Originally Posted by HopCar
I used one of these for a couple of years until one of my customers bought it off me.
If I am not mistaken that unit is a Midtronics MDX-640, or similar, analyzer relabeled for Newmar. You're likely to find the same analyzer in a Midtronics for less $$$..
As has been said you don't need the CCA to test the batteries. However without testing them when new, using the same analyzer, and in their current
condition, you won't really have a baseline to work from.
Tell us what the batteries are and one of us may have the CCA rating for them when new...
MDX-640 (Image courtesy Midtronics)