Hello everyone! I am a brand new owner of a 1989 25' Carver Montego. It's a little bit old but in very good shape. My wife surprised me with it. This is my first boat and it is quite overwhelming. I have it in the marina and am hooked to ship to shore power but my cabin battery died. I can't figure out why it isn't charging. The battery was new last year and so was the charger. I think it is something simple on my part. If anyone out there has the same boat I would appreciate any help and suggestions I can get.