Why Car Batteries Fail More in Winter

If you have ever had a vehicle that failed to start on a cold winter’s morning, you are certainly not alone. One of the most common reasons why vehicles fail to start in the UK during the winter season is a failed vehicle battery. But why do vehicle batteries fail more often in the winter?

At Uni Tyres Mobile Tyres Services, we have a 24x7 emergency vehicle jump start service to help you in times of need. As a mobile tyre service based in Dawley Parade, Hayes, Middlesex (no garage), we will come to you and assist you with vehicle jump start services.

If you are in Uxbridge or travelling to Ealing or even to Slough, you will certainly experience extreme weather that will put additional strain on your vehicle’s battery.

Cold Weather Affects Chemical Reactions in Batteries

Vehicle batteries use a series of chemical reactions to generate the power needed to start the vehicle. Cold weather affects the rate of the chemical reaction in the vehicle’s battery. When the cold weather sets in:

• The power output of the vehicle’s battery reduces
• The resistance in the vehicle’s battery increases
• The engine crank speed reduces

If the temperature falls to 0°C, the vehicle’s battery will lose 20% of its power. Drivers in areas such as Harrow or Wembley will experience cold mornings in the winter season.

More Power is Required to Start an Engine in Winter

In cold weather, it requires more power to start an engine. Due to thickened engine oil, the starter motor needs additional power. As a result, you may experience a failed vehicle battery because:

• The vehicle’s battery will have reduced power
• The engine will require more power to start in cold weather

If your battery is already old or weakened, it may fail completely.

Older Batteries Fail in Cold Weather

Most vehicle batteries have a lifespan of 3 to 5 years. As a battery gets older:

• Internal components degrade
• Capacity decreases
• Ability to hold charge decreases

An old battery may work perfectly in summer but fail instantly in cold weather. Short-distance drivers in Ruislip and Northolt may not be aware that their batteries are weakening until winter.

Increased Electrical Usage in Winter

Winter driving increases demand on the vehicle’s electrical system, including:

• Headlights
• Heated seats
• Heated rear window
• Heated mirrors
• Blower motor
• Windscreen wipers

The weakening battery tries to keep up with this demand but may fail.

Short Journeys Prevent Full Charging

Driving short distances does not allow the alternator enough time to charge the battery fully. Drivers in Richmond and Twickenham are more likely to experience winter battery failure due to short trips.

Warning Signs Your Battery May Fail This Winter

Watch for the following signs to prevent total failure:

• Slowing engine crank
• Clicking sound when turning the key
• Dim headlights
• Battery warning light
• Frequent jump-starting
• Erratic electrical behavior

If you notice any of these signs, it is wise to replace the battery before total failure.

What Happens If Your Battery Fails Completely?

If the battery fails completely, you may experience:

• The vehicle will not start
• You may be stranded
• You may need to seek roadside assistance
• You may be late for appointments

Battery failures tend to occur at the most inconvenient times, such as early morning or late evening.

How to Prevent Winter Battery Failure

You can prevent your battery from failing during winter by:

• Checking the age of your battery and replacing it every 3-5 years
• Driving your vehicle frequently
• Avoiding too many short trips
• Switching off accessories while the vehicle is parked
• Checking battery terminals
• Getting a battery health test before winter

Conducting preventative checks is far more convenient than waiting for a failure to occur.

24x7 Emergency Battery Jumpstart – We Come to You

At Uni Tyres Mobile Tyres Services, we understand that your vehicle’s battery could fail at any time during winter. As a fully mobile service, we offer:

• 24x7 emergency battery jump start
• Tyre fitting
• Puncture repair
• Sensor valve replacement
• Wheel balancing
• Locking wheel nut removal

We will jump start your vehicle and have it running in no time.

Areas We Cover

We operate in Hayes and surrounding areas, including:

• Uxbridge
• Ickenham
• Northwood
• Greenford
• Perivale
• Acton
• West Drayton
• Yiewsley
• Feltham
• Brentford
• Chiswick
• Teddington
• Sunbury-on-Thames
• Staines-upon-Thames
• Ashford
• Maidenhead
• Langley
• Datchet
• Gerrards Cross
• Denham
• Beaconsfield
• Iver
• Edgware
• Stanmore
• Pinner

Need Winter Battery Assistance?

If your vehicle's battery is not working properly in cold weather, do not wait until it fails completely. We are available 24/7 to assist you. Contact us at:

Location: Dawley Parade, Hayes
Phone: 0794 0747676
Email: [email protected]

Final Thoughts

Car batteries are prone to failure during winter because the weather drains battery energy while engine demands increase. Old batteries and short trips make winter the most common season for battery failure.

If your vehicle is slow to start or you need urgent jumpstart assistance, contact Uni Tyres Mobile Tyres Services for efficient mobile jumpstart services in Hayes and surrounding areas.

Call: 0794 0747676 – Mobile tyre and battery specialists at your location, anytime.