2nd Battery

[Aussie-John]

Hey Lads,

So I have done a bit of reading and am ready to throw a 2nd battery in the truck. I could put it in the bed, but I am worried about the amount of heat it would be exposed to under the Bakflip. (it gets damn hot under there)

I had thought of mounting on top of the wheel arch in the bed, right behind my swing case - but anyways...

If I choose the under the hood location, I gather the install will be the same for me down here in Australia (Right hand Drive)

I need to yank the stock air box right? But replace with what???

And I need a 2nd battery box - Can you please advise the exact one that fits?

Mine is an 2018 Laramie 5.7H.

Cheers
Johh

 

[OC455]

Being curious here, but what is the need for the 2nd battery?

 

[radkawi]

Hey Lads,

So I have done a bit of reading and am ready to throw a 2nd battery in the truck. I could put it in the bed, but I am worried about the amount of heat it would be exposed to under the Bakflip. (it gets damn hot under there)

I had thought of mounting on top of the wheel arch in the bed, right behind my swing case - but anyways...

If I choose the under the hood location, I gather the install will be the same for me down here in Australia (Right hand Drive)

I need to yank the stock air box right? But replace with what???

And I need a 2nd battery box - Can you please advise the exact one that fits?

Mine is an 2018 Laramie 5.7H.

Cheers
Johh

Odyssey makes some smaller spill-proof flex mount batteries you could mount under the hood just about anywhere. Not sure about stock in your neck of the woods but worth looking into. I had a side by side a few years back that I added one of these to. Made a huge difference when running a winch and lighting.

https://www.amazon.com/ODYSSEY-PC68...ocphy=9011840&hvtargid=pla-567025626926&psc=1

 

[Aussie-John]

The reason for the 2nd battery is to run accessories.

It’s not uncommon for me to shooting for a couple of days that will see the truck sitting, unstarted for 2 full days and nights.

I have a fridge, lights and other bits that will most certainly drain the main battery to dangerous levels over that time. Hence the need for a second.

If I take my camper, then I’m good. That is fully kitted out. But it’s not always appropriate to drag it along.

Personally I’m looking at about 80ah to 100ah and probably AGM.

Cheers



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[crash68]

Consider going under the truck, they make battery boxes you can bolt to the frame and most AGM batteries can be mounted on there side. Makes sure to use a constant duty solenoid to isolate the second battery from the main. Use an SPDT (ON-OFF-ON) switch wired to the solenoid so you can select to turn the solenoid on when the truck starts, keep it off(isolated) or stays on constantly (in case you need to jump start yourself)

 

[Aussie-John]

Thanks man.

Wiring is not the issue. Location is.

I did look under the bed and there’s a fair bit of room up under their. But if there is a better way under the hood, then I’m happy to look at it.


I just don’t know if it’s all the same for my right hand drive.





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[Wild one]

Hunt up a Cummins powered 2500+ truck and look at it.They have dual batteries under the hood,and you should be able to use their extra battery box

 

[Aussie-John]

Hunt up a Cummins powered 2500+ truck and look at it.They have dual batteries under the hood,and you should be able to use their extra battery box

Hmm. Not likely down here. There are not that many RAMs on the road here yet.

I’ll keep looking online.





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[wgreggking]

2018 battery box from 6.7 diesel left and right
https://parts.allmoparparts.com/aut...-l6-diesel-engine/electrical-cat/battery-scat

 

[WilliamS]

2018 battery box from 6.7 diesel left and right
https://parts.allmoparparts.com/aut...-l6-diesel-engine/electrical-cat/battery-scat

Problem is the airbox is where the 2nd battery would be in a diesel. Im certain you can fab something up to move the air filter and use the factory 2nd battery bracket.

 

[wgreggking]

pic of a 2016 Turbos though

 

[Aussie-John]

Awesome thanks.

So stupid question....

Battery Tray Right.... is that right looking into the engine bay from the front, or from the drivers seat???




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[Wild one]

Awesome thanks.

So stupid question....

Battery Tray Right.... is that right looking into the engine bay from the front, or from the drivers seat???




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You always look at things as if you were sitting in the drivers seat for north american vehicles,not sure if you guys down under use that same general rule though.

 

[radkawi]

Awesome thanks.

So stupid question....

Battery Tray Right.... is that right looking into the engine bay from the front, or from the drivers seat???




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Always in the direction of forward motion.

 

[Aussie-John]

Thanks lads.


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[jonhimes]

Were you able to get your other battery mounted?