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trolling motor wiring

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I am going to install a 12v motorguide wireless motor to the bow of my boat.  My question is do i wire the trolling motor battery to the cranking battery in parallel or leave it on a seperate circuit.

I was thinking to leave the motor on a seperate circut and put the fishfinder/gps on the same circut or should i put the ff/gps on the cranking circut?


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Put the tmotor battey only to the tmotor.  Hook electronics to cranking battery.  Do not hook crank and tmotor batteries together.

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How many batteries do you have on your boat? Sound like you only have one. If it is a deep cycle battery you can hook both your outboard and electric motor to it. That is how mine is hooked up. If it is a cranking only battery do not do it. A cranking battery will not last very long. If you have a cranking only battery you will need a deep cycle battery to run your electric motor.


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