How do I properly maintain and extend the range of my Audi A2's battery life?

I have recently purchased an Audi A2 and I want to make sure I am taking proper care of the vehicle's battery. What are some steps I can take to maintain and possibly extend the battery's lifespan?

To maintain and extend your Audi A2's battery life, make sure to regularly check the battery's water level and clean the terminals with a mixture of baking soda and water. Avoid letting the battery drain completely and invest in a quality battery charger.

To maximize the battery life of your Audi A2, minimize the use of electronic accessories while the vehicle is turned off and avoid short trips. It may be beneficial to invest in a battery maintainer to keep the battery charged during long periods of inactivity.