charges via a USB port, together with a internal storage flash drive.
By simply twisting the battery out pops a USB connector which can then be used to transfer files and charge the AA battery at the same time.
Unfortunately don’t expect to see the AA USB device in stores any time soon as its just a concept at the moment. But maybe a trip over to the Kickstarter crowd funding website will help bring the AA USB concept to life.
Source: Toms Hardware