We are about to winterize our 2013 Mesa for the first time. Since we've rv'd previously we are clear on what needs to be done with the entire unit with the exception of our Lippert Level Up system. Since the unit will spend the winter in temperatures that get as low as -20 F we will be taking off the batteries (and disconnecting shore power). We want to leave the system with the jacks down.....are there any issues or is there anything we need to do? I've tried contacting Lippert and so far they have not answered my query and we need to get on with winterizing very soon. Thanks in advance!