Got stranded last year with a dead battery and no indication except for the dash light coming on about 30 seconds before the engines died. I'm installing a voltage gauge this year, but don't know what to anticipate for the typical output of the charging rectifier so I can know if it's actually charging or not. I am guessing that it should be in the 13-14 VDC range while the engines are running, but am not sure if that is typical on these boats.
Anyone?
Anyone?