When in KERS mode and uses the brake, the car decelerates by recharging the electric energy produced by the motor into the battery. The Regenerative Braking System used in EV cars is that when the brake pedal is applied and the car’s speed is reduced, the car’s motor turns into a generator, and the energy flows back into the battery and recharges it. In addition, the life span of Brake Pads and Rotors will be extended and battery energy saving will also extend the travel distance.
MG ZS EV has 3 KERS modes
MG 4 EV has 4 KERS modes