How To Know If Car Battery Is Going Bad. If the dashboard lights are dim something is likely wrong with your battery. If youre wondering how do I know if my cars battery is defective Check for one of the following symptoms of a bad car battery.

Listed below are a few of these symptoms that will alert you that its probably time to replace your fob battery. If youre wondering how do I know if my cars battery is defective Check for one of the following symptoms of a bad car battery. Usually your engine requests some electricity from the battery to kick off.
These are the clear signs of having a bad battery.
1- Signs of wear and tear 2- Difficulty starting 3- Engine cranking but vehicle not starting 4- Headlights working but vehicle not starting 5- Frequent jump starts 6- Corroded terminals and cables. About three months ago it started when I tried to start in the morning and the battery was dead. First check the dashboard battery gauge. Another obvious sign is the one your vehicle tries to tell you.

