I have a 2006 290SCR and I have probably installed 6 batteries in it to this point. Cheap West Marine batteries, an Interstate or two, and I have never replaced all 3 at once. Some people on the dock say you should always replace all the batteries at the same time? My question is this: should I bite the bullett and buy 3 AGM batteries, or maybe 3 Optima batteries as compared to the standard lead-acid? And I have also been told that all 3 batteries must be the same (starting or trolling). It would seem to me that my port and starboard batteries should be the starting type, while my house battery should be a deep-cycle. Just tired of messing with batteries in general and I'm ready to put this puppy to bed before the season starts back up.
Thanks
