How do I run two 24v trolling motors.

[JRyno10]

I was wondering if this is possible to do with just two 12volt batteries in a series circuit. The two trolling motors would never be run at the same time, I would have one mounted on the transom and the other mounted on the bow. They TMs are identical, both are 24v 67lb thrust MotorGuide Great Whites. Is this safe to do, or will it cause the motors or batteries any harm? Like I said earlier both trolling motors would NEVER be ran at the same time.

I assume wiring both would be the same as wiring just one. So something like this. But with both TMs connected at the same point.

 

[user 7806]

I don't see any problem in wiring 2 trolling motors to one set of batteries. I would use a circuit breaker on both units.

Might check the instructions for the trolling motors that you have to see the proper place for the circuit breaker whether it goes on the positive or the negative side. It should be as close as possible to the battery.

 

[Andrew04]

It's completely possible, put the tms is in series as well. Keep in mind if you run both at once you will trip the breaker immediately, if your lucky, if not it could get scary. Maybe even switch them to prevent accidentally doubling up.

 

[Rippen Lips]

Correct me if i wrong but the trolling motors will not run in series. The circuit would actually be a series/parallel circuit, with the batteries in series and the motors in parallel. And forgive me for the sloppy Photoshop work its late.

Either of these 2 configurations should work

 

[Frogman Ladue]

That's close. You do have circut protection. What would be optimal is putting the breakers on the + side of the circut. The + side is going to see the most "heat" from the draw, and should the circut need "breaking" you'd want all + removed from what ever device is present.

 

[user 7806]

I like this setup also, both motors are independent of each other and could be run at the sametime but battery life would suffer.