[Richard]

   

So, looking at the first pic, what would you do? 
Ignore? 
Wrap with Electrical Tape? 
Cover with shrink tubing? 
Replace the entire cable? 

   

Just kidding. The second pic shows how bad it is inside the cable. In my era coach there is a plexiglas cover over the chassis batteries. The sharp edge of the cover caused the nick. I have no idea if the nick was a month old, a year old, or ten years old. It sure did a corrosive number on the cable. 

I was lucky in that I had a few cables left over from the conversion from AGM to LiPo. One of them was the right gauge and the right length. 

To replace the cable, the stainless cover that the cabling disappears into must be removed. There are way too many zip ties inside that cover to simply pull it through. Obviously one end terminates at the battery. The other end terminates at a power post inside the rear electrical cabinet. Do tie a rope to the old cable when removing to aid in pulling the new cable back through the passage. 

And yeah the plexi cover is getting some modification along with some added protection on the cables.