I will assume you have an Intelletec Battery Control center under the "Hood" on this unit. Now.. there are two ways it's wired.
Mine has an 80 amp self resetting circuit breaker right next to it.. But the official wiring diagram for this unit shows a pair of 30 amp PUSH (Very hard) To reset (Post type) Circuit breakers in the bottom of the box. Under the conditions these are my prime suspects.
It is also possible that someone or someone hit the USE/STORE switch just inside the door (Salesman switch)
On the 9100.. On my INtruder they used a plug in model (Comes with cord and 20 amp plug) and yesterday.. I unplugged it (By accident) Not the first time, Indicators caught the problem before it was a problem and I restored the plug.