Dometic Americana refrigerator

DrewE wrote:
Why not consult the catalog that Dometic provides?

It looks like that catalog is directed at the Australian market and doesn't include the new Americana DMC models which are intended as an alternative to the current 6 and 8 cu. ft. absorption models currently in many of today's RVs.

Other posters seem correct that there is little info available at this time. Even Camping World, who advertised it in the Sept 2016 Trailer Life magazine, has no info (that I could find at this time) on their own website.

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.

Bob Vaughn wrote:
how long it would run on 12volt before running a battery down.

A single battery? Maybe 2-3 hours, depending on ambient.

I'm getting a slow trickle of info- I would suspect it will be pretty efficient, it reportedly uses a variable speed DC compressor, though no power specs.
http://www.dometic.com/USA/New-Products/New-RV-Products/americana-dmc/

Usually the 12v setting is for Coaches, as trailers can't get enough amps to run a fridge through the umbilical. I assume running even a 12v compressor fridge wouldn't last too long on batteries without a really solid solar system.