RT 12v Pos Terminal near Battery

[cjackg]

This is a picture of the (reachable) positive terminal next to the battery on my RT. I have seen mention several times to connect accessories to the actual battery terminal, instead of to this terminal, but with no clear reason why.
Can anyone explain just what this little module does, and why not to use it for 12v positive connections ?

 

[boborgera]

This is a picture of the (reachable) positive terminal next to the battery on my RT.

That's the starter relay. I wouldn't hook up to that' go right to the battery and fuse the positive side of your connection.

 

[NancysToy]

The biggest reason to go back to the battery is actually the negative jumper post. It has a standard nut on the back, which is in an unreachable position. If you loosen the bolt, the nut loosens, then just spins. You will have to pull off the body panels, bend or make a special wrench, and hold your mouth just right to remedy the problem. It is easier to just go to the battery. In addition, it is virtually impossible to get the boot back over the positive terminal on the starter relay if you add a wire, unless you pass the wire through the boot before you attach the terminal. Big pain!!! The battery is much easier on an RS, and a safer bet on the RT.