Embedded in the outside of the bags are three lightweight, tough, waterproof solar panels which generate up to 4 watts of power. This means quicker charge times! The solar panels are waterproof, scratch resistant, and UV resistant. They use a high efficiency monocrystalline cell. The three panels operate independently to generate up to 4 watts of power. This is double the power of typical solar chargers and enough to charge most portable consumer electronics (other than laptop computers). The substrate is an aluminum / plastic composite, specifically designed to be strong and lightweight. They can easily stand up to typical outdoor use including being dropped and leaned on.

The Voltaic solar backpacks are mobile power generators, designed to charge your devices without tying you to a power outlet, which makes them ideal for traveling. Just plug a standard car charger into the bag using the included CLA (car lighter adaptor) and recharge most small electronic devices including: cell phones, cameras, two way radios, PDA’s, and MP3s. Note: it is not designed to charge laptops. If you don’t have a car charger, the bags come with a set of 11 standard adaptors for common cell phones and other devices.

(Via EarthTechProducts.Com)