What maintenance is required for the Audi A7 battery?

I noticed my Audi A7's battery is starting to wear out. What kind of maintenance should I do to prolong its lifespan?

Regularly check and clean the battery terminals to prevent corrosion and ensure good connection. Also, consider investing in a battery tender to keep the battery charged when the car is not in use.

Make sure to only use distilled water when topping up your battery's electrolyte levels. This prevents mineral build-up and maintains the battery's ability to hold a charge.