How do I troubleshoot a dead battery on my Kia Soul?

I've recently been having issues starting my Kia Soul and suspect it may be a dead battery. However, I'm not sure how to confirm and troubleshoot this issue. Can someone guide me through the steps?

First, check the age of your battery. If it's over 3 years old, it may be time for a replacement. Next, try jump starting your car with another vehicle or a jump starter. If it starts, then you can confirm it was a dead battery. Otherwise, you may need to check your alternator and electrical system for any issues.

Make sure to clean the battery terminals and connections to ensure a good connection. You can also check the voltage of your battery with a multimeter. If it's below 12.6 volts, it may need to be recharged or replaced.

In case you do need to replace your battery, be sure to consult your owner's manual for the correct specifications and size. It's also important to properly dispose of your old battery as it can be harmful to the environment.