How can I improve the lifespan of my Audi A2's battery?

As a proud owner of an Audi A2, I am wondering how I can increase the longevity of my car's battery given its unique setup. The battery is located under the passenger seat and cannot be easily accessed or replaced.

Regularly check the battery connections and make sure they are clean and secure. Any buildup of corrosion or loose connections can lead to reduced battery lifespan. It is recommended to check this at least twice a year.

Limit your use of electronic features and accessories, such as the radio or headlights, when the engine is not running. This will help prevent the battery from draining unnecessarily and extend its lifespan.