How To Determine If Your Car Battery Is Bad. How to Tell If Your Car Battery is Bad. In some cases a bad battery can trigger dashboard warning lights such as the check engine light and charging system light.
There are a few ways to test this to verify a problem. Ad Need a New Battery. Test the battery voltage.
Common symptoms of a dead.
Some of the things to look for are no-starting and trouble starting dimming lights and problems with stereo system output. Turn off the ignition and any accessories like lights or the radio in the vehicle. When your vehicle runs fine at first but begins to fail over the course of minutes you have a bad alternator. Signs of a Bad Alternator.
