Why Does Temperature Affect Car Batteries?

Car batteries are affected by extreme temperatures. Cold climate drivers learn to replace batteries that are older to avoid problems during a severe cold snap, but why do extreme temperatures have this affect on them?

Car batteries store and produce electricity using a chemical reaction between an acid and a metal like lead. This chemical reaction discharges electricity, and it's reversed when a battery is recharged. The reaction requires liquid water to happen, which is why extreme temperatures can cause problems. Very cold temperatures below -20F will cause the acid solution in a car battery to freeze, which stops the battery from working.

At our dealership, our certified automotive technicians can help you with any questions you have about your car's battery. Feel free to stop by our service center or call to make an appointment for an inspection.



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