refer cycle times

allyncooper

Observer
Bought a Dometic 1.3 cf refer that fits like a glove in the back of my Ranger. Running it off of the cheapo starter battery now and it's actually doing pretty well, but I'm in Denver and daily average ambient temp is pretty low right now. I want to install a dedicated aux. deep cycle battery for the refer. I know there are a lot of variables involved, but thru others experiences, what can I expect cycle time for the refer? I intend to use as a refer only set between 35F and 37F. Let's say day/night average ambient temp of 60 65 degrees ( when in the mountains I camp high so rarely above 75 day, into the 40's at night ) With a preliminary calc. of 50% refer cycle on with maximum 50% discharge on battery a 125AH battery would give me 22hrs run time.

Real time input from others who have refers and what I might expect would be appreciated. TIA
 

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