What's the best way to maintain and extend the battery life of my Audi A2?

I've recently purchased a used Audi A2 and I want to make sure I'm taking the proper steps to ensure the battery life lasts as long as possible. What are some tips and tricks for maintaining and extending the battery life of my Audi A2?

Regularly check the battery connections for any corrosion or loose connections. This can greatly impact the performance and life of your battery.

Avoid using too many electronic devices or accessories while the car is off, as this can drain the battery. Always make sure all lights and devices are turned off before exiting the car.

Consider investing in a battery charger or trickle charger to help maintain the life of your battery. This is especially helpful during colder months when batteries tend to drain faster.