Battery becoming very hot

Voltage did not change with RPM.
900 idle speed. Will post photos tomorrow.

I did notice as I was checking all the switches that when I accidentally pressed the wiper switch car wanted to turn off. Like a starter kill. Thanks
So far, from what you've posted, the charging is normal for a low battery. I like to see 12.5 to 12.8 V when the engine is off.

A hidden kill switch, eh. Maybe you have some James Bond stuff in there. LOL.
Yea something is up with that