Upgrade Trolling Motor from 12 24
Haney
Posted 6/30/2013 2:13 PM (#649360)
Subject: Upgrade Trolling Motor from 12 24




Posts: 2


Hi I am upgrading my trolling motor to a terrova 80 lb, replacing a 55 lb power drive. Going from a 12 volt to 24 volt system, is my current wiring going to be sufficient for the increased load. I have a 2002 tuffy esox magnum with factory installed wiring. I tried the search feature but couldn't find any info on this. Thanks Dave
sworrall
Posted 6/30/2013 2:29 PM (#649361 - in reply to #649360)
Subject: RE: Upgrade Trolling Motor from 12 24





Posts: 32958


Location: Rhinelander, Wisconsin
Yes.
jjmuskie
Posted 6/30/2013 2:31 PM (#649362 - in reply to #649360)
Subject: Re: Upgrade Trolling Motor from 12 24





Posts: 208


Location: Sun Prairie, WI
someone correct me if im wrong but isn't the load the wires see actually smaller with a 24v vs a 12v system. The higher the voltage the less the amperage draw?
Haney
Posted 6/30/2013 2:45 PM (#649364 - in reply to #649360)
Subject: Re: Upgrade Trolling Motor from 12 24




Posts: 2


Thanks Steve I didn't think I would have to ,but good to hear from an expert on the subject.
jdeezay74
Posted 6/30/2013 2:53 PM (#649365 - in reply to #649362)
Subject: Re: Upgrade Trolling Motor from 12 24




Posts: 256


Location: plant earth
not so much according to ohms law. lets say 12volts 1 ohm= 12amps. now just do the same 24volts 1ohm= 24amps. im not being a smartass either just dont want to see someone use a smaller conductor and have a possible fire or damage to equipment or themselves.
horsehunter
Posted 6/30/2013 4:20 PM (#649371 - in reply to #649360)
Subject: Re: Upgrade Trolling Motor from 12 24




Location: Eastern Ontario
I'm kind of in the same position as Haney and want to upgrade to an I pilot on my 17 foot tin bass boat. My 55 pound thrust has always been adequate and rarely run at more than 50%. So now the question should I stay 12 volt 55 pound I pilot with 2 batteries in parallel or go 24 volt 80 pound I pilot with 2 batteries in series. What are the pros and cons of each? What would give me the longest running time? My wiring is heavy enough for either.
ranger618
Posted 6/30/2013 6:10 PM (#649377 - in reply to #649360)
Subject: RE: Upgrade Trolling Motor from 12 24




Posts: 106


Haney - 6/30/2013 2:13 PM

Hi I am upgrading my trolling motor to a terrova 80 lb, replacing a 55 lb power drive. Going from a 12 volt to 24 volt system, is my current wiring going to be sufficient for the increased load. I have a 2002 tuffy esox magnum with factory installed wiring. I tried the search feature but couldn't find any info on this. Thanks Dave


I don't know what your Tuffy has, but you should have 6 gauge wire whether you use a 12, 24 or 36 volt trolling motor.
If your boat has smaller wire, replace it.

Get the 80 lb. you wont be sorry.
ranger618
Posted 6/30/2013 6:13 PM (#649378 - in reply to #649371)
Subject: Re: Upgrade Trolling Motor from 12 24




Posts: 106


horsehunter - 6/30/2013 4:20 PM

I'm kind of in the same position as Haney and want to upgrade to an I pilot on my 17 foot tin bass boat. My 55 pound thrust has always been adequate and rarely run at more than 50%. So now the question should I stay 12 volt 55 pound I pilot with 2 batteries in parallel or go 24 volt 80 pound I pilot with 2 batteries in series. What are the pros and cons of each? What would give me the longest running time? My wiring is heavy enough for either.


The only reason I can think of to get the 12 volt is if the boat doesn't have room for two trolling batteries.
Get The Net
Posted 6/30/2013 9:17 PM (#649393 - in reply to #649360)
Subject: Re: Upgrade Trolling Motor from 12 24




Posts: 19


Your Tuffy will be fine with the 24 volt system. The 80lb at 24 volt will be less current than the 55lb at 12 volt. Ohms law.
jdeezay74
Posted 7/1/2013 10:22 AM (#649455 - in reply to #649360)
Subject: RE: Upgrade Trolling Motor from 12 24




Posts: 256


Location: plant earth
Here's a chart. Looks like you need 8 to 6 gauge wire for max performance. If its equipped with that your good

Edited by jdeezay74 7/1/2013 11:21 AM
Shep
Posted 7/1/2013 11:12 AM (#649463 - in reply to #649361)
Subject: RE: Upgrade Trolling Motor from 12 24





Posts: 5874


sworrall - 6/30/2013 2:29 PM

Yes.


Yes, you change to the appropriate plug on the TM cable. I think the 12V is a maroon color. 24V plug is Black.
Shep
Posted 7/1/2013 11:16 AM (#649464 - in reply to #649365)
Subject: Re: Upgrade Trolling Motor from 12 24





Posts: 5874


jdeezay74 - 6/30/2013 2:53 PM

not so much according to ohms law. lets say 12volts 1 ohm= 12amps. now just do the same 24volts 1ohm= 24amps. im not being a smartass either just dont want to see someone use a smaller conductor and have a possible fire or damage to equipment or themselves.


Have to apply the correct formula. That isn't it.

24V TM will draw less current than a 12V version at a given thrust.

The wiring in a Tuffy is adequate for either 12 or 24V TM's. Make sure you have the wiring protect by properly sized fuses or Circuit Breakers.

Edited by Shep 7/1/2013 3:58 PM