Back when I worked for Napa I bought a aged out (on the shelf for more than a year) battery, I needed one for my camaro and then it got popped into my ‘95 truck, and then into my ‘05 truck. As it stands that battery is 13 years old. It’s at the end....won’t start after it sits more than a few days to a week. Previous to that I had a 12 year old interstate in my 92 ford pickup - that one went strong all the way until the unforwarned “click” of doom and no starty. My alero which aside from being moved a couple times has been sitting for the better part of a year until tonight when I loaded on the trailer is rocking a 6 year old superstart from oreillys. Popped right off. Even though it’s been stupid cold for weeks and haven’t touched it since I think September. Maybe I just have stupid super human luck with batteries? Johnson controls or east penn get my vote. In a little biased as I sell east penn but have also had stupidly long lasting east penn batts so take that for what it’s worth. I would avoid exide I used to warranty those out all the time. I think the wty rate dropped something crazy like 70% when Napa dropped exide and picked up east penn.