This looks like an excellent battery.
I see no need to recharge batteries from braking on a commuter
bicycle. It does not save enough energy to make it worthwhile.
Jones Beene you wrote:
It helps to be fit and young and live in a city with excellent
weather and little rain, like San Francisco or LA, BUT even rainy
Seattle and Portland are doable.
I saw a lot of electric bicycles in China. Bicycles are still widely
used there. In Japan many people commute to train stations on
bicycles. You see thousands parked all day. It is a perfect
combination of light and heavy transportation.
- Jed