Battery manufacturers have used the Cold Cranking Amps (CCA) rating to do a lot of bragging, but for most of the country, it’s not something we should give so much weight to. You see, Cranking Amps is the output of the battery at 32 F—when water freezes into ice. Cold Cranking Amps is the measurement for how much the battery can put out at 0 F. There certainly are parts of the country that see 0 and below—I’ve lived there—but if your winter only dips into the 20s then you probably don’t need to spend the extra money to get a few hundred more CCAs.