How to Protect Your Car's Battery from Extremes of Heat and Cold

Your car's battery has one job: to provide a short burst of high-powered energy to start your car's engine via the starter and ignition systems. It does this by using two metal plates immersed in strong sulfuric acid.

Eventually, the battery runs out of juice and has to be replaced approximately every three to five years. Extremes of ambient temperature can accelerate this process.

Protecting your battery from strong heat

More car batteries corrode up to 33% faster in the heat of summer than they do in winter. To prolong the life of your battery, inspect it regularly for corrosion, store your car in a garage or under shade, flush it with coolant, and keep the fan belt in good condition.

Dealing with extreme cold

Cold temperatures inhibit the chemical reaction that makes your battery work. Automotive oil runs thicker in winter, making your engine have to work harder. Advice for avoiding trouble is the same as in hot weather; check for bulges or corrosion, keep your car sheltered, and keep the coolant level topped up.

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