How To Check If My 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. These things shouldnt have a major impact on your battery.
These things shouldnt have a major impact on your battery. Check your car manual for information. Its a good idea to write down the reading.
Signs of a Bad Alternator or Battery.
Place the black lead on the negative terminal. If the alternator is not charging the battery and not providing enough voltage into the system then you will get this jerking. When you look at the battery of your car you will see it has 5 or 6 cells in it. Turn the vehicles key to the run position and check the multimeter.
