With no indication prior to this morning that anything was wrong, the battery would barely turn the engine over this morning. I did get to work and at lunch I went out and check the voltage before I attempted to start the car (voltmeter indicated 10.6 volts). The starter turned over very slow but the engine still started. The battery was going to be replaced as there was a bad cell. When trying to get a replacement (size is a 24). I couldn't locate a battery from other places that had CCA of over 800. I was able to find a size 65 (CCA of 875) that fit(no room to spare in the battery tray). There were plenty of size 24 batteries available with CCA of 550 to 600 range but I aways try to put in a battery with the highest CCA I can find. Just thought I would pass this on to make it easier for some else if they got into a similar problem.