I wanted to be able to charge my cell phone, MP3 player, and other USB devices while not having plug-in power available. This hand-crank generator, originally designed by Ben Heck, ended up working the best.
Charge your cell phone, MP3 player, and other USB devices when plug-in power is not available.
I wanted to be able to charge my cell phone, MP3 player, and other USB devices while not having plug-in power available. This hand-crank generator, originally designed by Ben Heck, ended up working the best.
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I'm taking a trip to China soon, and last summer we spent a week without power due to downed trees all over the state. Let's just say it was a rough week. So I wanted to find a way to charge my USB stuff without using those battery packs. Originally I was thinking of making an Altoids can AA battery charger, until I stumbled upon Ben Heck's video on YouTube.
Check out The Ben Heck Show. A video where I learned about this project can be found here.
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As an Android guy myself, I haven’t tested it on an Apple device, but from what I learned in making the charger, it seems all USB connections work on 5V- but I could be wrong.
http://pinouts.ru/Slots/USB_pinout.shtml
There is only one way to find out for sure Kevin, try it! -R
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what is specification of the Dynamo
how many mA is this thing putting out?