Harley Davidson Battery question

Yep, put it on a tender in the winter.
I get 3-5 years out of my harley batteries. pretty much the same from non harley batteries.
On my crotch rocket though, seems every 2 years I am replacing the battery. No matter what brand I pick up.

Same with car batteries. They all seem to be about the same. No longer do you get a battery from autozone that will last you 12 years.