Stay powered up and stay green with The Compact Solar USB Power Pack.
This lightweight, high efficiency solar-powered battery pack features a
23,000 mAh battery that can charge several mobile devices multiple times
before needing a charge of its own. It also supports a wide range of
output voltage with DC and USB output socket for laptop and cellphones.
When you don't have a power outlet, simply place the charger under the
sun to save power for you and to charge your devices whenever you need. [buy]nn