Question about Minn Kota Maxxum 70 Freshwater Bow Mount Trolling Motor

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Converting From 12/24 to Starght 24 Volt

I just purchased a new Minnkota trolling motor that is straight 24 volt. My previous trolling motor was a 12/24 volt which had the 12/24 volt switch on it. Per the two batteries, there are four wires (red, black, orange, and white). I'm not sure if I'm getting full power, and when I plug in my on-board charger after fishing, only one battery show as red--the other one is still green, like it hadn't been used. Are my batteries connected correctly for a 24 volt trolling motor. Someone told me that I needed to connect two jumpers to the batteries (negative to positive for both batteries). I'm not sure and haven't tried that. Does anyone have any ideas or remedies to my problem.


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  • Anonymous Mar 22, 2014

    Just bought
    the boat

  • Anonymous Mar 26, 2014

    If red goes to positive and black to negative, why/what purpose does the n/c line serve.

  • Anonymous Mar 26, 2014

    Unit is a Lowrance sonar unit, not a trolling motor. What is the purpose of the third wire on the power line to the unit.

  • Anonymous Mar 28, 2014

    is it possible to connect trolling motor batteries 2 12v parallel with the MK 330 3 bank charger.?

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  • Anonymous Mar 28, 2014

    how to match up a 12/24 volt foot pedal on trolling motor to a 24 volt motor head?



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If it is 24v. then you need to connect 2 battery in parallel. since the battery is only 12v.
if one battery is shoing red and the other is sohwing green, that means you are using 12v only, not the 24v.
connetion as follow:
positve of battery 1 to the motor, the negative of battery 1 to postive of battery 2. the negative of battery 2 to the motor.

Converting From 12/24 to Starght 24 Volt - fee9d8c.gif

Posted on Oct 20, 2008

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The batteries must be connected in SERIES. The method described is proper, but the name of the method is wrong.
On the female plug for the motor on the boat, if you have the wiring for TWO separate batteries coming to the plug, the male plug must have a jumper in it. To find out, disconnect the batteries one at a time and voltage check to see if there are two separate battery systems there. There probably are. If so, the series circuit is provided for in the male plug by the jumper and not in the back of the boat where the batteries must be wired independent of each other.

Posted on Nov 28, 2008


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