Wiring Advice Needed for 24v Trolling Motor.

[luckyinkentucky]

OK. To make a long story short .....

My boat has a charging system that charges all three batteries (1 cranking & 2 Trolling), but the selector switch at the bow has to be set to 12v to charge.

I bought a 24v trolling motor.

What do I need to do to connect my 24v trolling motor up to the old plug which is a 12/24v - 3 prong circular male adapter from the trolling motor to the female adapter fixed on the panel on the bow? Which side of the male plug will be the 24v side OR is it set by the selector?

I just don't want to have to rewire my whole boat since I'm an amateur at best with electricity. Also, If I rewired it I may mess up my charging system which was installed from the factory. I cannot see it, but I assume it just runs off of an alternator like an automobile engine.

 

[Silvertip]

Re: Wiring Advice Needed for 24v Trolling Motor.

You don't have to change anything. The only thing you need to do is figure out which terminal on the receptacle is 24 volts and which is ground. Unless someone wired it otherwise, the red wire should be +24V and the black wire is ground. The orange wire is +12V which you will no longer use. The new motor will have just two wires (red and black). Red is +24V and black is ground. You will need a three prong plug that matches the receptacle. Splice that new plug onto the motor harness and away you go. The orange wire will not be used. Just so you know, the 12/24 switch breaks the series connection between the two trolling motor batteries so that a 12V charger can charge them.

 

[luckyinkentucky]

Re: Wiring Advice Needed for 24v Trolling Motor.

Thanks. I also ran across a little black box connected to the + side of each battery. Is that a fuse? It doesn't seem to have anything to push like a circuit breaker, but it is a replaceable fuse or something?