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I removed the 2 bad mosfets, and added the last mosfet for testing. I also added a 15kOhm resistor from gate to source. I also added a line to the software that initializes to 0v the PWM output pin on the micro-controller.
I now believe that you can turn the controller on in any order that you want. Either pre-charge resistor and contactor first, or 12v power supply first, and then pre-charge resistor and contactor.
One of the reason the controller was acting so weird before switching out the mosfets is because the battery was completely dead that was powering the controller! Totally dead! Under load, it was sagging to about 4 volts. yikes.
I like the idea of the voltage range of 12v-156v because it lets me test it at 72v, which is all I have.
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