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6 Signs Your Car Battery is Dying

6 Signs Your Car Battery is Dying

What are signs that your car battery is dying?

  1. Clicking sound when turning the key
  2. Corrosion on the connectors
  3. Slow engine crank
  4. Dim headlights
  5. Swollen battery case
  6. General electrical issues


  • Understanding these signs assists car owners in early problem detection, enabling preventive measures to avert unforeseen breakdowns.
  • This knowledge aids in identifying whether a battery requires repair or replacement, ensuring proactive maintenance for optimal vehicle performance.

Are you familiar with that heart-sinking moment when your trusty car decides to play hard to get? Frustration sets in, and you wonder if it's a minor hiccup or a more serious issue.

In this situation, don’t let panic take over. Instead, prepare yourself by understanding the different signs your car's battery is dying.

Clicking Sound When Turning the Key

When you turn the key, instead of the familiar engine hum, you hear a persistent, rapid clicking sound breaking the silence.

It's not just an annoying noise; it's your car saying it has enough juice to operate the solenoid—a vital part in the starter system that needs fewer amps. This tells you that your car's battery is running low and can't power both the starter motor and solenoid at the same time.

Corrosion on the Terminal Connectors

A clear indication of potential battery problems can be observed at its terminals. When you open the hood, take a moment to inspect the battery terminals. The presence of corrosion, though not always immediately noticeable, suggests upcoming issues with your car battery. This buildup often manifests as a white, blue, or green substance on the terminals or cables, resulting from the reaction of hydrogen gas with the surrounding air.

Corrosion contributes to a shorter battery lifespan and electrical complications by creating increased resistance in the circuit, disrupting the electrical flow. Dimming headlights or unusual clicking sounds are common signs of this issue.

Regularly checking your battery, cables, and terminals is essential to prevent such problems. Ensure they are free from corrosion and firmly connected, making these routine inspections a habit to maintain your battery's overall health.

Slow Engine Crank

Slow Engine Crank

Slow engine cranking, characterized by a delayed response when turning the key to start your car, suggests a decreased capacity of the battery to supply necessary electrical power, leading to an extended starting process.

Here's what you can do:

  1. Turn off electrical accessories: Ensure all lights and the radio are turned off.
  2. Allow a brief pause: Rest the battery for a minute or two before retrying to start the engine.

Attempt to start the engine again: Turn the key as usual.

If these steps don’t work, it’s best to seek the diagnosis of a professional. This is a sign that you should consider seeking roadside assistance. At Motolite, our RES-Q app is available for National Capital Region residents, offering help with battery issues. Additionally, we provide Express Hatid service for battery replacements and on-site assistance by trained technicians, offering diagnostics, jump-starts, and basic electrical check-ups.

Dim Headlights

While driving at night, you might notice a subtle but crucial change: your headlights dimming. This alteration isn't just about appearance—it's a signal from your vehicle's electrical system.

As your battery's power weakens, the headlights become less bright. This connection between battery health and headlight brightness serves as a clear sign for drivers. Recognizing this dimming effect prompts drivers to consider a comprehensive battery check to prevent potential issues or unexpected breakdowns on the road.

Swollen Battery Case

A swollen or bulging battery case is a rare but concerning sign of possible battery trouble. This unusual occurrence happens due to an internal problem, causing the battery to expand. The excess gas produced during charging builds up pressure inside, causing swelling. This indicates a serious issue that needs professional attention right away.

Recognizing this physical change is a warning for car owners to act quickly to avoid safety risks and potential problems with their vehicles.

General Electrical Issues

General Electrical Issues

Your car's electrical system relies on the battery as its primary power source for engine ignition and component operation. When you notice erratic behavior in your car's electronics—like flickering radio, misbehaving windows, or erratic locks—it's not a random occurrence. These are indications of a weakening battery. This power decline disrupts the synchronization of electronic parts, causing issues.

Despite appearing random, these signals prompt car owners to seek professional battery inspection to prevent unexpected malfunctions.

Key Takeaway

Knowing the signs of a dying car battery is crucial to preempt unexpected breakdowns. Recognizing these signs—dim headlights, slow engine cranks, electrical malfunctions—helps drivers identify battery problems early, allowing timely interventions or replacements and preventing inconvenient and potentially hazardous situations on the road.

With Motolite Express Hatid, there's no need to visit a shop or seek out a mechanic for a battery replacement. Our technicians will conveniently deliver and install the battery directly at your location! Choosing this express service ensures a stress-free and straightforward battery replacement experience with Motolite. Get in touch with us for further details.

To avail of this, call us at our official hotlines:

  • Metro Manila: (02)8370-6686
  • Provincial Toll-Free: 1-800-10-370-6686
  • Globe: 0917-891-6686
  • Smart: 0918-843-6686

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