7 Signs Your Car Battery Needs Replacement

1. Slow Engine Crank

“Taaakk…Taak..Taakk..”When you notice that your engine is slow to start and also has a sluggish cranking sound when you turn the ignition key, it’s a sign that the car battery is weak and that is when to replace your car battery.

2. Dimming Headlights

Another sign of when to replace a car battery is if you have dim headlights. The headlights of a car are directly powered by the battery. Dim headlights may also be caused by other electrical issues such as a faulty alternator, however, it’s still essential to check on your car battery to ensure it’s healthy.

3. Warning Lights on the Dashboard

If you own a modern vehicle, the dashboard may be equipped with battery warning lights. If this warning light turns on while you’re driving, it indicates that there’s a possible problem with the battery or charging system. Don’t ignore this warning sign as it can result in more issues. Therefore, have your battery checked if you see this sign on your dashboard.

4. Issues with Electrical Components

Just like dimming headlights being powered by the battery, other electrical components in the car are also powered by the battery. When the battery is weak, you might encounter dimming interior lights or dashboard lights other than dimming headlights. Other electrical component issues you may experience are power windows or the car radio.

5. Battery Corrosion

Another sign your car battery needs replacement is battery corrosion. It typically refers to the buildup of a white, powdery substance around the battery terminals and connections. Be sure to check under the hood and inspect the battery as corrosion can impede the flow of electricity between the battery and the car’s electrical system which can lead to problems like starting issues, electrical issues and battery failure.

6. Strange Smell

If you notice a strange foul smell coming from the car, which often smells like rotten egg or sulphur, it may indicate that the car needs a new battery replacement. This could be because of the chemical reaction within the battery – which most likely means the battery acid has leaked. The presence of the foul smell could be because the battery is damaged caused by overheating, overcharging or internal damage. This is how you know when the car battery is dead.

7. Trouble Starting the Car in Cold Weather

If you have trouble starting the car in cold weather, this is an indication that your car battery may be weak. Hearing a slow cranking sound when starting the car is a sign that the battery needs a replacement. However, this does not happen in Malaysia due to our tropic climate.