Automotive Battery Cold-Cranking Amp Estimator 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
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.