Why does the Audi e-Tron use regenerative braking?

I noticed that the Audi e-Tron has regenerative braking, but I'm not sure why it's necessary. Can you explain how this feature works and why it's important for electric vehicles?

Regenerative braking is used to capture energy that is normally lost during braking. This energy is then stored in the battery and used to power the vehicle, increasing its range.

When you apply the brakes, the electric motor turns into a generator, converting the kinetic energy of the vehicle into electrical energy. This helps to recharge the battery and improve efficiency.

Using regenerative braking not only increases the range of the Audi e-Tron, but it also helps to reduce wear on the brakes, saving you money on maintenance in the long run.