1. Increased Starting Power: A battery with a higher CCA rating delivers more starting power, which is especially useful during cold weather or when the engine is subjected to heavy loads. The 640 CCA battery will have a greater ability to crank the engine, ensuring reliable starts even in challenging conditions.
2. Reserve Capacity: The reserve capacity of a battery determines how long it can power essential electrical components in the vehicle without the engine running. A higher CCA battery typically has a better reserve capacity, providing more backup power for accessories like lights, audio systems, and climate control in case the alternator fails or the engine stalls.
3. Longevity: High CCA batteries tend to last longer than their lower CCA counterparts. This is because they are designed to handle higher electrical demands without straining the internal components. By installing a 640 CCA battery, you can potentially extend the battery life and reduce the frequency of replacements.
4. Compatibility: Most modern vehicles have electrical systems designed to accommodate a range of battery capacities. As long as the physical dimensions of the 640 CCA battery match the original 550 CCA battery, and the terminal configurations are compatible, there should be no issues with fitment or functionality.
It's always advisable to refer to the vehicle owner's manual or consult with a qualified mechanic before making any battery replacements to ensure you select the appropriate battery for your specific car model.