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Make: Technology on Your Time Volume 11
book

Make: Technology on Your Time Volume 11

by Mark Frauenfelder
August 2007
Intermediate to advanced
190 pages
7h 38m
English
Make: Community
Content preview from Make: Technology on Your Time Volume 11

Bicycle iPod Charger

A sidewall dynamo powers both lights and tuneage.

By Mark Hoekstra

After buying an iPod mini a couple of years ago, I started experimenting with ways of extending its battery life. First I tried the Perfectmate hand-cranked flashlight/charger, only to find out that it takes up to 20 minutes of cranking to generate just enough power to boot the device. As well as making me appreciate how much power today’s lithium-ion batteries can hold, this got me thinking about other ways to human-power my iPod.

image

Fig. A: Bike-powered iPod charger detaches easily for parking.

Photography by Mark Hoekstra

I LIVE IN HOLLAND, WHERE BICYCLES ARE ...

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Publisher Resources

ISBN: 9781680456103Errata Page