I have been using your batteries in my 5th wheel for 6 years. Although these batteries are still good I will need to replace them eventually. Your website indicates that you no longer supply batteries, only the oil. Since I have had such good service from my current batteries I would like to replace them with at least equivilent units and add your oil.
My question is what batteries are at least equivilent to the ones you supplied to the R V manufacturer? They are 12volt deep cycle group 24 batteries.