Solar backpack (Solar charger)

Michal Brzozowski rusolis at poczta.fm
Sat May 23 14:16:10 CEST 2009


Ok, I wasn't specific enough. What I'm looking for is exactly that thing in
the middle :-) that will output the 500mA or 1A through a USB.

Is a bike dynamo powerful enough to provide the 500mA or 1A to charge the
Freerunner?

2009/5/23 David Reyes Samblas Martinez <david at tuxbrain.com>

> look at http://www.sheldonbrown.com/harris/lighting/shimano.html
>
> but remember you will have to have a good voltage regulator or better
> a battery charger able to charge itself and the neo at time, in the
> middle, to avoid the current variance of the dinamo
>
> 2009/5/23 Michal Brzozowski <rusolis at poczta.fm>:
> > 2009/5/21 Al Johnson <openmoko at mazikeen.demon.co.uk>
> >>
> >> If you want something effective for emergencies or extended periods away
> >> from
> >> power a mechanical device is probably more effective. For cycling a good
> >> dynamo will provide more, and more reliable, power than any bike-mounted
> >> solar
> >> panel. Other than that there are some good quality hand cranked
> generators
> >> available, along with a lot of bad ones. There are even a few devices
> that
> >> will take energy from irregular movement, a bit like a self-winding
> watch.
> >
> >
> > I'm looking for a bicycle or hand driven dynamo for use with Freerunner.
> Do
> > you have any links where to find such devices?
> >
> >
> > _______________________________________________
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> > community at lists.openmoko.org
> > http://lists.openmoko.org/mailman/listinfo/community
> >
> >
>
>
>
> --
> David Reyes Samblas Martinez
> http://www.tuxbrain.com
> Open ultraportable & embedded solutions
> Openmoko, Openpandora,  Arduino
> Hey, watch out!!! There's a linux in your pocket!!!
>
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> community at lists.openmoko.org
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>
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