How do I properly maintain the battery life of an Audi A7?

I recently purchased an Audi A7 and want to make sure I am properly maintaining its battery life for long-term use. What steps should I be taking to ensure its longevity?

Regularly check the voltage levels of your battery and replace when needed. It is recommended to check every 6 months or 6,000 miles.

Avoid constantly using electronic features when the engine is not running, as this can drain the battery faster.