Signs of a dead car battery

Monday 9th November 2020

signs of a dead car battery

Experiencing a flat car battery can be frustrating – especially as you’re likely to figure this out as you’re attempting to reverse off the drive. Never ideal timing! Flat batteries can occur due to a number of reasons, such as a drop in temperature, or because your car has been sitting on the drive for too long without being driven. However, it’s important to know how to identify if your car battery is dead – and what pre-emptive signs to look out for to avoid a sticky situation.

How to tell if your car battery is dead

Dead car battery symptoms

  • Dashboard – when your battery is flat, an illuminated battery symbol will appear on the dashboard. This is likely to be the most obvious sign that your battery is dead, so it’s important to recognise the symbol (it may look similar to the image above – but it also varies depending on your car’s make and model).
  • Are you having trouble starting your car? – if your battery is failing, you’ll notice that the engine may take longer to start – but it’s likely you’ll only have one or two of these warnings before your battery actually dies. When your battery has gone completely flat, you will not be able to start the car’s engine and, instead, you will just hear a clicking noise.
  • Windows, lights and air conditioning – as well as powering your car’s engine, the battery also sends power to other electrics in the vehicle. If your battery is failing, your headlights may appear dimmer – so this is something to keep an eye out for. However, if your car won’t start and you’re wondering why, check the lights, radio or electric windows to see if they work. If not, you’re most likely looking at a flat battery.

If your battery has died, you may be able to jump-start it with two jump leads – using the power from another vehicle’s engine to give out a boost of energy to kick-start your own battery. Alternatively, you may need to charge your battery using a battery charger. Learn how to charge a car battery now.

How long should a car battery last?

Typically, car battery should last around 3-5 years. However, this is dependent on various factors – such as what type of battery you have, the climate of your residency (as heat increases the rate of battery degradation), and how often you use your vehicle.

Replacing a car battery

In some instances, you may need to fully replace your car’s battery, rather than fixing it with a jump-start. Firstly, you must establish what car battery you will need – this will depend on various factors, such as the size of the battery, whether you choose an AH or CCA battery and considering your vehicle manufacturer requirements.

That’s why Formula One Autocentres are here to help. We offer a free battery check to determine your battery’s health through a comprehensive inspection. Simply search for your nearest Formula One Autocentre to book in for your battery health check now.

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