Suppose you are out at for picnic and suddenly you come to know that your iPhone battery drained throughout the travel. Etón Boost Turbine is enough to fully charge your smartphones in less time. You can use it to make emergency calls by running the hand turbine for one minute only. The charging capability via USB port makes this product a universal portable charger through which you can charge almost any Smartphone. Costing (60$) only, the portable power pack features 2000mAH lithium-ion battery pack. Made with light weight aluminum and weighs only 7OZ i.e., 198g). LED indicator, for indicating battery charging levels. Micro-USB DC input cable is used for charging iPhones etc.
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USB Emergency Charger for iPod/iPhone/Blackberry/Nokia/HTC
Available at amazon.com for $60