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.
Projects from Make: Magazine
Hand-Crank USB Charger
Charge your cell phone, MP3 player, and other USB devices when plug-in power is not available.
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Steps
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Step #1:
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.
Conclusion
Check out The Ben Heck Show. A video where I learned about this project can be found here.