I have a '09 Starcraft RT pop up camper that I leave in storage when I'm not using it. The last time I used it was mid June and had no problems. I went to check on it tonight and noticed an alarm going off inside the camper. Well it had just enough juice in the battery to get the roof to lift about 1/2" enough to get the door open and noticed it was the propane alarm which has never happened before when the battery was about to die or was dead. I plugged the 7 way in to the plug on my truck and all the running lights came on because my headlights were on...normal...brake lights worked, blinkers all worked. When it's plugged in it usually charges the battery but not this time...the alarm kept sounding until i disconnected all the cables then it would stop and when reconnected it would go off intermittenly. When i went to check the brakes on the trailer I noticed that the brake controller in my truck was no longer lit up at all...even when I pressed on the brake the controller still didn't light up and it's on all the time. I fooled around with the wires to see if something wasn't connected...there are 2 - 30 amp fuses on 2 of the 3 red wires that looked fine. Does anybody have an idea of what's going on? Did I blow up my brake controller? Is my electrical system shot? I don't know anything about electrical systems so any advice would be helpful.