Cable 2nd battery in rear of cab

[mark_anderson_us]

Hi all. I’ve done a rear seat delete on my 2020 ranger FX4 lariat. I am installing a redarc system and a lithium iron phosphate battery. I need to run four gauge cable from the battery to the rear of the cab where the rear seat used to be. All I see is a rubber grommet next to the passenger seat and the driver seat, or the firewall.

I don’t think there will be enough space to run 4 gauge wire in the door sills Anyone got any suggestions about the best way to run it

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[P. A. Schilke]

Hi all. I’ve done a rear seat delete on my 2020 ranger FX4 lariat. I am installing a redarc system and a lithium iron phosphate battery. I need to run four gauge cable from the battery to the rear of the cab where the rear seat used to be. All I see is a rubber grommet next to the passenger seat and the driver seat, or the firewall.

I don’t think there will be enough space to run 4 gauge wire in the door sills Anyone got any suggestions about the best way to run it

HI Mark,

You might go through the rear Cab vents between the box and the cab back panel. Are you sure No 4 is robust enough? I have 6 AGM 6V batteries in the nose of my RV and the minimum is No. 2.

Best,
Phil Schilke
Ranger Vehicle Engineering
Ford Motor Co. Retired

 

[OFC Ranger]

Hi all. I’ve done a rear seat delete on my 2020 ranger FX4 lariat. I am installing a redarc system and a lithium iron phosphate battery. I need to run four gauge cable from the battery to the rear of the cab where the rear seat used to be. All I see is a rubber grommet next to the passenger seat and the driver seat, or the firewall.

I don’t think there will be enough space to run 4 gauge wire in the door sills Anyone got any suggestions about the best way to run it

There is an unused rubber grommet in the driver side floor board. This is one place I used to run a bundle of wiring.

I'd say at minimum its 1" in diameter.

 

[Danager]

I would run the cable under the truck, properly protected. Bring it back into the truck by drilling a hole and using a watertight grommet.
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[OFC Ranger]

I think Phil has the best idea in running it up under the truck then into the back via the rear cab vent area. This is a pretty big opening to work with. It is how I get juice from my control boxes to my rack lighting.

Picture was an "in progress" thing, but that bundle of wire on the left is 10 x 16 gauge. Surely its enough space to run a single 4 gauge wire.

 

[mark_anderson_us]

HI Mark,

You might go through the rear Cab vents between the box and the cab back panel. Are you sure No 4 is robust enough? I have 6 AGM 6V batteries in the nose of my RV and the minimum is No. 2.

Best,
Phil Schilke
Ranger Vehicle Engineering
Ford Motor Co. Retired

Hi Phil

Thanks for reply. Whereabouts are the rear cab vents?

Thanks for heads up on wire gouge too. I'm limiting charging current from alternator to 30amps so 4AWG is actually way overkill.

Best

Mark

 

[mark_anderson_us]

There is an unused rubber grommet in the driver side floor board. This is one place I used to run a bundle of wiring.

I'd say at minimum its 1" in diameter.

Thanks. I saw same on passenger side. My biggest challenge in using those is getting the wire to the rear of the cab. Any suggestions how to route from there (2 x 4AWG and 1 x 12AWG)

 

[mark_anderson_us]

I think Phil has the best idea in running it up under the truck then into the back via the rear cab vent area. This is a pretty big opening to work with. It is how I get juice from my control boxes to my rack lighting.

Picture was an "in progress" thing, but that bundle of wire on the left is 10 x 16 gauge. Surely its enough space to run a single 4 gauge wire.

Awesome. do those holes go straight through to the cab. I have an amp (I think) right around there.

Could you describe/indicate in your picture where the vent is? Wouldn't running wires through the vent interfere with it's operation? I understand it opens and closes

 

[OFC Ranger]

Awesome. do those holes go straight through to the cab

If you pull the carpet back from the wall (below the hard plastic) behind the passenger seat on the driver side you will locate an unused rubber grommet. Cut to size, or take it out, put throught the wire you want then seal it up with something like gasket maker.

In my case my control box wire runs from the front of the cabin, under the middle console, under my back seat, to this location where my function board is, then out that grommet and straight over to the hard plastic grommets of the truck bed (which I drilled holes in and installed cabe grommets).

 

[mark_anderson_us]

If you pull the carpet back from the wall (below the hard plastic) behind the passenger seat on the driver side you will locate an unused rubber grommet. Cut to size, or take it out, put throught the wire you want then seal it up with something like gasket maker.

In my case my control box wire runs from the front of the cabin, under the middle console, under my back seat, to this location where my function board is, then out that grommet and straight over to the hard plastic grommets of the truck bed (which I drilled holes in and installed cabe grommets).

Where did you buy that grommet? (I need to run cables to the bed too)

 

[OFC Ranger]

Where did you buy that grommet? (I need to run cables to the bed too)

Uh, I have two of those oval grommets in my bed at the rear. Came that way from factory.

I drilled three holes into them to install the smaller wire grommets.

The wire grommets you can get all kinds of styles and sizes on Amazon.

https://www.amazon.com/gp/product/B07YDXK1TQ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

[mark_anderson_us]

Uh, I have two of those oval grommets in my bed at the rear. Came that way from factory.

I drilled three holes into them to install the smaller wire grommets.

The wire grommets you can get all kinds of styles and sizes on Amazon.

https://www.amazon.com/gp/product/B07YDXK1TQ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

[mark_anderson_us]

Uh, I have two of those oval grommets in my bed at the rear. Came that way from factory.

I drilled three holes into them to install the smaller wire grommets.

The wire grommets you can get all kinds of styles and sizes on Amazon.

https://www.amazon.com/gp/product/B07YDXK1TQ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I need to check. Mine has ford spray in bed liner. I assumed they were metal

 

[OFC Ranger]

I need to check. Mine has ford spray in bed liner. I assumed they were metal

They are like a hard plastic, I used a trim removal tool to pop them out.

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