If your thinking about golf cart batteries I'd suggest getting the dimensions of the batteries and being sure they'll fit in your battery compartment. Golf cart batteries are taller and they just barely will fit into my Stratos. I currently have Trojan golf cart batteries and I'm fixing to have to replace them. I'm meticulous about taking care of my batteries and don't really feel like they have lasted as long as they should have. I was thinking about the AGM 31's that are at Sam's Club. They obviously don't have the capacity of the golf cart batteries, but it would be nice not to have worry about water levels.