How do I check the battery health on an Audi A2?

I am planning to buy a used Audi A2 and I want to make sure the battery is in good condition. How can I check the battery health?

You can use a multimeter device to check the voltage of your Audi A2's battery. A healthy battery should have a reading of 12.6 volts or higher.

Another way to check the battery health is to switch on the headlights and then start the engine. If the headlights become brighter after starting the engine, it indicates that the battery is weak and needs to be replaced.