This portable charger is powered by a 9 volt battery. It can charge your, cell phone, smart phone, or tablet. List of Things Needed. 6 inches of 22 gage wire.1 Switch : With Power, ACC, and ground outputs. 1 USB car charger. Preferably with an LED.9 volt battery.9 volt battery adapter.Large Altoi...By: aditya.sagi
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from Instructables: exploring - technology - robots http://ift.tt/1a9rlJY
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