new_dharma said:most of the batteries most of the people in that link are using Sealed Lead Acid (SLA) batteries...like the ones used in battery jump-packs, trailer brakes...you can get them in 5-10 (and more) amp-hours, and they are rechargeable...finding a place to put them (tank, handlebar bag, rear rack) is the issue.
maybe a battery could be located in a Ratty old Leather bag..or an old leather satchle..you could dangle it from the seat or center bar..if your crafty you could probably route the wiring through the frame so you get a clean look..
thanks for the info new dharma....and everyone else...
just thought I would add my Battery Storage idea,
Kev.