ARB Slimline 100 (LiFePo4) in USA

I have been struggling to find a happy solution!

I'm good with removing the trim/padding/as much as I can behind the back seat.
Sacrificing the 60 or the 40 seat itself seems to be more then I'm willing to do, and an often used solution.

After months of waiting, everything else has now been delivered, and power is the only unsolved problem!

Over the months the best thing I could find was the Renogy Rego.
https://www.renogy.com/products/rego-12-8v-104ah-super-slim-lithium-iron-phosphate-battery
Really, it was too big to fit two and I would need a separate BMS, DC-DC, MPPT, more fuses and breakers.

Then I found the ARB, it will let me put 2 behind the seat and only needs an inverter to finish the electrical setup.
https://www.arb.com.au/slimline100/
Any ideas on how to get my hands on a pair of these in the US - west coast? They seem to not be leaving the Australian market right now.

A 1.5" C channel, pushing the seat forward, will allow for two slim self powered subs and the inverter to all be mounted under the batteries.


So far this seems to be the best/only real solution to keep a complete back seat while using a turnkey solution.
I'm open to advice/suggestions even going a different route. -Thanks

As for a DIY battery; a 4xEVE 280 is an option. Would be my first battery build, and not a lot going on.. I would just hate to do some simple mistake and have some catastrophic BS result, so I'm looking for a turnkey.

Goal..
Keep the 60 and 40 seat sides!
Add 1k Inverter.
Add LiFePo4 12v Amp Hours.

Wants..
As much ah as I can fit
2k inverter
dc-dc
mppt
retain some sub in the truck

 

Well this is an interesting addition to the market segment... I've got a Renogy Core mini 100Ah self heated sitting in a box along with their IP67 DC-DC/Solar charger combo, but no truck to test fit/install them on.

 

LiTime makes a slim 100ah LiFePO4 . not all the features of the ARB but maybe an option.

$460 LiTime 12V 100Ah Slim LiFePO4 Battery-2.36" Ultra-Thin Design, Built-in 100A BMS with Low-Temp Protection, Fits into Tight Spaces, Ideal for RV, Solar & Marine Use (1)

https://www.amazon.com/LiFePO4-Battery-2-36-Ultra-Thin-Low-Temp-Protection/dp/B0F7JR116V?crid=3DIL31OM1SY5U&dib=eyJ2IjoiMSJ9.wyXdLXLlVQUH8XY8-yoA3CUn9SFPToQFp0UUTRgVs4ooQK1Pf4OktXxbgI7Jw6haC0DiszsfEYksT_66g5R8AhCn2eDRhTP0kPCaQBzkUkKGYVAlL429K0I4M9cTvboIKHSHibT84zN8I45v4ttFScqgSXq0S7gmEIVgwYFYpjUvwUWdtgizBHeDlIqo7aJYperpFreARL6vNUukAFiGdRW1Qz5tfQ5wZDRBkWqbUQ4.A8_okxAY6l7_tP16O7DQfYPf4fMJxidb-Jh7zHiHPKc&dib_tag=se&keywords=litime+12v+100ah+slim&qid=1754659852&sprefix=litime+slim%2Caps%2C147&sr=8-1&th=1

 

Do you just not want to run it to the car battery? Or are you installing a lot of powerful speakers?

 

I don't think his goal is stereo here, as he wants a 1KW inverter and I would imagine other 12v loads as well

 

He mentioned two powered subs, so I assumed he was talking about an audio system.

 

Turns out only one 300w, Alpine SS-SB10 will fit, maybe the 12; 600w.
Removing the factory JBL, I know I have to put something in.
Its looking like these EVE LF105 cell's are what all of these slim ones are using.
A DIY could look something like this, this is all to scale.

And in doing this, I see you could stack the two 4S instead of being split, and battery falls to 11x16.5x3.
Lots of options open in that footprint.. need more time to plan.

I'm going to leave the propane behind and want to be out for an extended time, solar isn't always your friend so a higher minimum capacity is needed.
Really, one of the ARB's would be enough for now and is something I could get in before the trip, that is if you could in the US.

The end of triple digit numbers is near and I'm ready to go out. Headed to Yosemite next month and I know I wont be able to DIY a solution before then.
The rack and tent are now on, rearview camera relocating today. Thanks for your time/help.

 

Compared to the ARB, my hesitation with the LiTime and Renogy is...
They are so simple for their 4x/8x cost. While still needing so many other components.
The safety aspect of it doesn't outweigh the fun I'll have designing and doing it.
The formfactor; cardboard CAD to CAD to local laser is easy to get done here and I have CNC experience.

In the end I guess its really about the time, the LiTime is a great option for sure.