SolarFocus Battery Bank
Here's what other sites are saying:
The Solar Focus Battery Bank offers a backup energy source for recharging electronic devices, including digital cameras, cell phones, GPS units and iPods. 2 rechargeable AA batteries (included) provide abundant power to keep you communicating, navigating and entertained. Light and slim design is easily portable. Batteries can be removed and put in electronics that use 2 AA batteries. Solar Focus Battery Bank is charged via USB from a computer or solar panel (sold separately). Capable of charging 5V and 6V devices.