Frig on propane with battery for controls

[tooth ferry]

2014 Mon. High Country with Dometic ( SM 1350 I think) 4 door frig.
Should a fully charged 27 battery run frig plus parasitic loads for 48 hours. Frig cold for 48 hours before not having gen or shore power and running on propane. Would it be okay to leave frig on with slide retracted or should slide be out to lessen heat build up?

[Lenny K]

If your battery is in good shape, as in holding its charge, you won't have any problems running your fridge on propane for 48 hours. You can leave the slide in as your fridge vents on the side of the slide so nothing is gained leaving the slide out.