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Car Battery myth buster quiz!

Ellie Dyer-Brown, 12 days ago

3 min read

  • Advice
  • Maintenance
Mechanic inspecting car battery

WhoCanFixMyCar reveals what's fact and what's fiction when it comes to car batteries with a short quiz

Think you know your stuff about car batteries? Can you tell fact from fiction, or is it simply a case of “out of sight, out of mind”? Test your knowledge with our quiz below, and don’t forget to let us know how many you got right!


  • Batteries last longer in warm climates

  • A quick drive after jump starting your car will recharge the battery

  • Batteries that cost more perform better

  • The heavier the battery the better the quality

  • Conventional batteries can be used in start-stop cars

  • Storing a battery on concrete will drain it

  • Almost half of all breakdowns are caused by battery problems

  • Batteries can last up to ten years

  • A faulty battery can increase fuel consumption

  • Letting your car idle will recharge the battery

20-05-08-flat-battery


#1. Batteries last longer in warm climates - FALSE

Battery problems are a common occurrence in winter, so you’d be forgiven for thinking that your car battery will last longer in a warmer climate. This, however, is false. 

While car batteries are put under a lot more pressure by cold weather and struggle to accept charge thanks to increased internal resistance, they actually have a faster discharge rate in the summer.


#2. A quick drive after jump starting your car will recharge the battery - FALSE

If your battery has gone completely flat, a short drive unfortunately won’t be enough to recharge it. You should aim to drive for at least forty minutes or so.

That being said, even driving for this length of time might be unsuccessful if there’s a fault with your battery or alternator. If you repeatedly experience a dead battery when you start your car, it’s probably time for a replacement.


#3. Batteries that cost more will perform better - TRUE

There will always be exceptions, but generally speaking batteries that cost more usually have more plates inside, and more plates give your battery more energy to start the engine. 

As such, paying more for your battery should result in improved performance.


#4. The heavier the battery the better the quality - TRUE

The main material used in batteries is lead, and the more lead you have the better a battery will perform. Consequently, batteries that are heavier, indicating they contain more lead, tend to be better than lighter batteries.

It’s worth noting that some low-quality batteries are filled with concrete to make them heavier and give the impression that they will perform better. That’s why it’s always best to buy a battery from a reputable brand. 

Another instance when weight doesn’t factor into performance is in the case of lithium-ion batteries. These are usually extremely lightweight and tend to be used in high performance production cars. 


#5. Conventional batteries can be used in stop-start cars - FALSE

Cars that utilise start-stop technology are fitted with next-generation lead-acid batteries; a regular car battery unfortunately won’t do the job. This is because the battery needs to be able to restart the engine more frequently in traffic.


#6. Storing a battery on concrete will drain it - FALSE

To be fair, this used to be true back when batteries were stored in wooden cases, but technology has definitely moved on since then. Nowadays, batteries tend to be cased in plastic, so there’s no need to worry about concrete causing them to discharge.


#7. Almost half of all breakdowns are caused by battery problems - TRUE

Thousands of breakdowns happen on UK roads every day, and almost half of these can be attributed to a faulty battery. That’s why it pays to keep yours in good condition - find out how below in our 'Recommended Reads' section.


#8. Batteries can last up to ten years - FALSE

This one is most definitely false. In an ideal world, batteries would last forever, but this simply isn’t the case. With proper maintenance, a car battery can last up to five years.


#9. A faulty battery can increase fuel consumption - TRUE

If your battery is faulty the alternator will have to draw more horsepower to recharge properly. This added load will increase the pressure on the battery and cause your car to use more fuel. 


#10. Letting your car idle will recharge the battery - FALSE

Again, this is something that would be true in an ideal world, but unfortunately isn’t true in reality. In order for the alternator to recharge your battery, you’ll have to drive your car for at least half an hour to forty minutes. Letting the engine run but remaining stationary will not charge the battery at all.


And that’s the end of the quiz! Hopefully now you’re a little bit more knowledgeable about all things car batteries, or you might have known more than you thought you did to start with. Find us on social (Facebook, Twitter, Instagram) and let us know how many you got right.


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