Where can I get a "dynamo battery charger"?

[Dr. KillGood]

I cant find one anywhere, and I just love dynamo powered things!

Think about it, if I had a charger to just charge batteries with dynamo, they I would not need to look around and find all these special dynamo powered devices!

[NiN^_^NiN]

I cant find one anywhere, and I just love dynamo powered things!

Think about it, if I had a charger to just charge batteries with dynamo, they I would not need to look around and find all these special dynamo powered devices!

Simple the small dynamos wont be strong enough to charge the battery in a good amount of time aka not tiring you out.

Bigger ones would work well but they really are to bit to charge small batteries plus everyone is lazy i dont think anyone would buy something you have to turn for 40mins to charge a AA when there are easier ways.

Now i am making a dynamo for my exercise machines so it will power a dvd player so i can watch while i workout but as i am working out on three machines im gonna harvest the energy for something useful to cut down on the electricity bills

i already have a solar setup using 1 of them 12v car battery to charge up one of them external battery packs for jumpstarting cars thats hooked up to some 12v cold chathode lights for night it can run 80w at 1hr and 10mins (did this with a ps2 and rounded the numbers) so it runs my 20w light for 4 hours altho i might do the same setup for another 20w bulb

anyway enough blabbing thats why they dont have dynamo chargers for batteries

[Dr. KillGood]

I opened up this dynamo flashlight I got and it has 3XAAA batteries in it, and it charges those fast enough.

[NiN^_^NiN]

It will charge them up enough for the batteries to power the led/bulb for a short while it wont fully charge them and will take a lot of squeezing of the hand to get them fully charged (thats it its a hand squeezed dynamo)