How regenerative braking works and why it's critical in EVs and hybrids. Regenerative braking captures the vehicle's kinetic energy during deceleration and converts it back into electrical energy. In a traditional car, braking converts kinetic energy into heat, which is wasted. In an EV or hybrid, when you lift off the accelerator, the electric motor reverses polarity and becomes a generator. It resists wheel motion and sends the recovered energy back to the battery. This reduces wear on brake p