I had a chance to run around the various battery vendors yesterday and found out a few things. Our local Walmart don't stock the 49 and don't show the 93 in their book. Case/IH have the 31 with 850 CCA on their showroom floor $115 1 yr. full replacement warranty. The local Batteries only store says the 31 is their most popular semi truck and farm tractor battery and had the most reinforce case and around $120. Do any of you use the group 31, if so, what do you think of it? I probably have the room for either the 49 or the 31, so, its just a matter of getting the most for my money. bjr