Originally Posted by
ThrillSeeker
When I bought my boat last year, it had 2 batteries and a Johnson 12/24 volt trolling motor. I'm buying a new trolling motor soon, and I'm leaning towards a 55 thrust which works on the 12v system. Will I have to make any type of wiring changes to make this new trolling motor work properly?
Yes. Your old motor most likely had 3 wires coming from the batteries. A ground common to both and positive from each. Your new motor only needs 2 wires. Ground and positive. Since you already have 2 installed, connect them in parallel for longer trolling time. Pos to pos and neg to neg.
Fair Winds and Following Seas
Bill H. PTC USN Ret
Chesapeake, Va