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  #37  
Old 02-07-2013, 07:55 AM
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Re: Secondary Battery Ideas!!!

Quote:
Originally Posted by TroyD View Post
I've only had my JGC Laredo for about four weeks
Troy, slide your front seat forward all the way and recline it forward all the way as well. There is a panel on the floor under your drivers seat. Pull up on it (there are a few clips around the edge holding it down). You should find a nice compartment. For us with the Quadra-Lift suspension, that compartment is full of electronics.


As for the rear bench idea... Yea, the rear bench does move forward and down as you put the seat backs down to increase storage in the trunk area.... I swear, I will find a place. I'm back to the spare tire area again.....

I do not care for the storage cubby's around the tire. Those will go. Maybe I could flip the spare and put a battery in there or get 2 smaller batteries and place them around the battery wired in parallel. Really don't want to do that but if nothing else I might have to. I will have to look into putting it on top of the Main battery as well if it would fit.
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  #38  
Old 02-07-2013, 02:41 PM
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Re: Secondary Battery Ideas!!!

Not much space "around" the spare tire without cutting the plastic trim. I measured the inside of the spare and without flipping it, may could fab up a mount to attach to the steel rim inside. About 18" across and no more than 6" in depth. The foam jack thing is already gone. Have a tool bag for that nonsense.
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  #39  
Old 02-07-2013, 04:55 PM
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Re: Secondary Battery Ideas!!!

Quote:
Originally Posted by lysol View Post
As for the rear bench idea... Yea, the rear bench does move forward and down as you put the seat backs down to increase storage in the trunk area.... I swear, I will find a place. I'm back to the spare tire area again.....
In my Pathfinder (previous truck) I had a couple of 30Ah sealed batteries under the 2nd row seats, mainly for lighting when camping and whilst travelling to keep the fridge going when we stopped during the day. When stopped for longer periods the battery box with the 100Ah AGM was dragged out for fridge and lights.

In the back of the JGC I was looking at the area on the right under the rear quarter panel window. On the Laredo this is an empty space with a plastic storage bin that goes down below the floor level of the main cargo area. If I took the carpeted trim out against the RHS of the vehicle there would be an extra half an inch or so of room that would probably allow my 100Ah battery to fit in nicely. Securing it would be the hardest part. I don't want to cut up my existing trim though, so I've been scouring factorymoparparts.com to try and work out which bit to buy (2012 JEEP GRAND CHEROKEE Parts - Mopar Parts Online - it's one of those bits!)
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  #40  
Old 02-08-2013, 07:47 AM
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Re: Secondary Battery Ideas!!!

I believe my factory sub is there. I was thinking the same but over on the left (US Drivers) side. Maybe an audio shop can fab up a replacement fiberglass carpeted panel there and make it bulge out more to allow space for a 100AH battery. It couldn't come past the spare tire floor lid though.
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  #41  
Old 02-08-2013, 09:10 AM
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Re: Secondary Battery Ideas!!!

According to Odyssey's website, the PC2150 ST-M (Both SAE and stud posts) (100AH) battery might do the trick.

The way the spare tire is held down is by a screw cap that screws to a bolt through the center hole in the rim. The cap is sitting higher than it needs to be. Maybe I could replace it with a washer and bolt.

Here is the measurements for the battery. If I place it on it's side, Then sides A & C are well within the 18" in diameter inside the spare rim. Side B would be pushing the limits of being too tall to close the floor over the spare tire area. Would need a way to mount it to the spare yet allow it to be removed somewhat easily to pull the spare out.

A=13" / B=6.8" / C=9.41"


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  #42  
Old 02-09-2013, 06:39 PM
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Re: Secondary Battery Ideas!!!

Do you know how easy this would be if someone would offer a rear bumper with a swingaway tire mount... lol. It would open the entire spare tire well inside the Jeep. I could put so many goodies in there.
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  #43  
Old 02-09-2013, 09:32 PM
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Re: Secondary Battery Ideas!!!

I made a model of the Odyssey PC2150 battery out of cardboard to play around with placement. The model came out a little larger than the specs on the battery which is better because if this will fit, the real battery will fit better.

