BatteryBox - A Battery for 12 hours of a Macbook Air

The BatteryBox is a 50 Whr backup battery pack designed by Gbatteries. It has got enough juice for 12 hours of a Macbook Air, 6 hours of Macbook Pro, or 8 iPhones. The BatteryBox itself is re-charged using a MicroUSB, and takes around 4.5 hrs to reach an 80 percent charge or nine hours for 100 percent charge on a 1A power supply, or half that time if you use a 2A power supply. They claim this to be a real design and accepting pre-orders. 

       [Via - likecool]