How do I properly maintain the battery of an Audi A2?

I recently bought a used Audi A2 and I want to make sure I properly maintain the battery to ensure longevity. I am not very familiar with car maintenance so any specific steps or tips would be greatly appreciated.

To maintain the battery of your Audi A2, make sure to regularly clean the terminals and connections to prevent corrosion. Also, regularly drive your car for longer periods of time to allow the battery to fully charge and prevent it from draining. Lastly, consider investing in a battery tender to keep the battery charged when the car is not in use.