Dometic CFX3 75DZ vs CFX3 95DZ on a power station

Energy use is close. The 12V port is where these two split. The Dometic CFX3 95DZ is rated at a DC input current that’s above the car port limit of every power station in our data, so our check says it won’t run from the 12V port on any of them. The Dometic CFX3 75DZ fits under that limit, just barely. If you want to run your fridge off a power station’s car port, that alone may settle it.

We picked these two because they’re the most even match among the CFX3 models in our data. Both are dual-zone, and Dometic publishes the same two figures for each: both zones as fridges, and one zone as a freezer. That means every row in the tables below lines up. The 55IM would have been the other option, but Dometic’s figures for it are with and without the ice maker, not the two zone settings, so the rows wouldn’t line up.

The 12V port problem

Every station we have data for has the same car port limit. The EcoFlow DELTA Pro, which is the biggest one, has 10 A on its car port, the same as the EcoFlow DELTA 2.

Our check compares Dometic’s rated DC input against that limit. The rated input is the most the fridge should draw while the compressor runs, not what it draws on average, and a lot of the time it’ll be cycling off. But a port that’s asked for more than it’s rated for can cut out, and the moment it’s most likely to is when the compressor is working hardest: hot day, warm food just loaded. That’s also when you least want the fridge to stop.

Here’s the check for the 75DZ on one station. The 95DZ’s numbers show up as “Won’t run” in the 12V rows further down.

So the 95DZ goes on the AC outlets. That still works. You lose some battery to the inverter, and that’s the AC vs. 12V DC gap you’ll see in the 75DZ rows.

Runtime side by side

Two modes for each fridge, three stations. Both modes are Dometic’s rated figures on a hot day (the Mode column has the conditions).

Turning one zone into a freezer costs more than the jump from the 75 to the 95. On the EcoFlow DELTA 2, the 75DZ with both zones as fridge runs 53.5 hours on 12V. Set the small zone to freeze and that drops to 25.0 hours. If you’re sizing a battery for one of these, decide first whether you’ll actually use the freezer, because it cuts your runtime by more than half.

And with the freezer on, the two fridges end up closer than you’d expect. The 95DZ on AC gets 77.5 hours on the EcoFlow DELTA Pro, against 89.0 hours for the 75DZ on the 12V port.

One note on the Bluetti Elite 200 V2: its manual gives no surge rating, but that changes nothing here. We don’t have a startup figure from Dometic for either fridge, so there’s no startup draw to check against any station. That’s why every row says the surge is unverified.

Which one fits a power station better?

If you’re powering the fridge only from a portable power station and want to use the car port, the 75DZ is the one that works on paper. If you’re fine running from AC, or the fridge will mostly run off your vehicle’s own 12V wiring, the station’s port limit stops mattering (your vehicle’s wiring has to handle it instead), and it comes down to space. We don’t carry interior volume, weight or dimensions in our data, so check those on Dometic’s pages.

The rest of the range, with runtime on every station we cover, is in the 12V fridge runtime table.