I use a full size battery from Walmart in my Wards
garden tractor. I tried the battery with the posts, but I burnt the paint on my hood so I installed a battery that has the side connections like what GM cars had. I replace the battery cables too. I have a starter/generator and you don't get the mechanical advantage with it like you do with an electric starter that engages the ring gear. Hal
PS;; You can see the battery in this picture.