Definitions for "Cold Cranking Amps"
Cold Cranking Amps is a rating used in the battery industry to define a battery's ability to start an engine in cold temperatures. The rating is the number of amps a new, fully charged battery can deliver at 0° Farenheit for 30 seconds, while maintaining a voltage of at least 7.2 volts, for a 12 volt battery. The higher the CCA rating, the greater the starting power of the battery.
The amount of current (amps) a battery at 0 degrees Fahrenheit can deliver for 30 seconds and maintain at least 1.2 volts per cell. (7.2 volts for a 12 volt battery)
The discharge load in amperes which a new, fully charged battery at 0 degrees F (-17.8C) can continuously deliver for 30 seconds and maintain a terminal voltage equal to or greater than 1.2 volts per cell.