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Why do Batteries Break Down in Winter?


09 Sep 2019

Category: Guides

When temperatures drop, more people tend to struggle with starting their car. Here are some common reasons to why automotive batteries tend to fail during the winter.

Drop of Temperature means Drop of Power

Despite vast technological improvements made to automotive batteries in recent years, the cold does affect the efficiency of the chemical reaction that supplies electricity within the battery. Studies have shown that a battery will supply 30% less power when the temperatures drop below 0 degrees Celsius.

Loss of Charge

Many motorists tend to find that they struggle to start their engines after a not using their vehicles during the festive season. This is because the battery can run out of charge in that time. To avoid a flat battery, motorists are advised to run the car for at least 10 minutes every day that it is not in use during their holiday.

No Drive, No Charge

Even a short journey will allow the battery to recharge.

Using Battery Powered Accessories

When the car is not running, motorists should avoid using electrical gadgets such as phone chargers or the car radio as it will drain the battery.

Lights are on but Nobody’s Home

As the nights draw closer during the winter months, it is not uncommon for motorist to forget to switch off their headlights. This is one of the most common mistakes that lead to a premature failure in batteries.

Dodge the Winter Chill

It is always advised to conduct a ‘battery health check’ before the cold weather sets in. This is to avoid any potential cases of a motorist being caught out in the cold. Batteries should be changed between three to five years depending on the driving habits of motorists.

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