What is this second positive cable called? And another question...

[Fosty]

What is the name of this cable?

Also what options do I have for connecting it to a 3/8 terminal?
I bought some new terminals but didn't think about this.

[VStar650CL]

The biggest cable from the battery will always be direct to the starter. The alternator may connect directly to the battery too, and I think that's the case on yours. The smaller heavy-gauge wire probably goes there. One of the two smallest gauge wires looks to be headed to the main Fuse & Relay Box, which is a bridge to all the subcircuits that need battery power, usually through a bunch of fusible links. The other may be headed indoors to the fusebox. Someone looks to have already replaced that lug with a parts store universal, so replacing it with another one shouldn't hurt anything. If you want to neaten it up a bit, you can also get 4-spot lugs like these off eBay or Amazon, although that will mean crimping a new ring lug on the end of the starter cable. That isn't as hard as it looks, most parts stores have 2AWG ring terminals. Set the whole thing on some sort of anvil and make two sharp crimps across the sleeve with a hammer and a dull chisel, then seal it up with 3/4" heat shrink or RTV:

Battery 4-Spot.jpg (21.09 KiB) Viewed 624 times

[Fosty]

The biggest cable from the battery will always be direct to the starter. The alternator may connect directly to the battery too, and I think that's the case on yours. The smaller heavy-gauge wire probably goes there. One of the two smallest gauge wires looks to be headed to the main Fuse & Relay Box, which is a bridge to all the subcircuits that need battery power, usually through a bunch of fusible links. The other may be headed indoors to the fusebox. Someone looks to have already replaced that lug with a parts store universal, so replacing it with another one shouldn't hurt anything. If you want to neaten it up a bit, you can also get 4-spot lugs like these off eBay or Amazon, although that will mean crimping a new ring lug on the end of the starter cable. That isn't as hard as it looks, most parts stores have 2AWG ring terminals. Set the whole thing on some sort of anvil and make two sharp crimps across the sleeve with a hammer and a dull chisel, then seal it up with 3/4" heat shrink or RTV:


Battery 4-Spot.jpg

Thanks for the reply.

I did already buy some of url=https://www.amazon.com/gp/product/B01LL ... UTF8&psc=1]these terminals[/url]. I was going to get a new ring lug for the starter cable to fit the the larger bolt on them, but I was mainly wondering about that plastic red box thing that connects to the fuse box.

The two wires in the back connect into it like plugs, and upon further inspection the little lug bit seems to be part of the red thing. I figured I could buy another one with a larger hole, but I don't know what it's called.

Sorry, I should have checked it out a bit more and circled it a bit more accurately.

[VStar650CL]

I'm not all that familiar with old QX4's, but chances are that red thing will either be a simple wire splitter or a fusible-link block. If it's fusible links, you should see some things inside that look like oversized fuse elements. Maybe somebody here with more QX4 knowledge than me can help you out with specifics.

[mdmellott]

It looks the same as mine on my '02 Pathfinder but your battery terminal connector was replaced some time ago. It's been awhile since I had opened up the heart of that fuse/relay junction box but if I'm not mistaken the two smaller leads to that red connector go to the fusible links in the junction box. One dedicate to the 120A fusible link for the alternator and the other supplies power to everything else in the junction box. When your battery terminal connector was replaced, the red connector was removed, flipped 90deg and fastened to that screw you have circled. A new cable was installed to your starter. The original starter cable battery connection was part of the original battery terminal connector. The original cover is missing but still available from dealerships. https://www.nissanpartsdeal.com/parts/n ... 40u05.html It just snaps into the red connector hinge position. However, that would only work right as a cover when you flipped it back 90deg. The ring lug on that red connector is too small to fit onto the 3/8" bolt connection on the battery terminal connector you bought but it might fit onto the smaller clamping bolt, like it was done on the original battery terminal connector. Cutting those leads, installing ring lugs, and discarding the red connector would be another option.

[Fosty]

So I ended up rigging something together. It could use some more heat shrink tubing, but I'll wait until I get a proper heat gun instead of borrowing the one at work again. I'll post some photos later when my phone has a charge.