Identifying the Signs of a Failing Car Battery

June 27th, 2023 by

Key Takeaways

 

  • A slow engine crank is often a sign of a failing car battery.
  • The battery warning light is an important indicator to watch for.
  • The swollen or leaking battery is indicative of failure.
  • Dim headlights or internal lights suggest battery issues.
  • A backfiring vehicle can also be due to a faulty battery.
  • Regularly check the age of your battery; usually, it needs replacement every 3-5 years.

 

One of the most common inconveniences car owners face is an unexpected vehicle breakdown, often due to a failing car battery. Identifying the signs of a failing car battery can save you from trouble and unforeseen expenses. 

 

In this guide, the experts at Greenway Dodge will help you detect potential problems with your car battery before it’s too late.

Slow Engine Crank

When you attempt to start the vehicle, the car battery charges the engine. If your car battery is failing, you might notice that the engine cranks more slowly than usual. This is often the first sign of a weakening car battery. 

 

It might start the engine sometimes, but don’t be fooled. This issue indicates that the battery is on its way out, and it’s only a matter of time before it fails entirely.

Battery Warning Light

Most modern cars have a built-in battery warning light on the dashboard, which illuminates when the battery isn’t recharging properly or if there’s a potential issue. 

 

It’s essential not to ignore this sign, as it often indicates a failing car battery. As soon as you see this light, it’s best to get your battery checked by a professional mechanic.

Swollen or Leaking Battery

If your car battery leaks, it can cause corrosion around the terminals. This corrosion can appear as a white, ashy substance on the metal parts of the battery. 

 

Furthermore, a battery that’s swollen and bloated is another warning sign. Both these conditions usually occur when the battery is exposed to excessive amounts of heat, causing it to overcharge. If not addressed promptly, it could result in complete battery failure.

Dim Headlights or Internal Lights

Your car battery powers all the electrical components of your vehicle, including the headlights and internal lights. If you notice that these lights are dimmer than usual, it’s a clear sign that your car battery isn’t providing enough power. 

 

Addressing this issue as soon as possible is crucial, as poor lighting can create dangerous driving conditions, especially at night.

Backfiring

While not as common, a failing car battery can cause your vehicle to backfire. This is due to the battery sending inconsistent sparks to the spark plugs, resulting in the fuel in the engine not combusting properly. Fuel buildup can ignite all at once, causing a small explosion or a backfire.

Age of the Battery

Car batteries typically last around three years, depending on various factors such as the battery’s quality, condition, and climate. It’s always a good idea to check the age of your battery as it approaches this range. 

 

A battery older than five years might work perfectly fine, but it’s usually recommended to replace it to prevent any unexpected issues.

Struggling Electrical Components

As the car battery weakens, the power supply to other electrical components diminishes. You may notice the power windows operate slower than usual, or the radio and other electrical components start having performance issues. 

 

If you’re experiencing multiple electrical issues, having your car battery checked is a good idea.

A Rotten Egg Smell

Sometimes a damaged or leaking car battery can emit a strong, unpleasant smell like rotten eggs. This is due to the sulfuric acid in the battery leaking out and producing a sulfur gas. 

 

If you notice this odor around your vehicle, it’s essential to inspect your battery and the surrounding areas for any signs of damage or leaks.

Frequent Jump Starts Needed

If your vehicle requires frequent jump-starts to get going, it’s a clear sign that your car battery is failing. While jump-starting can help in the short term, it’s not a permanent solution. 

 

If you regularly need to jump-start your vehicle, consider replacing your car battery as soon as possible.

Difficulty in Starting the Vehicle

The most obvious and critical sign of a failing car battery is when your vehicle struggles to start or doesn’t start at all. This could occur sporadically, but the frequency usually increases as the battery continues to fail. 

 

If your car doesn’t start, the issue could be a failing battery or a problem with the starting motor. In either case, immediate professional help is needed.

The Need for Regular Battery Checks

Regular maintenance is essential for your car’s overall health; the battery is no exception. Regular battery checks can help detect signs of a failing battery before it becomes a significant issue. 

 

An automotive professional can conduct a load test to determine the battery’s condition and ability to hold a charge. 

 

Routine checks are essential if your battery is over three years old. Keeping track of your battery’s health can help you plan for a replacement, ensuring you’re never caught off guard by a dead battery. 

 

Be proactive, not reactive, when it comes to your car battery. This simple habit can save you both time and money in the long run.

Conclusion

Being aware of these signs of a failing car battery can save you from unexpected breakdowns, hefty repair bills, and the inconvenience of being stranded. 

 

Remember, a well-maintained car battery is essential for the smooth operation of your vehicle – don’t wait until the last minute when your battery shows signs of failure.

 

At Greenway Dodge, we care about your safety and convenience. If you’re experiencing any of these symptoms, don’t hesitate to schedule an appointment with our expert mechanics. We can inspect, diagnose, and, if necessary, replace your car battery to ensure you continue to have a safe and comfortable journey.

 

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