The battery disconnect does not disconnect everything on the camper. That's why several of us have put a disconnect switch on the wire coming from the negative side of the battery. Depending on how the Amish Craftsman decided to wire your unit, things like CO2 detector, radio, level up, and perhaps others still have parasitic draws. These draws will kill a battery easily in 9 days. If you're not going to use it and you're not going to plug it in, remove the negative wire from your battery (s).
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