I used this 18 volt cordless drill to make a simple hand held generator.
You could probably also use this for water (hydro) or even wind. (small wind turbine)
What makes this setup nice is the fact that you can just loosen the end like where you would put a drill bit into it and simply add a hand crank and tighten the chuck.
You could use a threaded rod from Lowes and bend it to make a nice crank for it.
Free Energy Devices June 23rd 2008
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