Blue Sea 7622 dual batteries.

[RWB_Runner]

Guys, and gals, I want to start off by apologizing if this has been covered, I have searched and searched, and have seen many great write ups on here and expedition portal.
I hope this post will help others out, as This might be a over looked problem.
I am about to purchase the blue sea 7622, I will be running this in my 2016 4R.
I already have the shrockworks dual battery tray.
Along with purchase I will be getting inline 300 amp fuses x2 and will be using 1/0 guage cable.
The purpose of this will be to run fridge, and eventually winch.
I will be purchasing diehard gold 34 tomorrow.

Now my question:
The install seems straight forward, but I am lost to where the isolation #1 wire should be ran to?
Do I hook it to the positive post on the house battery, or have to run it straight to the starter?
Thank you for your help!

 

[riceandpho]

it says optional, so you really dont need too, if you want to, i think it goes to the starter wire.

 

[RWB_Runner]

I spoke with blue seas tech, the gentlemen said that the start isolation wire is only reccomended if you are running sensitive electronics, I.E computers that you don't want a power drop from your house battery.

I was concerned about electronics on my start battery, but it will not suffer any power loss.

So moving forward, you just connect both of your batteries together and your good to go, that simple.

Also the tech recommend you ground the ACR straight to negative battery post, so you don't get weird power readings.
Good luck!

 

[Colemanfu]

as simple as it gets

Here's a simple version of my aux battery set up.

And in real life.