Vehicle batteries are very specific in size, cranking amp and cold cranking amp ratings. Cranking amps and cold cranking amps are both ratings based on the number of amperes a battery can deliver while maintaining 1.2 volts per battery cell for 30 seconds.

Tips

Cranking amps are rated at 32 degrees Fahrenheit, while cold cranking amps are rated at zero degrees.

It is important to know this information, because a vehicle requires a specific amount of power to turn the engine over. In cold weather, the length of time an engine turns over to start will be longer, so the battery needs to be equipped with the proper cold cranking amperage.

Warnings

Do not replace your vehicle’s battery with one of a different type, size or rating.