There’s nothing more frustrating than jumping into your car, turning the key… and nothing happens. A dead car battery is one of the most common reasons for vehicle breakdowns in Australia, but the good news is, your battery often gives you warning signs before it completely fails.
Knowing what to look (and listen) for can help you avoid being stranded and prevent further damage to your vehicle’s electrical system. Here’s how to tell when your car battery might be on its last legs, and what you can do about it.
1. Slow Engine Crank
One of the first and most obvious signs of a failing battery is a slow engine crank. If your car is taking longer than usual to start or sounds sluggish when turning over, it’s a clear indication your battery may not be delivering enough power.
Don’t ignore this sign, it’s often the final warning before the battery dies completely.
2. Dashboard Warning Light
Many modern vehicles have a battery or alternator warning light on the dashboard. If this light stays on while you’re driving, it could mean your battery isn’t charging properly, or there’s an issue with the alternator.
If the light flickers or comes on after starting the car, it’s worth getting your charging system inspected.
3. Electrical Issues and Dim Lights
A weak battery may still start your car but struggle to power other electrical components. You might notice:
- Dim headlights
- Flickering dashboard lights
- Power windows moving slower than usual
- Trouble with the radio or air conditioning
If these issues occur when the engine is off or just starting up, your battery could be the culprit.
4. Swollen Battery Case or Corrosion
Pop the bonnet and take a look. If your battery case looks bloated or swollen, this could be due to excessive heat or internal short-circuiting. Similarly, white or blueish corrosion around the terminals is a sign that the battery is leaking or deteriorating.
Both are indicators that your battery should be tested and potentially replaced.
5. Age of the Battery
Most car batteries last between 3 to 5 years in normal conditions. If your battery is nearing or past this age, it’s wise to have it tested, even if you haven’t noticed any problems yet.
Regular servicing is key to catching battery issues early.
What Should You Do if Your Battery Is Failing?
- Get a battery test: At Auto Leaders, we can test your battery’s charge and overall health.
- Replace if necessary: If your battery is weak or showing signs of failure, replacing it can save you time, hassle, and a potential breakdown.
- Don’t wait for it to die: A new battery is a small price to pay compared to emergency roadside assistance or being late to work or appointments.
Stay Powered and Road-Ready
Your battery is a small part of your car, but it plays a massive role in getting you where you need to go. If you’ve noticed any of the signs above, or your car is due for a general check-up, Auto Leaders is here to help.
Book your car service today and let our experienced team keep your car running reliably, every time you turn the key.
