How does the Audi A2's electrical system work?

I am curious about the design and functionality of the Audi A2's electrical system. Can someone explain how it works and its key components?

The Audi A2's electrical system is designed with an intelligent dual-battery management system, where the main battery powers the vehicle while the auxiliary battery supplies energy for start-stop functionality. To optimize energy usage, the system also features recuperation technology, capturing and storing energy while braking, coasting, and decelerating.

The Audi A2's electrical system is built with an advanced power electronics module, integrating all the vehicle's electronic control units, sensors, and actuators. This allows for faster and more efficient communication between components, enhancing the overall performance and safety of the vehicle.

The Audi A2's electrical system includes an intelligent alternator with a higher capacity than traditional alternators. This ensures that the battery is charged more quickly and efficiently, allowing for a longer battery life and reduced fuel consumption. Additionally, the system features a start-stop function, which turns off the engine when the car comes to a stop, further optimizing energy usage and reducing emissions.