Battery Switch Operation

WolfsDen

New Member
Apr 19, 2009
4
Southern Maryland
Boat Info
1989 Weekender 300
Engines
350 Mercruiser
Can someone tell me what the battery switches do on a 1989 300 Weekender? The port switch has two positions - on and off. The starboard switch has four positions - off, 1, both, and 2. The owner’s manual does not provide an explanation and other postings on this forum provide an incomplete explanation.
 

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