Extreme temperatures can be hard on a car battery, which is why it's important to take care of your car battery in the winter. If you live in an area with extreme cold and have a lead-acid type battery, then you'll want to keep them at room temperature when possible. This will help prevent freezing or boiling while also making sure that they don't get too hot either. We recommend storing your car during the colder months so that it doesn't have to work as hard.
What Can Cause a Car Battery to Fail in Extreme Cold?
Cold temperatures have a negative effect on your car battery. If the temperature falls below freezing, any water remaining in your battery could freeze and expand, cracking the casing of the battery. This forces the acid and lead components to push out from inside the cell as well as leave any remaining water behind. As the battery gets colder, more and more power will be used to try to keep the acid in a liquid state so it won't freeze completely. This uses up some of its energy supply and many batteries are unable to make up that difference later on, which causes one cold engine start after another.
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