Best Buyhas theEnerPlex PR-COMM-BK Packr Commuter Solar Backpack (Black) for a low $49.99 Free Shipping. Tax in most states. This EnerPlexSolar Backpack normally sell for $100, so you are saving an additional 50% off the list price thanks to this deal. Features an integrated 3W solar panel Allowsyou to easily power and charge most USB-enabled devices while on the go Backpack can be fully packed without damaging the panel Padded interior laptop sleeve, compatible with most laptops up to 15in 8x interior and 3x exterior pockets, allow you to store and organize accessories and essentials Padded shoulder straps for acomfortable carry This comes with 1 year warranty