Solar backpack (Solar charger)

Jakob jackramone at
Sat May 23 16:59:40 CEST 2009

On Sat, May 23, 2009 at 2:16 PM, Michal Brzozowski <rusolis at> wrote:
> 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>

A normal bike dynamo has 6V and 3W so that would be 2A of current. I
think that should be plenty even with the losses through conversion to
5V DC. (Depends of course how fast you are going with your bike ;))


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