My yacht is a 30ft wooden Randell?

-How do I tell if I have a Diode Separator? and what is the common side of the bridge.

I suggested two ways of connecting 1. direct to one battery or 2. to the Positive and Negative on my controller.

Thanks for your responseNice boat, you will have to look at the Electrical Panel and any wiring diagrams that are for that vessel.
that is not a Yacht , that is a 30 ft boat