21^st-Century-Goods sells high quality Universal External Battery Packs for Laptops and Portable Batteries for iPads.  We sell Tekkeon External Batteries, a leader in  portable external batteries for cell phones, computers, iPads, Netbooks and more.  The Tekkeon 3450 works great with Sunlinq Flexible Solar Panel as a lightweight portable solar laptop kit or Solar Power iPad kit.  Duracell and Wagan makes a great 110 Volt Power Source for Laptops and iPads on the go.   You can charge any of our Power Packs with AC Power, DC Power or with Sunlinq Solar Panels.