On 4/10/2011 4:01 PM, Phil H wrote:
On Sep 30, 4:31 pm, wrote:

Do they or can they reverse the flow when going downhill to recharge the
battery? Like the electric trains up and down the Blue Mountains putting
power back into the grid?

Regenerative braking is a fairly common feature on electric bike motor
controllers, or it was last time I looked. However, I think it's more
of a feel-good thing than a practical feature; the cumulative
inefficiencies involved mean that of the energy that goes into getting
the bike moving, only a very small proportion ends up back in the
battery.


-- Phil

Well why can't there be a generator on the front hub feeding the battery
- that would be topping it up all the time. Wonder how that would
translate into horse power loss of efficiency of the rear motor to drive
the generator?