Phones tend to be out of battery right when you need them most. With this project, you can extend your phone's battery life just enough to make those emergency calls! You just have to set your phone out in the sun for a while, and you'll have just enough power to send a text or make a short call. ...By: funtogether
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from Instructables: exploring - technology - robots http://ift.tt/1BsnEL8
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