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While climate is important to the use of the refrigerator, we use our refer a bit differently.  We do the traditional overnight charging (getting it cold) the refer.  After it is cold enough, we load it while the items are still cold from being stored in the house refer.  This initial charge is from a 110 outlet.  While we are on the road, the refer is not turned on.  We found that we can go all day without it being on.  Ice cubes in the freezer compartment are still frozen.  Ice cream might get a bit soft but not at all runny.  In fact it is just right for eating.  When we set up for the evening the refer is turned on and cooled by campground 110 volts.  We have traveled through many states and found that our refer keeps everything in the condition that they are best preserved.  When dry camping, propane works much better than 12 volt.  So we really have no problems.

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