Regen braking: confirmed!

[jhautz]

I'm just wondering how much this "regen" actually can effect run time. it cant be much.

I understand that when you spin the magnet inside the coils the motor acts like a generator. But wouldnt it act like a generator while its just coasting too? Why does it take shorting the motor phases to generate energy? Just not making sense to me.

If you lock up the tires when stopping, then the motor is then no longer spinning so it cant be generating any power to send back to the battery, but it must consume some energy in order to keep the motor from spinning. How can it not take engergy to prevent the motor from moving?

I guess I am still not clear on this.