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WHY DO BATTERIES FAIL IN WINTER?

WHY DO BATTERIES FAIL IN WINTER?

Fewer things are more frustrating than climbing into a cold, frost-covered car only to hear the dreaded ‘clicking’ of a dead battery.

It happens to us all at some point! But why do vehicle batteries fail more frequently in winter?

THE TOUGH LIFE OF YOUR VEHICLE’S BATTERY…

First, a quick refresher on what is happening inside a car battery. Lead acid batteries are the most common car batteries. They consist of a plastic case that houses a series of lead plates immersed in electrolyte — a mix of water and sulphuric acid. Each pair of plates makes up one “cell.” When fully charged, each cell in a lead acid battery produces 2.1 volts. So, a 12-volt battery consists of six cells.

The lead acid battery doesn’t produce a charge, but receives and stores an initial charge through a chemical reaction between the cell’s lead plates and the electrolyte. But as the chemical reaction occurs, the positive and negative lead plates are gradually coated with lead sulphate. This process is known as sulphation, and it reduces your battery’s ability to hold a full charge. To complicate matters, lead acid batteries experience self-discharge, a natural loss of charge over time. Left too long without a fresh charge, a battery can discharge beyond recovery.
Extreme heat or cold can increase your battery’s rate of discharge, making winter a triple-threat to your battery. Exposure to summer’s heat (especially a summer as we have just experienced) evaporates the water in the electrolyte, increasing sulphation. Then winter follows and freezing temperatures slow the chemical reactions occurring inside a lead acid battery, further reducing your battery’s ability to perform. At the same time, a cold engine and sluggish oil demand more power, while power-hungry features like heating and windscreen defrosting place increased demand on your battery. You will not always get a warning before your battery fails, however the best way to find out if it’s time to replace your car battery is to have your battery tested. Prevention is always better than cure…

SO WHY DO BATTERIES FAIL IN WINTER? SEE BELOW FOR SOME INDICATORS THAT YOUR BATTERY IS ON THE WAY OUT…

  • Headlights dim yellow instead of white
  • Dashboard battery warning light is on
  • Electronic accessories fail
  • Engine ‘turns over’ more slowly
  • Car horn sounds unusual
  • Battery case swollen or cracked
  • Smell of sulphur or rotten eggs
  • Battery is more than three years old

Don’t get caught out this winter.

At BBL Batteries we stock a full range of quality batteries and can both test your existing battery and advise you on the most suitable replacement should you need one.

Please contact us to find out more…

  • Bristol - 0117 9550535
  • Plymouth - 01752 338501
  • Swindon - 01793 616646
  • Truro - 01872 270011
  • Exeter - 01392 254418
  • Head Office - 0117 9550536
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Geoff Lewin 17 March, 2019 Reply

Great sales desk, sorted out a battery for my 1975 Honda straight away.
Most helpful staff,
Will call again.

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Richard Barron 22 January, 2019 Reply

I would recommend this company. Great priced batteries, fast service and very polite staff! I will certainly be going back!

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TREVOR HOUGH 16 January, 2019 Reply

first class service from first class staff ,battery replaced under warranty no problem at all
a really refreshing change from staff who understand the meaning of customer care
would not hesitate to use again or recomend

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Jenefer 17 September, 2018 Reply

Very friendly and happy to help. Visited the store asking for advice on my car battery due to signs coming up on my screen. They tested it there and then and said I needed a new battery. They fitted the battery quickly and at very good pricing. Would recommend to anyone smile

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Nicky Edwards 25 August, 2018 Reply

Excellent Service, had a problem with my battery charger and it was replaced along with the battery, Thank you all so much for your help

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Brian Jones 18 April, 2018 Reply

Good experience yesterday, Chris ( Clarke ) was very knowledgeable and friendly with a sense of humour - also good price on my lawn mower battery

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Paul draper 05 April, 2018 Reply

Excellent service from Chris and came away completely satisfied. Will definately recommend BBL Batteries to everyone, Thanks again for friendly atmosphere.

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Ernie and Mary Eva 08 February, 2018 Reply

Thanks to Mike and Ashley, our car battery was tested , found to be exhausted and not holding a charge, and was replaced all very efficiently and quickly and with courtesy and good humour.  Very grateful customers!

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Ernie and Mary Eva 07 February, 2018 Reply

Thank you so much Mike and Ashley for wonderful service—efficient, professional and quick in testing and replacing our car battery.  Fun too!
What an amazing array of stock there!
Would recommend this centre any time.

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Susan Wilschere 17 January, 2018 Reply

BBL Batteries in Truro was recommended to me by my local garage. I spoke to a gentleman called Mike who advised me on the best battery for my Ford Fiesta. Mikes extensive knowledge and experience was evident on talking to him and the battery price very reasonable.  The fitting service was extremely quick with no fuss. Exemplary customer service from all at the Truro store, I highly recommend this company. Many thanks.

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