What Extreme Weather Can Do to a Car Battery
Extreme temperatures, both hot and cold, take a toll on the performance of a car battery. Most people associate a dead battery with below zero temps, but extremely high temperatures are just as guilty. Unless you're living somewhere where the temperatures are around 77 degrees Fahrenheit year-round, make routine battery maintenance a top priority.
In cold weather, as the mercury drops, so does the capacity of lead acid batteries. At -22 degrees Fahrenheit, the battery runs at around 50% of its normal capacity. Because motors demand a stronger boost to start in cold weather...