How to fix low battery life on my Audi A2?

I've noticed that my Audi A2's battery life has been significantly shorter than usual. What can I do to improve its longevity?

Check your battery voltage regularly, ideally every 3 months. If it drops below 12.4 volts, it's time to recharge. Keep in mind that short trips won't fully recharge a battery, so take your car out for longer drives to maintain its health.

Make sure your car's charging system is working properly. If the battery isn't receiving enough charge, it will eventually die. Consider taking it to a mechanic for a diagnostic test.

Avoid leaving your car sitting for extended periods of time without starting it. This can cause the battery to lose its charge and potentially lead to permanent damage.