The folks at pedalpowergenerator
have added some step by step videos to the free diy section.
This setup takes advantage of an adjustable V-belt, which will cost you
50 bucks. You take the tire off your wheel and replace it with the
V-belt to get maximum efficiency from the exerted energy. The
Duracell power pack functions as a storage unit with a built in
inverter and usually sells for a bit over a hundred dollars. The
generator will cost you more depending on which one you choose, and all
that's left is the charge controller and blocking diode, which can be
had for under 100. I almost forgot the bike stand....which could be
made from scrap material or you can just buy the industrial model.
I've been studying different versions of pedal
power over the years and would say this configuration is the
smartest one I've seen yet. If you add a small solar cell and reduce
your use you might just make enough power to get you through the day.