re-charging battery kits?

[amaroq]

Are there any kits where the wheel recharges the battery?
Cycling provides so much kinetic energy, I am surprised that we don't recharge our batteries as we go.

 

[D8ve]

It doesn't workout in practice.
You only get some power down hill when most of us like to go wheeee.
Most energy is lost to wind resistance. Little spare etc.

 

[anotherkiwi]

Cycling provides so much kinetic energy, I am surprised that we don't recharge our batteries as we go.

Yes it provides energy to go forwards! A charger requires 42 V and 2 A current, that is a BIG dynamo you are going to need...

Direct drive regen motors add drag and extra weight and good ones cost a lot (GoSwiss Drive). They are useful in mountainous regions where they save brake pads from wearing out too quickly.