How Cold Weather Affects Your Car’s Battery & Maintenance Tips

One of the most significant concerns during colder months is the impact on your car’s battery. Understanding how low temperatures affect your battery and taking proactive measures can save you from the frustration of a dead battery in the midst of winter. That’s why this month, your local Manchester mechanic is here to share some reasons behind cold weather’s influence on car batteries and offer practical maintenance tips to keep your vehicle running smoothly.

How Winter Takes a Toll on Your Battery

Chemical Reactions Slow Down 

In colder temperatures, the chemical reactions within a car battery slow down. This reduction in chemical activity can diminish the battery’s ability to generate and deliver power to start the engine.

Increased Internal Resistance 

Cold weather causes an increase in the internal resistance of the battery. This added resistance makes it more challenging for the battery to supply the necessary electrical current to start the engine.

Oil Thickening 

The oil inside your engine also thickens in cold temperatures, making it more difficult for the engine to turn over. This increased resistance places an additional burden on the battery.

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Maintenance Tips for a Healthy Battery in Winter

Battery Inspection

Regularly inspect your battery for signs of corrosion, leaks, or other damage. Clean any corrosion with a mixture of baking soda and water, ensuring that the battery terminals are free from buildup.

Voltage Check 

Before the winter season hits its peak, have a professional mechanic check your battery’s voltage. If the voltage is low, it might be an indication that the battery is nearing the end of its lifespan and needs replacement.

Keep Your Car Warm 

Whenever possible, park your car in a garage or use an engine block heater. Keeping your vehicle in a warmer environment reduces the strain on the battery and ensures that the engine starts more smoothly.

Battery Insulation

Consider using a battery insulation kit. This helps maintain a slightly higher temperature around the battery, preventing it from losing too much power in extremely cold conditions.

Regular Engine Start-ups 

If your vehicle sits idle for an extended period during winter, make sure to start the engine every few days. This keeps the battery active and prevents it from losing its charge.


Redman’s Muffler & Automotive | Manchester Mechanic

Whether you’re in need of repairs or other services this season, you can count on our Manchester mechanic to get you back on the road safely this winter. To explore our range of services, check out our website or contact our team for more information. We look forward to hearing from you!

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