When an EV slows down, its motor can run in reverse as a generator, converting the car's kinetic energy back into electricity and storing it in the battery. This extends range, particularly in stop-and-go city traffic and on downhill stretches.
Regenerative braking also reduces wear on the conventional brakes. Many EVs let drivers adjust the strength of regeneration, and some offer one-pedal driving where lifting off the accelerator slows the car significantly.