Alternator Troubles! 1973 Plymouth duster 318
Here's what happens when 40 amps goes through the circuit.
Actually held up pretty well considering how long they were subject to that load.
On the left is a bulkhead terminal for the alternator output on a different car, mine in this case.
It saw 15 to 30 amps over the course of 20 minutes or so because I had to drive back to camp charging the battery using the alternator. :( Sometimes you have no choice.
https://www.forabodiesonly.com/mopar/threads/charging-battery-with-alternator-warning.424783/