With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Tell us about yourself!
i tried using a 47 ohm resistor but i was unable to charge an iPhone. Also the USB output started heating up when i connected it to the battery. What should I do?
Join 2 million + to receive instant DIY inspiration in your inbox.
© 2016 Autodesk, Inc.