How can I best maintain my Audi A2 battery?

I have recently purchased a used Audi A2 and would like to know the best practices for maintaining its battery. The car has a start-stop system and I want to ensure the battery has a long lifespan. Any tips or suggestions would be greatly appreciated.

First and foremost, it is important to regularly inspect your battery's terminals and clean them using a mix of water and baking soda. This will prevent any build-up of corrosion which can affect the performance and lifespan of your battery.

Consider investing in a battery maintainer or trickle charger. These devices can be easily connected to your battery when the car is not in use and help maintain its charge.

To extend the life of your battery, avoid using electronic devices such as the radio or headlights for long periods of time when the car is not running.