How is regenerative braking used in the Audi e-Tron vehicle?

I have heard that regenerative braking technology can improve the efficiency and range of electric vehicles. Can you explain how it works in the context of the Audi e-Tron?

Regenerative braking captures the kinetic energy of the vehicle and converts it into electrical energy, which is then stored in the battery for later use. This helps to reduce the reliance on external charging and can improve the vehicle's range.

The e-Tron uses a regenerative braking system that can recover up to 30% of the vehicle's kinetic energy, helping to improve its efficiency and reduce CO2 emissions.