It sounds like you are using a conductance tester. The CCA input is just used to create a pass or fail point. You will still get an accurate CCA reading from the test no matter what number you put in there. I usually just guess at the number. You can also use a battery application catalog and that will tell you what the required CC is for that vehicle. Yours should be around 500 to 550 CCA.
Sep 30, 2016 at 10:54 AM