Motorguide Wiring 550 Brute

Alpinegold

Petty Officer 3rd Class
Joined
Mar 8, 2007
Messages
99
I have a Motorguide 550 Brute 41 # thrust that came with a 1979 Ranger V178. I feel like there is integrety in the wiring panel at the front of the boat. It has 4 wires coming from the back of the boat. The plug that goes to the trolling motor is 3 prong. My question is how do I wire the batteries in the back. I am wanting 12 / 24 v system. Have cranking battery and two batteries for the trolling motor. The front panel has 12 / 24 charging switch. The on / off comes from a foot switch. It appears to be just a loop of negative, The system never had a battery switch so I would like to avoid that. On the head of the trolling motor, it has a 24/12 / off switch.

I am currenty running the trolling motor at 12 voits by hooking just 2 wires to one battery ( black and red ).
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Motorguide Wiring 550 Brute

I think this is the system you have. Red/Black on the trolling motor is 24V. Orange/Black is 12V.

WiringDiagram.jpg
 

Alpinegold

Petty Officer 3rd Class
Joined
Mar 8, 2007
Messages
99
Re: Motorguide Wiring 550 Brute

Sir,

You are a gentleman and a scholar. You also know your Motorguide wiring and I am very grateful for your response. You were dead on bullseye and that old trolling motor is ripping 12/24v at the flip of a awitch.!!
Again, Thank you.

Alpinegold
 
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