If you want to charge your gadgets while you ride your bike, then the best way has been to think ahead and get the bike fitted with a dynamo hub when you buy it. Now, there’s another option: a seat-post-mounted solar panel.
It’s called the SolarCycle Delux, and it comprises an aluminum rack along with the [...]
Source: http://www.wired.com/gadgetlab/2011/11/solarcycle-a-sun-powered-usb-port-for-you-bike/
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