Automotive Battery Cold-Cranking Amp Estimater
By Bowling

The definition of the Cold-Cranking Amperage (CCA) of an automotive battery is the amount of current a given battery can deliver for 30 seconds at zero (0) degrees F without dropping below a specified cutoff voltage (manufacturer-specific, but usually 10.5 volts).

The following provides an estimation on what CCA rating is required for a given vehicle. Program inputs are the engine CID - Cubic Inch Displacement (Use the engine displacement units conversion code to convert liters or CC to Cubic Inches), and the number of cylinders.

Here is a FAQ file for information about batteries.

Many Thanks to Mr. Bruce Bowling

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