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by Edited by Lisa A. Grimaldi | November 09, 2011

PowerBag backpack

 

 

Powerbag's briefcases, messenger bags and backpacks include built-in batteries that charge almost any device that uses a USB cable, e.g., tablets, smartphones and e-readers, all at the same time. Cost, from $140. (888) 251-2026; mypowerbag.com