36v on a 24v trolling motor

Not gonna lie, I have to set my pride aside and admit I do not know much about how to set up or fix my electronics on my boat. It looks like I have 36v of batteries pouring into my 24v trolling motor. I would hate to burn it out. I added pics so y’all can see what I am talking about. Does anyone know how I’d go about fixing this issue? Otherwise, I’ll have to run over to Fun-n-sun! Thanks.

Also, on the first pic, there are four batteries. The two in the middle, and one on the left and right of course. The one on the left is a little harder to see.

Hard to see whats what from pictures, but I only see 1 jumper wire going from + on one battery to - on another battery. I don't see a jumper between the 2 batteries side by side. Looks to me the 2 batteries on the left side of the boat are the only two connected in series to yield 24 volts. However, I could be wrong, hard to tell from pics where the wires are going to.

Which batteries are your trolling motor leads connected to?

Have you actually traced all the wires? My guess is there’s only 24 on it and the other battery is for something else.

I see 4 batteries. Maybe 1 is for the electronics, 1 for the big motor, 2 for the trolling motor but that is just a guess because I can't see the wires good enough to tell what is what.

Thank y’all for helping out. I’m going to go take some more pictures and add them to the post to try and get a better angle.

Here is a video of the whole system set up. It’s 50 seconds.

https://youtu.be/wJMELI9U6_I

Have to follow all the wires, but initial glance, the starboard or port box appears to be main battery for cranking. The port box could be isolated to electronics. I only see 24 volts in series, though there may be a parallel connection to port box. You really need to diagram it out with where the wires are going and we can help.

Sounds great. I appreciate the feedback. I’ll work on that right now. Again, thanks for everyone’s help so far.

If you were putting 36v thru a 24v troller, I gotta believe you would have blown a fuse.

The fuse may or may not have blown as fuses blow on over amperages and not voltage. Supplying 36V to a 24V trolling motor would surly fry the computer system if there is no internal voltage regulator. Chances are their are not.

Read across the wires coming to the trolling motor with a voltmeter. If it’s 36v and you want 24 just take the one battery out of the series.

I finally figured it out and got it fixed. Thanks for all the replies from y’all. I learned a lot today

What was going on ?

AND WHAT DID YHOU FIND OUT?

Quickest, most direct answer if you're unsure of how to map out your cable runs.

So I noticed I had a 46v fuse and that all three of my batteries were hooked up to the trolling motor. It was only a matter of time till my fuse would blow up on me. Also, I saw that my cranking battery wasn’t even hooked up to my charger. So basically, I rewired the batteries to have just 24v running in the trolling motor and then I reconnected my cranking battery to the charger. After doing all of that, I now have an extra battery sitting in my boat. Sorry for my limited terminology, but after a lot of help on here and some YouTube videos and help from a buddy, I was able to get it fixed!

Also if anyone is interested, I have a 112lb thrust / 36v fortrex for sale for 300 if anyone wants it. I used to have that, so that’s why I had 4 batteries in my boat.

You might want to invest in an inexpensive digital voltmeter. It's hard to troubleshoot electrical problems without one.

You can tie the extra battery in parallel with one of the other Trolling motor batteries. Just hook the + to + and - to -
This will take advantage of the extra amp hours of the extra battery.

I'd either pull the extra, or parallel it to the cranking battery keeping in the 12v loop. I don't know about piggy backing it to just one side of a series'd 24v loop? Maybe it'd be fine, I don't know.