How do I check the battery of my Audi A2?

I have been experiencing some difficulties with starting my Audi A2 and suspect it might be a problem with the battery. Is there a specific way to check the battery and determine if it needs to be replaced?

To check the battery of your Audi A2, you can use a voltmeter or take it to a mechanic who can test it for you. If the battery is 12.6 volts or above, it is fully charged and functioning properly.

You can also check the battery by inspecting the terminals for any corrosion or build-up. If there is, clean it with a wire brush and baking soda solution. This can improve the battery's performance.

If you notice that the battery is draining quickly, it may be time for a replacement. The average lifespan of a car battery is about 3-5 years, so it's best to get it checked by a professional if it's nearing that time.