What is the 12-volt on-board electrical system of the Audi e-Tron and how does it differ from traditional cars?

I recently purchased an Audi e-Tron and I noticed that it has a 12-volt on-board electrical system. I'm used to traditional cars with a 12-volt battery, so I'm curious about how this new system works.

The 12-volt on-board electrical system in the Audi e-Tron is a secondary low-voltage system that supports the vehicle's main high-voltage system. It powers essential functions such as lights, interior electronics, and safety systems.

Compared to a traditional car, the 12-volt on-board electrical system in the Audi e-Tron is more efficient and requires less maintenance. It also allows for faster charging of the high-voltage battery.

It's important to keep in mind that the 12-volt system in the Audi e-Tron is not a replacement for the high-voltage battery. It's best to avoid using the car's 12-volt plug for accessories or charging other devices.