Battery Terminal Addition Question

I am putting a dual battery system in my 2020 4R, which I will post the full install with pics once completed. I need some advice with regard to adding a 4AWG wire to the positive post. As you will see in the photo below, Toyota has placed a special connecter on the positive post that handles 2 different positive leads. The one on the left is fused at 250a and the one one the right is fused at 70a.

There is only about a 1/4 inch of upward slack in the fused terminal block. The plastic fused components extend lower than the terminal connection. I could hook on to the terminal bolt stud, but the plastic cover won't close and I would have to bend the cable up over the post. I could all hook onto the post bolt, but I prefer not do that, if it can be avoided, since it would mean modifying the black plastic cover.

Can you guys recommend how to add a secondary to lead to this configuration in a manner I have not considered, or that you have done yourself. Thanks in advance for all the help.

 

This is how I did it.

 

No cutting, there is enough wiggle room to install the wires and push the cover back down.

 

Hell ya..... all the reserve. (used 1/0 here) Best of luck mate.




Then i put a gm diode fuse in the alternator "sense" wire fuse location, that net me more charge voltage. Dig it..... cheers my man, get to work !!.

 

This might/maybe be a possible work...or for others looking to wire into posts. Just an idea.

https://sdhqoffroad.com/products/sdhq-built-billet-battery-terminal-upgrade-kit

 

I have the 2nd battery connected to the top post and the winch cable and fuse holder for the auxillary fuse panel cable on the terminal bolt. The bolt coule be a little longer and I had to cut the cover to close it.

 

Thanks to all for the suggestions. I have ordered some L bracket extensions that I think will do the trick. Once I get the whole thing installed I will post a thread for how I did it.

 

Dremel I believe is what I did. The large sanding drum and two seconds later at high speed

 

Pay no attention to the crooked fuse cover I was still working.

 

That's what I used to clean up the wiring mess.