Charge your gadgets on the road or in the woods with a modular backpack that will carry enough charge to power a USB device for up to two weeks. Each module of the backpack will feature a 10,000 mAh battery that will power any USB equipped electronic device. The modules will come in three different sizes - the 10-liter Mini Messenger, the 24-liter Commuter, and the 34-liter Carry-On. The smaller two modules will charge up to two devices, while the larger Carry-On will be able to...