What size battery is in the 2000 ford mustang v6?

The size of the battery in the 2000 Ford Mustang with the 3.8 L V6 engine is Group Size 58, 550 CCA. The group size is industry standard and it measures the battery by height, width and length and the polarity. CCA stands for cold cranking amps and it is the battery's ability to start the engine in cold temperatures and the higher the CCA is the better. The location of the battery on the Mustang is on the driver side of the engine towards the front. The battery should last anywhere froM3 to 5 years depending on the climate it is primarily driven in. You can tell when it is going bad when it is harder to start the car, especially in colder temperatures.