P500 Location of 2nd battery

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rheaslip

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Related to my first post, I was originally thinking to place the 2nd battery under the front hood. But I believe the isolator needs to be close to the starter battery, so I think under the seat may be a better spot.
What do you think?


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Mudder

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Related to my first post, I was originally thinking to place the 2nd battery under the front hood. But I believe the isolator needs to be close to the starter battery, so I think under the seat may be a better spot.
What do you think?


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Under the seat would also help with the center of gravity. That would keep the the under hood space for power steering and a Choog box.
 
nctrailboss

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I have mine under the hood ,wired through a battery disconnect on the dash and then to the winch contact .Very simple and short wires.I can put it in line when I want.I leave it on most times while running,to keep it charged,turn it off while winching so I'll have starting power if things go bad.I used a battery just like the stock one in the rear.
 
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rheaslip

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[mention]nctrailboss [/mention] thanks for sharing. Did you use an isolator and if you did, where did you place it? I read it should be close to the starter battery but I saw a YouTube of someone putting it in the front, under the hood. Not sure if placement of isolator affects charging between both batteries maybe?


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trigger

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Made sense to me too.

 
nctrailboss

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Under the seat would also help with the center of gravity. That would keep the the under hood space for power steering and a Choog box.
I still have room for the Choog box and P.S.
 
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nctrailboss

nctrailboss

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[mention]nctrailboss [/mention] thanks for sharing. Did you use an isolator and if you did, where did you place it? I read it should be close to the starter battery but I saw a YouTube of someone putting it in the front, under the hood. Not sure if placement of isolator affects charging between both batteries maybe?


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No isolator,just a battery disconnect mounted on the dash. DSC01236DSC01237
 
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rheaslip

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Made sense to me too.


Your prior thread, what an interesting read. I think you caught me up on weeks of independent research and time in my own head thinking about this.

I have to break this project down into 2 jobs. First, placement. You have helped me with that. Second wiring. I found an informative link on isolators VS separators. Based on your experience, and knowing I have a 15 year old using it too (with all the accessory toys), My #1 goal is the factory Honda. 2nd is using the accessories. I’m still thinking thru this one. Thanks again for sharing your experience



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Mudder

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Bet @Hondasxs could help explain things as well. Saw his products in the Club Store.
 
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pappyo

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2nd.yellow top Optima under driver seat.
Battery isolator with disconnect on 2nd battery only.
All add on accessories connected 2nd Battery are fuesd using a isolated junction block.
If you put a disconnect on the isolator GROUND prevents discharge of both batteries when setting for long periods
Add a battery charge plug connector to the Main battery side ( Start Battery )of Isolator.
To charge both batteries TURN ON BOTH DISCONNECTS the main battery will charge 1st.then 2nd Battery.
The added down low weight helps
2nd. Battery
UHM Skid & Arm guards
4x3 offset wheels 27 "" ITP XTR Tires

20200725 123331
 
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R

rheaslip

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Thanks again for all the help on the dual battery. I have my 2nd battery under the seat, true isolator, accessory fuse box and noco charger. The true and fuse box sit in a converted kayak battery case. Using a Crossroads 3D panel to house the volt meter, USB, front and rear rocker, audio and winch. At some point, a breather to take some pics to share!


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