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Is Your Car Battery Failing? 8 Tell-tale Signs to Look Out For

car battery

As a car owner, you know how important it is to keep your vehicle well-maintained. One of the most crucial parts of your car is the battery, which provides the electrical power needed to start the engine and operate various electrical components. Over time, your car battery can lose its ability to hold a charge, leaving you stranded and inconvenienced. This article will explore eight signs that your car battery is dead or dying.

1. Slow Engine Crank

A slow engine crank is the most obvious sign that your car battery is dying. If you turn the key and the engine cranks slowly or hear a clicking sound when you turn the key, it may be a sign that the battery is struggling to provide enough power to start the engine. Several factors, including a weak battery, corroded terminals, or a faulty alternator, could cause this.

2. Dimming Headlights

If you observe that your headlights are not as bright as they normally are, it might indicate that your car battery is on the verge of failing. The headlights draw a significant amount of power from the battery, and if the battery is weak, it may not be able to provide enough power to keep them bright. This could also indicate a problem with the alternator, which is responsible for charging the battery while the car runs.

3. Electrical Issues

Your car’s electrical system relies on the battery to function properly. If you notice that your radio, power windows, or other electrical components are not working properly, it could be a sign that the battery is dying. This is because these components draw power from the battery, and if the battery is weak, it may not be able to provide enough power to keep them working.

4. Swollen Battery Case

If you notice that the battery case is swollen or bloated, it could be a sign that the battery is overheating. Several factors, including overcharging or exposure to high temperatures, could cause this. An overheating battery is dangerous and should be replaced immediately.

5. Smell of Rotten Eggs

If you smell a strong, rotten egg-like odour from your engine, it could be a sign that your battery is leaking gas. This gas is highly flammable and can be dangerous if not handled properly. If you notice this smell, turn off your engine immediately and have your battery inspected by a professional.

6. Old Age

The lifespan of car batteries generally ranges from three to five years, which varies based on your vehicle’s type and brand. If your battery has been in use for over five years, changing it might be a good idea, even if it appears to function properly. As time passes, the battery’s capacity to maintain a charge diminishes, and it might not be able to supply sufficient power to start your engine dependably.

7. Corroded Terminals

Corrosion on the battery terminals can prevent the battery from properly connecting with the rest of the electrical system. This can cause various problems, including difficulty starting the engine and electrical issues. If you notice corrosion on the terminals, it’s important to clean them thoroughly or have them replaced.

8. Warning Light

Most modern cars are equipped with a battery warning light on the dashboard. If this light comes on while driving, it could be a sign that your battery is dying. This warning light is designed to alert you to potential problems with the battery or charging system and should not be ignored.


The car battery is a vital part of your vehicle’s electrical system, and maintaining it in good condition is essential. To prevent being stuck on the road and ensure your car is always prepared to run, be mindful of the indicators of a failing battery. If these signs are observed, have a professional examine your battery immediately. A dead or weak battery can pose a risk, so do not compromise your safety or passengers.

Keep your car running at its best with a new battery from Automed Car Care. Our experienced team specializes in quick and reliable car battery replacement services. Schedule your appointment today and enjoy peace of mind on the road!

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