OFF-GRID ENGINEERING Dual Battery Systems (An Introduction)

Hi all!

I've posted elsewhere but just noticed this Power System sub-forum and figured it would be appropriate to post here as well.

My name is Matt and I've been around here for a while under the name Tacomedic. I've been building expedition style vehicles for the past 15 years and have always designed my own battery systems. Well, now I'd like to do it for everyone else too.


OFF-GRID ENGINEERING, LLC is a Colorado based company with a focus on building the most robust battery kits available, while maintaining the cleanest looking installations.

Currently, my focus is on building model-specific, battery trays for Toyota Trucks to compliment my fully custom wiring kits. However, I can build a wiring kit for ANY vehicle or trailer. You tell me where your batteries are and I do the rest.

My wiring kits feature:

-Blue Sea ML-ACR relays with custom harnesses and in-cab switches
-Custom made cables with your choice of 4, 2, or 1/0 AWG high strand count, american made welding cable. All cables are pre-terminated with hydraulically crimped aviation grade lugs, covered in Techflex cable wrap, and 3M marine grade, adhesive lined heat shrink.
-Mil-Spec terminals
-Circuit Protection with inline ANL fuses
-Fully labeled for easy installation

Even if you like to do all the work yourself, I can help you out. I source all the hard to find parts to build battery systems.

Here's a few of my products:

2nd and 3rd Gen Tacoma Full Battery System (Shown with optional accessories)

IMG_1887_zpskqpa2m8v.jpg


b7f576e5-d7c3-42ff-b069-b4a5a947cbed_zpszlqebawp.jpg


Stand alone battery trays

FinalTacoTray1_zpsuagbxmye.jpg


IMG_1797_zpsnomskv1b.jpg


IMG_2009_zpspsabrbfj.jpg


2b32a2f2-0da1-4d84-bc1e-391cc16d873a_zps7rsi2nnn.jpg


Dual Battery trays and Systems

IMG_2008_zpsv1h6wr7q.jpg

IMG_2005_zps1iq4m19s.jpg
 

Ducky's Dad

Explorer
Do you have an off-the-shelf dual battery kit for an '08 Tundra CrewMax? I'm currently running a new Northstar 31M AGM in the stock position and have not found a good spot to mount a second battery, probably a Grp 34. Not willing to give up any cab or bed space.
 
Do you have an off-the-shelf dual battery kit for an '08 Tundra CrewMax? I'm currently running a new Northstar 31M AGM in the stock position and have not found a good spot to mount a second battery, probably a Grp 34. Not willing to give up any cab or bed space.

I do not have a battery mounting solution as of yet but I do have a wiring kit available. I hope to get to the Tundra this summer.
 

texascrane

Adventurer
Anything for a 100 series Land cruiser? I'm ready to pull the trigger on something but nobody is doing anything that's quite what I want.
 

ericwalkertn

New member
Looking for Dual Battery tray set up for a Tundra 2015 Crew Max. Also have you checked out the CTEK D250S and Smart Pass in lieu of the Blue Sea systems and solar controller?
 

Ducky's Dad

Explorer
As popular as the big Tundras are, why has no one developed and marketed a dual battery mounting tray? Seems like a no-brainer for someone.
 
As popular as the big Tundras are, why has no one developed and marketed a dual battery mounting tray? Seems like a no-brainer for someone.


I agree! And maybe I'll get there some day. But honestly, this venture has been a victim of it's own success. The Tacoma kits are so popular, I can't keep up. I haven't had a free minute to design anything further. Its a good problem to have I guess.

With that being said, I am currently scaling back production to focus on other things for the summer. I may start up again in the winter.
 
Looks like high quality products .....

Any product plans for a 2001 Jeep TJ?

Best regards,

Mike

Hey Mike! Thanks for the compliments. I have worked hard to make sure these kits aren't just another pile of cheap parts stuffed in a box. Unfortunately, I have no current plans to work with Jeeps. The only reason being, you guys have SO many options already! Its a difficult market.
 

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