Apparently, you don't get it. Rechargeable batteries aren't 'born' with a full charge, and you can't use them and continue to have a full charge. And regenerative braking is recovering EXCESS energy from the kinetic energy of the car during braking. Yes, I watch e-racing.
SOMETHING has to charge those batteries, and it can NOT be the energy that CAME OUT of the batteries. Energy is LOST during the driving of the car, and THAT energy cannot be replaced without an energy source.
News 
Market Data 
Discover 
