A common question about EVs is whether they even have traditional brakes. The answer is yes - every electric car still has friction brake pads and rotors, even though it relies heavily on regenerative braking. Here is what that means.
EVs still have friction brakes
Electric cars use the same basic disc brakes as gas cars - calipers squeezing pads against rotors - for firm and emergency stops; see how disc brakes work. Regenerative braking does the light slowing, but friction brakes are required by law and physics for full stopping power.
Why EV pads last so long
Because regen handles most everyday slowing - see how regen braking works - the friction pads on an EV do far less work and can last much longer than on a conventional car; see how long pads last. It is not unusual for EV pads to go well beyond typical mileage.
The rust catch
Ironically, EV brakes can suffer from too little use - rotors that rarely get warm can develop surface rust and stick. Many EVs have a brake cleaning mode, or owners occasionally brake firmly to scrub the rotors clean. Lightly used pads can also glaze.
Still inspect them
EV brakes need periodic inspection for rust, sticking, and even wear even if the pads are barely worn; see brake pad wear patterns. When replacement time finally comes, fit quality pads and fresh hardware.