Help with electric bikes?
I am designing an electric bike (gas prices at $4 means I need one) and had a set of prerequisites to fill, and was wondering if anyone here could give me a quick hand. First thing is, I'd really like for it to have regenerative braking of some kind to extend the range, but am very unsure as to how to do this. I also plan on charging the bike at my school; so a built-in charging unit will be a necessity. I need a range of about 10-12 miles on a single charge, is this too much to ask? The plan is to use a pair of 12v 8 amp-hour Lead-Acid batteries (http://www.sciplus.com/recommend.cfm/recommendid/14608) and a 12vDC cordless drill motor to provide power. Is this too "weak" of a system? I have a 10-speed mountain bike that I'll be using as the base frame. Any help would be much appreciated.