Earth and sun and moon


Well, not quite. But it is another personal charging option to add to the solar and hand-crank mix (thanks to Guy Yeomans for pointing this in my direction over lunch last week).

The HYmini is a cool compact wind-powered charger with an internal lithium ion battery (there’s also an optional solar panel and hand-crank attachment). They’re still a little pricey, coming in at around the $50 mark, but I can imagine as they get cheaper seeing them attached to bikes – the perfect power solution for Bodafones and other bicycle-centric phone service providers in developing countries (photos, below, from kiwanja’s Mobile Gallery).


Motion chargers would be the final piece of the jigsaw, but are still a little way off. Trevor Baylis prototyped a pair of “electric shoes” back in 2001, walking across the Namib desert to prove that you could charge a small battery – enough to power a radio or mobile phone – through the action of walking. Nothing may have come of that, but he clearly got other people thinking. Expect announcements later this year.

10 thoughts on “Earth and sun and moon

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