I bought a new Catalina 400 MK II(hull#233) and took delievery in May 2001. I have the standard wet cell batteries that came with the boat and I think they are goingbad. I also have a Heart Interface, Freedom Marine 20 Inverter/charger, 2000 watts/100 Amp charger with a Xantrex Link 1000 panel.I thought my charger was over charging since my batteries started boilng but I think my batteries are going after almost 4 years of use.I am requesting some comments from Catalina 400 owners on Water vs Gel vs golf cartbatteries. I understand the golf cart batteries have more storage and are lighter.However, do they have too much height to fit in the battery well? I also heard if youover charge gel batteries the are cooked and gone. Thanks for you comments.William T. Allen "NanSea"