How do I properly maintain the battery on my BMW 2 Series?

I recently purchased a BMW 2 Series and was wondering what steps I should take to ensure the longevity of the battery. Are there any specific maintenance procedures I should follow?

Regularly checking the battery's fluid levels and keeping them at the recommended level can greatly extend the life of your battery.

Using a battery charger or maintainer can also help keep your battery in good condition.

Avoid leaving your car's electronics or lights on for extended periods of time as this can drain the battery quickly.