RioRat, I don't know the CCA of my battery off the top of my head but I will try to look this eveing and get back to you.
ATS_Aaron, nothing like setting off a few fireworks for the July 4th weekend!!!
There are guys here that LOVE the Optima battery so your post may be fighting words. However, even though I have never had one, I don't see how I will ever be convinced to try one either. I had an Interstate battery in my E21 went I bought it. Seeing as that is the battery shown in the picture in my owner's manual, I figured it was the original battery. It finally pooped out last year. I happened to see an Interstate Battery store while I had it with me in the car and stopped in. The guys looked at it and said it was just over 6 1/2 yrs old, which means there is an unexplained small gap since I have a 1999 boat but details will interfere with the fun of the story-
He sold Optimas as well as Interstate batteries. He said boaters love the Optima but they get about 2 years max out of them. The warranty, especially the full replacement part of it was really short. Mine was an auto starting battery that cost about 1/5 what the Optima cost yet had a 5 yr guarantee (2 years full replacement). Heck, I could replace it for free if it quit on me every 2 years! I asked the guy if they would give me grief if I use the battery in a marine application. He smiled and said I would be bringing it back to him in my car just as I did this one and no one would be asking anyway! For the price of one Optima I can supply batteries for my boat for over 30 years if they all last as long as the one that went out on me- sold.
PS: For what it is worth, Consumer's Reports really likes the Interstate batteries and I rarely find them to be way off the mark.