Solar backpack (Solar charger)
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
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
> >> available, along with a lot of bad ones. There are even a few devices
> >> will take energy from irregular movement, a bit like a self-winding
> > I'm looking for a bicycle or hand driven dynamo for use with Freerunner.
> > you have any links where to find such devices?
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> > http://lists.openmoko.org/mailman/listinfo/community
> David Reyes Samblas Martinez
> Open ultraportable & embedded solutions
> Openmoko, Openpandora, Arduino
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