Solio's solar panels absorb the sun's energy.

Fully spread out the blades to expose the solar panels for the fastest sun-based charge. About eight hours of sunshine will charge the Solio completely, providing you with enough juice to recharge a typical cell phone twice; a mere hour of sun will buy you 25 minutes of talk time. The reliable little Solio even holds its own charge for up to a year. The Solio Classic works with digital cameras, game devices and Bluetooth headsets and is compatible with nearly every cell phone under the sun. The charger comes with a suction cup for charging the unit on a car or even airplane window.

Available on the Solio Web site and at select retail stores including Target, Best Buy and REI. (Better Energy Systems, $99.95)