I agree with bikendan...in my 2012 233s ROO the disconnect switch (located next to electrical panel below fridge - is a push/pull silver colored switch) will kill ALL 12V DC power to my rig.
Im probably over-killing it...but when I store, I get everything in place (elect tongue jack) and secure and right before I leave I use the disc sw to kill all 12 V power, then I remove my battery and bring it home. When I go to pick up the rig, I install the battery, restore 12V power with the disc sw and then go about my business....have yet to have any power problems doing this.
I also recall reading low power trips of the CO detector.
Ed & Chris
Josh & Jaclyn
2012 Suburban LTZ
2013 Rockwood Roo 233S