Same here I got about 3 in a half years out of the original. Replaced it and added a 2nd battery under the seat of the same make to run all my accessories. It’s been a great solution, I had battery problems when I had my lights, music, and then wench running.
I do have a question though, I came across a good deal on a 2012 Rzr and noticed it had a full size car battery, Optima gel battery at that, the red one. What are yalls thoughts on that? It does fire up nicely unlike my Z8 so it makes me think it’s a good idea but idk.