I used duracell agm's from sams under $200 for 31's only have a couple year's on them but so far so good. FWIW my last set of interstate lead acid did not make it even two years before boiling off and causing some almost deadly fumes in the cabin.
The following 1 user Likes reeltimebrad's post:1 user Likes reeltimebrad's post Folkvord (10-30-2021)