Dometic Americana refrigerator
I saw an ad for a Dometic compressor type rv refrigerator. It says 120volt 12volt dual voltage. I am left to wonder how long it would run on 12volt before running a battery down. An is this for peo...
Forum Discussion
Why not consult the catalog that Dometic provides?
For the smaller units, they publish power consumption. The largest of them, the 136 liter version (about 4.8 cubic feet), lists "average power consumption" of approximately 65 watts (which would mean about 5.5 amps at 12V DC), and power consumption of 2.3 Ah/h or 2.6 Ah/h depending on the ambient temperature. Unfortunately they don't say if the 2.3 or 2.6 Ah are at 12V or 24V, but 24V would be more in keeping with the average power consumption figure.
At any rate, it appears to me that you could plan on about 8 hours of operation per battery as a rough rule of thumb for that unit without being too nasty to the battery.
For the smaller units, they publish power consumption. The largest of them, the 136 liter version (about 4.8 cubic feet), lists "average power consumption" of approximately 65 watts (which would mean about 5.5 amps at 12V DC), and power consumption of 2.3 Ah/h or 2.6 Ah/h depending on the ambient temperature. Unfortunately they don't say if the 2.3 or 2.6 Ah are at 12V or 24V, but 24V would be more in keeping with the average power consumption figure.
At any rate, it appears to me that you could plan on about 8 hours of operation per battery as a rough rule of thumb for that unit without being too nasty to the battery.
