The Solar Charger Laptop Bag can fully charged in direct sun or nomrnal electricity for eight hours. The Laptop Solar Charger Bag can charge mobile phone,black berry,digital camera,iphone,MP3,MP4,PDA, Videocon,portable DVD and so on.When the Laptop Solar Charger Bag is not in the sun,it can be charged by the AC travel charger.Besides,The Solar Charger For Laptop is waterproof which is very convenient.This product is very simple to use and easy to carry, and it's multifunctional.