How to Make a Portable USB Mobile Charger using 9V Battery

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Here is a simple video tutorials to make a portable USB Mobile Charger using 9V Battery, Bottle caps, etc., Now you can charge your phone anywhere easily. Thank you for Watching. Subscribe to our How-to-Raju Channel here: https://www.youtube.com/user/sachinsfanrajkumar Visit our website: http://www.howtoraju.com/



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