First and probably not last mistake

Curlida wrote:
My wife and I did it,bought our first Fifth. 2016 Montana 3711FL and also made our first mistake. Got it home,no problem and being a previous boat owner thought if I use the battery Disconnect and shut off the breakers batterie will be fine, but next morning went out to turn some lights on and take some pics to send to family and no power. Called dealer(camping world) and they were no help so I called Keystone and they told me fridge drained battery and that it can't be shut off. Now I'm wondering do I pull battery, charge it and wait to get 50amp service installed or maybe go to solar? We thought we did our homework but I guess not enough, first lesson learned! Sorry to sound so dumb and really appreciate the advice we have gotten from you all in previous posts.

2015 Chevy Silverado 3500 ( so impressed with how well this truck pulled Montana home two hours away)

I have never drained my battery down, especially overnight, and I also do not turn off the master disconnect. My trailer usually sits 2 weeks before I plug it into shore power. I do have the refrigerator shut off at the switch located on the refrigerator itself that has the off-auto modes. I would suspect a device somewhere is draining battery or battery is bad.