USB Rechargeable Batteries

The company Moixa Energy produces concept batteries type AA. The whole concept is that these "batteries" are charged from the USB-port.

The top of the USBCell battery is a twist-off hinged cap that holds a regular USB connector. Thus, you can charge these batteries without the help of bulky chargers. Simply plug them into free USB slots on your laptop or PC.

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