[laverdur]

You can buy a lot of Centennial deep cycle lead acid batteries for the price of one lithium battery. I keep my Monty on shore power when stored at home. I rarely dry camp (once in 12 years). I got seven years of service our of the pair of Centennial batteries that came with my Monty. The Centennial is a maintenance free battery. Was disappointed that I could not get Centennial again when they failed and had to settle for Interstate. Now I have to check electrolyte levels every 2-3 months. Make sure your converter will change a lithium battery. Last I knew, it took a special converter so that adds to your cost.