Dual battery kit

Tejas

New member
I am looking to add one to our 5th Gen to handle the load of a Fridge and other items in the future. I was leaning towards the kit from SDHQ, do you guys have any other or better recommendations on dual battery kits?
 
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I am not a fan of the kits that relocate the secondary battery to that location.

Although more convenient because it is easier to wire, I think a setup that relocates the secondary air pump to that location is worth it because it makes up some space for an ARB CKMA12 in that location.

I personally completed my dual battery setup with the help of shrockworks components and I am really glad I did.

Here's a link to my thread with some pictures:
https://www.toyota-4runner.org/5th-gen-t4rs/264562-project-dual-battery-setup.html
 
You don't need a dual battery for a fridge. A deep cycle battery will suffice. I struggled with this for a while and didn't do dual.
 
I’ve been using the Westin T-Max dual battery system for probably more than 8 years without issue. Not as fancy as others out there, but has same general functions at much lower price.
 
You don't need a dual battery for a fridge. A deep cycle battery will suffice. I struggled with this for a while and didn't do dual.



What do you use to fully charger your battery? Do you have an onboard charger installed or do you plan on installing one?


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I know off grid engineering seems expensive. Give them a call. Within 5 minutes you will have a whole new understanding on dual battery systems. They know their shit.
 
Im running the dual battery relocation kit from Shrockworks with a National Luna Dual battery charger. So far so good and no issues. Took me about a whole day to install. Like any kit out there that you get, take your time with the instructions. You can either do it perfectly or mess something up. When you are linking two batteries together, if one thing isn't done right, you may never notice and could risk an electrical fire. Like KWSRstorm, I am also running the stock battery for the starter with a yellow top Optima. I prefer to run all my accessories off the aux battery so I never have to worry about killing the starter battery. And if I kill the starter battery, I like that I have the option to jump myself with the aux battery. No need for me to flag someone down to get a jump.
 
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I have the OGE kit and its expensive for the price. However I am an electrical dummy and wanted something pre-wired and ready to go. Also when I looked up the price of buying my own kit at the time it would have been within a $100-$200 dollars of a pre-made kit. You have to consider the cost of a nice hydraulic crimper and high quality cables along with time as well. Now that I have a little more electrical experience and understanding I probably would have tackled the job myself. More for the accomplishment of it.

You can buy the mounts themselves and wire it yourself and save a few hundred dollars. OGE, SDHQ, C4 Fab, Shrockworks, Genesis Off-Road all sell kits and mounts separately. Blue Sea, National Luna, IBS, Red Arc, C-tek, Perfect Switch Powergate are just a few companies that make isolators.
 

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