A Napa legend was in the wife's roadster when we bought it.. 880 CA @32 deg. 680 CCA @ 0 deg. It bit the dust after sitting a week during snow and mess.. charged it up and she ran it 3 days, then got parked for 4 days with more snow. It would not even hold a charge after that. The gentleman at Napa was kind enough to honor the 18 month warranty even though we were weren't the original purchasers. I'm an Autozone fan myself.. but the price was right for this one..