Dead Battery. Want my warranty covered.

Had the biggest baddest Sears Diehard battery I could find in my Dart. I put it in in 2000 and replaced it (only because I was worried I was pushing my luck) in 2014. I replaced it with a another Diehard Platinum that's still in there and has never given me any problems. I kepp it on a maintainer any time it's in the garage. Hopefully I'll get the same life out of this one.