My Fullriver DC115-12 batteries lasted 11 years and 3 months, that is 123 months!!!, so I bought new ones, and yes, I bought Fullriver again. My old batteries are still alive but their capacity is reduced, I didn’t measure their diminished capacity but it is noticeably lower since they were new. I could still use both of them but didn’t want to go camping with thoughts of potential batteries failures.
Good to hear.
We bought our van used with an AGM house battery.
It was 11 years olds when replaced last year.
Bought another group 24 AGM battery from Canadian Tire.