USB rechargeable batteries

Moixa Energy launches AA concept batteries. The whole concept is that these "batteries" are charged from a USB port.

The top of the USBCell battery is a twist-up flap that hides a standard USB connector. Thus, you can charge such batteries without the help of bulky chargers. Simply plug them into free USB slots on a laptop or PC.

For such an original solution, you will have to pay with a reduced battery capacity (1300 mAh instead of the standard 1400-2400) and a charging duration of more than 320 minutes.
The cost of a set of two such USBCell is 500 rubles.

via Gambling