How To Tell If Car Battery Is Dead. It is important to identify a dying battery before it goes off completely. Without it your vehicle doesnt have the power to start move or do anything else.

Troubleshoot a car battery without any tools. Another indication of a dead battery is that you cannot turn on the interior light of the car. So its important to understand at least a little bit about your battery and to know the most common signs that it needs to be replaced.
If youve confirmed the battery is working properly after reading the section above then the safest conclusion to make is the issue is related to the alternator.
Without it your vehicle doesnt have the power to start move or do anything else. Check for these common symptoms of a dead battery. A dead car battery can be one of the first indicators of a problem with the alternator. Signs of a dead battery.

