Even though your car battery may have appeared to have survived another extreme season, there may be damage inside that has severely compromised the way it works moving forward. When the weather is extremely cold, the liquids inside the battery are not able optimally. This makes it harder for the car to start, and if they do freeze, the casing of the battery could swell. If that happens, permanent damage may result.

If the weather gets too hot, those same liquids might start to evaporate, leaving the car battery with less chemicals to be able to crank over your car…