How to make a bike phone charger from an old wind-up radio

Household Hacker
Wednesday, 4th January 2012

Enjoy DIY projects? Want to start on small-scale renewable energy projects and maybe progress to more lofty heights? Here's an ideal place to begin by harnessing your heavy pedaling and generate some juice for your cell/mobile phone. With this nifty bike device you can ride around all day and never worry about your phone dying on you. All you need is an old wind-up radio.

Renewable energy is now part of the core curriculum in many countries for young teenagers. Lets make it more fun – learn by doing. Lets start with this modest DIY project and learn some basic physics along the way. This could be a great project for some inter-generational bonding!

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Roderick Read |
Wed, 29/05/2013 - 13:42

I'm looking to build a charging circuit to fit my kite...kitepowercoop.org (the ribbon kite arch one..)
Any idea of other sources for these generators... (looks like mini 3 phase of some sort)
There has got to be a better way to go about getting one.
However if you really are finished with the radio etc... why not.

wangfangs |
Sat, 01/06/2013 - 07:49

Welcome Shay Carl fans, this is how we modded Shay's Bike! You can harness your heavy pedaling and generate some juice for your cell phone. With this nifty bike mod you can ride around all day and never worry about your phone dying on you.
All you need is a cheap hand crank radio or flash light that has a USB port. We will strip it down a bit and connect it to our bike tire for optimal charging power!view:http://www.ahappydeal.com/wholesale-core-phone.html

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