So my original battery was giving me issues so I took it in and had it tested. Gent said it tested fine, but needed a charge. I said nope been on the battery tender the whole time. I want a new battery.
I decided on the Duracell Ultra Model DURAGM-20L it seemed to have an advantage on cranking amps and came with a 2 year warranty.
Duracell Ultra 20L-BS AGM gray case replacement battery designed 100% spill proof and ready to go the minute it's installed. Perfect replacement for Harley Davidson and more
I had good luck with mine, but it started to poop out right at 25 months. I don't keep in on a tender over the summer - it's rare to go more than a few days without riding - so it might be sulfated. I got a noco to keep it on over the winter and it's been on that for a month or so. It's starting to act better, but I'll be replacing it in the spring.