How do I check the battery levels in my Audi A4?

I recently purchased a used Audi A4 and I'm not sure how to check the battery levels. Can someone provide a step-by-step guide?

To check the battery levels in your Audi A4, first locate the battery under the hood. Then, remove the plastic cover and use a voltmeter to measure the voltage. A fully charged battery should read between 12.6 and 12.9 volts. If it reads lower than 12.4 volts, it may be time to recharge or replace the battery.

To easily check the battery levels in your Audi A4, you can use the on-screen display in the driver information system. Simply go to the Info or Car menu and select Vehicle Status. You'll be able to see the battery voltage as well as other important information about your car.