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Dec 30th, 2023
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 Another lithium battery question
#14802121
08/06/23 10:14 PM
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Joined: Oct 2002
Posts: 6,103
ring fry
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My trolling motor batteries have just about had it. Thinking of going lithium. Boat is wired for 24v. It has two positive and two negative wires from the back of the boat to the front where the two reds join and the two blacks join. If I get a 36v lithium can I simply connect the two positive wires to positive and the two negative wires to negative? There are 50 amp relays on both red wires.
Thanks,
Retired grass grower
2008, 2022 NCAA Men's Basketball Champions
GO JAYHAWKS
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Re: Another lithium battery question
[Re: ring fry]
#14802199
08/06/23 11:53 PM
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Joined: Jan 2010
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Dognot
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Is your trolling motor 24 volts?
The only thing worse than a porta potty in the wintertime is a porta potty in the summertime.
You can’t stop the man from learning the hard way or he will continue to be stupid. It’s just the way it has to be......Mudshark
The Lion and Tiger may be king of the jungle. But the wolf doesn't perform in the circus.....UGLYSHCTICK
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Re: Another lithium battery question
[Re: ring fry]
#14802215
08/07/23 12:16 AM
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Joined: Oct 2002
Posts: 6,103
ring fry
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Force. 24 or 36 Currently 24.
Retired grass grower
2008, 2022 NCAA Men's Basketball Champions
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Re: Another lithium battery question
[Re: ring fry]
#14802320
08/07/23 03:00 AM
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Joined: Jan 2010
Posts: 7,612
Dognot
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The only thing worse than a porta potty in the wintertime is a porta potty in the summertime.
You can’t stop the man from learning the hard way or he will continue to be stupid. It’s just the way it has to be......Mudshark
The Lion and Tiger may be king of the jungle. But the wolf doesn't perform in the circus.....UGLYSHCTICK
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Re: Another lithium battery question
[Re: ring fry]
#14802324
08/07/23 03:07 AM
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Joined: Jan 2010
Posts: 7,612
Dognot
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I know this is a 36 volt 3-12v system and what you are thinking about is one 36 volt hattery. depending on wiring size I would say yes but I am no expert. If I understand it right you are wanding each wire to carry half the load? When you increase the voltage the amperage will go down so one set of wires may be enough depending on the size of the wire.
The only thing worse than a porta potty in the wintertime is a porta potty in the summertime.
You can’t stop the man from learning the hard way or he will continue to be stupid. It’s just the way it has to be......Mudshark
The Lion and Tiger may be king of the jungle. But the wolf doesn't perform in the circus.....UGLYSHCTICK
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Re: Another lithium battery question
[Re: ring fry]
#14802329
08/07/23 03:15 AM
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Joined: Jan 2010
Posts: 7,612
Dognot
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https://trollingmotorpro.com/trolling-motor-amp-draw-chart/It appears that a Force needs a 60 amp breaker. I would not run a 50 on each wire, but again I am no expert.
The only thing worse than a porta potty in the wintertime is a porta potty in the summertime.
You can’t stop the man from learning the hard way or he will continue to be stupid. It’s just the way it has to be......Mudshark
The Lion and Tiger may be king of the jungle. But the wolf doesn't perform in the circus.....UGLYSHCTICK
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Re: Another lithium battery question
[Re: ring fry]
#14802332
08/07/23 03:24 AM
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Joined: Jan 2010
Posts: 7,612
Dognot
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It seems to me that you could pull 40 down each wire if you were running 2 and had a problem for a total of 80 and never trip a breaker. Maybe somebody with more knowledge than me will chime in.
The only thing worse than a porta potty in the wintertime is a porta potty in the summertime.
You can’t stop the man from learning the hard way or he will continue to be stupid. It’s just the way it has to be......Mudshark
The Lion and Tiger may be king of the jungle. But the wolf doesn't perform in the circus.....UGLYSHCTICK
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Re: Another lithium battery question
[Re: ring fry]
#14802340
08/07/23 03:54 AM
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Joined: Dec 2008
Posts: 17,810
grout-scout
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If they aren’t 6g, pull them out and wire it properly. You only need 1 positive and 1 negative, along with the proper sized breaker. Your boat sounds Jerry rigged right now.
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Re: Another lithium battery question
[Re: Dognot]
#14802342
08/07/23 03:58 AM
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Joined: Dec 2008
Posts: 17,810
grout-scout
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It seems to me that you could pull 40 down each wire if you were running 2 and had a problem for a total of 80 and never trip a breaker. Maybe somebody with more knowledge than me will chime in. That’s not how it works, the wire won’t split the amperage in half.
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Re: Another lithium battery question
[Re: ring fry]
#14802382
08/07/23 10:57 AM
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Joined: Sep 2008
Posts: 121,182
hopalong
Pescador Loco
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Pescador Loco
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Posts: 121,182 |
yes you can put the 2 together and use current wiring, change to a single breaker tho, force needs a 60a.
my previous champion had the 12/24 wiring and I just connected them together and used existing wiring. my current 202 I rewired with 6ga. so I could use the factory wiring for front power for graphs etc.
" Hop, set the hook"!
hopalong 99,999
TexDawg 99,999
FJB! not my president by a long shot!
lake fork FISHERMANS COVE MARINA/reservations - 903 474 7479
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Re: Another lithium battery question
[Re: grout-scout]
#14802383
08/07/23 10:59 AM
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Joined: Sep 2008
Posts: 121,182
hopalong
Pescador Loco
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If they aren’t 6g, pull them out and wire it properly. You only need 1 positive and 1 negative, along with the proper sized breaker. Your boat sounds Jerry rigged right now. not jerry rigged, that is how they wired the 12/24v stuff. front plug could combine for 24v.
" Hop, set the hook"!
hopalong 99,999
TexDawg 99,999
FJB! not my president by a long shot!
lake fork FISHERMANS COVE MARINA/reservations - 903 474 7479
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Re: Another lithium battery question
[Re: hopalong]
#14802386
08/07/23 11:11 AM
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Joined: Dec 2008
Posts: 17,810
grout-scout
TFF Guru
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Posts: 17,810 |
If they aren’t 6g, pull them out and wire it properly. You only need 1 positive and 1 negative, along with the proper sized breaker. Your boat sounds Jerry rigged right now. not jerry rigged, that is how they wired the 12/24v stuff. front plug could combine for 24v. I know why they used to do it, no need for it anymore and it’s not recommended. If he can afford lithium batteries and a force, he can afford to wire it properly.
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Re: Another lithium battery question
[Re: ring fry]
#14808343
08/12/23 12:42 AM
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Joined: Oct 2002
Posts: 6,103
ring fry
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Decided I really don't need 36v. Went with two 12v 100amp Millertech lithium.
Retired grass grower
2008, 2022 NCAA Men's Basketball Champions
GO JAYHAWKS
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