In Reply to: Hot battery cable ends posted by Tom on May 16, 2020 at 19:27:11:
"The negative cable that goes from the battery to the switch and ultimately to the starter gets hot as soon as the battery is connected (to the point that the plastic started smoking!!!)."
On that switch there is a fiber washer that goes first thing against the case of the switch. If that fiber washer is missing then that cable is grounded through the switch case.
I have one here on my desk "new old stock" that is missing one of the fiber washers.