13.00 x 9.0" x 6.8" - Odyssey specs (the 13" also includes the length of the posts which are 0.8" high. So technically the height of the battery is about 12.30".)
13.25" x 9.5" x 7.0" - My model specs

I played around with a few spots and so far, only the inside of the spare tire will work. I have the "full size" spare BTW.

Showing a Size comparison of the battery and the foam insert that goes into the spare tire:





Spare tire:





Removed the bolt that holds down the spare. (What I'm thinking here is have a low profile bolt hold the battery tray down which in turn will hold the tire in place):





First I stood the battery up on it's 9.5" end. It was too tall:





Then I stood it up on it's 7.0" (real spec is 6.8") end. It was perfect. I could close the lid with no problems. If the real battery claims 6.8" on that side, that should leave some room for a battery tray underneath:





Comparing it to the foam insert:





This was one of my original placement ideas. Put it behind that carpeted panel but I believe there is a bunch of stuff behind that.





I could always remove the sub and go without it but I prefer not too.



Now for some spots in the interior. On the seat for size comparison:



I saw someone make a battery box to mount here and be removable. Would work if you only need it at certain times. But I want it in the vehicle always:



Getting at the main battery:





The next 2 pics , I try to show putting the battery on top of the main battery and it just wouldn't fit between the top of the main battery and the bottom of the passenger seat. I'm sure a smaller battery would fit though:





Just showing the underside of the battery compartment panel. You can see where the clips are for removal:



Under the rear passenger bench yields no room. Plus, when you lower the bench seat backs to gain more rear storage capacity, the bench actually lowers. So most likely only a very slim battery would fit there:



The last 3 pics are just to show the space or lack of space under the hood. Would have to get a cold-air intake and cut the tube short to put the filter short of where the stock air box is now. Then put the battery in the empty stock air box space. But I do not want to do that:





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  #44  
Old 02-10-2013, 08:54 AM
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Re: Secondary Battery Ideas!!!

Another idea that came to me was to flip the spare. Have a custom metal fab shop make a battery box that secures to the floor where the spare originally secures to. Then weld a nut on top of the battery box. Lay the spare tire over the box and secure the spare wheel to the top of the box.

This way, I wouldn't have to move the battery in the event of a flat tire.
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  #45  
Old 02-10-2013, 12:51 PM
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Re: Secondary Battery Ideas!!!

I like that! Great idea!
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  #46  
Old 02-11-2013, 09:25 AM
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Re: Secondary Battery Ideas!!!

I found a great link about the benefits, how's, do's and don't s of auxiliary batteries:


Battery Power @ ExplorOz Articles


Makes me feel better about my 100AH battery choice.
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  #47  
Old 02-12-2013, 09:56 AM
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Re: Secondary Battery Ideas!!!

Still undecided on where to put the battery.

1.) Leave the spare alone and drop the battery inside.

Pros:
*The custom battery box would essentially replace the bolt holding the spare down.
*Box would be easier and simpler to make (wouldn't have to mount the spare rim to the top of the box)
*Easy access to the battery(not sure how important this is)

Cons:
*Wires would have to run over the edge of the tire or through the rim. (I don't think going through the rim is an option)
*Would have to move battery in the event of a flat tire. Could leave an extra 2 feet of cable to position batter out of the way without disconnecting the terminals.


2.)Flip the spare and mount the battery box inside the rim between the floor and the inside of the rim.

Pros:
*In the event of a flat tire, The battery wouldn't have to be moved at all because the battery box is essentially under the spare tire and the wires could run under the tire as well.

Cons:
*Box would be slightly more complicated because the top of the battery box would have to have a strong mount to screw the spare tire into. I don't think this would be a show stopper because I'm sure a metal fabrication shop could make something.
*Would have to remove the spare tire to access the battery. I really don't think this would be important because I would be mounting a thick gauge fuse distribution block somewhere with easy access anyway.

I've attached a very detailed Photoshopped (Microsoft Paint) picture of my idea:

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  #48  
Old 02-12-2013, 10:22 AM
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Re: Secondary Battery Ideas!!!

I like the Idea of placing it "under " the spare ( flipping the spare over) . This way you dont have to remove the battery to use your spare .
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