By Cheri Sicard
12-volt RV refrigerators are showing up in more new RVs, and it’s easy to see why. Duane, a certified RV inspector from the RV Inspection And Care channel, noticed them everywhere in new travel trailers at this past Hershey RV show. At major shows and on dealer lots, 12-volt fridges are becoming the default choice.
With more brands switching over, RVers keep asking the same thing: Is this a smart upgrade, or just the latest trend?
A few common observations:
- Many new travel trailers now ship with 12-volt compressor fridges.
- Factory power setups often stay basic, even with the new fridge style.
- Buyers are left to match the fridge choice to how they camp.
How traditional RV gas absorption fridges work
The classic RV refrigerator runs on gas absorption principles. It needs a heat source and a chemical process that removes heat from inside the fridge. These units have no moving parts, and many can run on electric power or propane.
That propane option is a big reason they’ve stayed popular with boondockers. As long as propane is available, the fridge can keep running without shore power.
What makes a 12-volt RV refrigerator different
A 12-volt fridge is usually a compressor fridge, closer to what people use at home. It typically runs on electric power only. That design change drives most of the benefits and also the biggest downside.
The main benefits of a 12-volt fridge
• Better, steadier cooling: Gas absorption fridges can take a long time to cool down from startup, sometimes up to a day. They can also struggle in hot summer weather. Compressor fridges tend to cool faster and hold temperature better, so frozen food stays reliably frozen.
• No need for rear ventilation: Absorption fridges need good airflow behind them to move heat away. A 12-volt compressor fridge doesn’t rely on that same venting setup.
• More usable space inside: Absorption models often have fins along the back wall. With many 12-volt fridges, that space is freed up, leaving more room for food and drinks.
• Frost-free operation: Many 12-volt fridges are frost-free. That matters for part-time and full-time RVers who don’t want to stop and manually defrost after weeks of use.
• Improved safety: A 12-volt fridge has no propane flame. That removes one potential source of RV fires tied to refrigerator operation.
• No leveling worries: Absorption fridges can be damaged when run off level, and repeated off-level use can shorten their life. Compressor fridges don’t have the same sensitivity.
The big drawback: power use while boondocking
The tradeoff is electrical demand. When running, a 12-volt fridge can pull around 10 to 20 amps. That can drain a single flooded lead-acid battery fast. RVers won’t notice this much at RV parks, but it matters a lot off-grid.
Power options that can make a 12-volt fridge workable
Duane points to a few common fixes:
• More battery capacity, with lithium batteries often working best since most of the stored power is usable;
• More solar on the roof to keep batteries fed during the day; and
• An inverter generator, run a couple of hours in the morning and a couple of hours at night, to recharge batteries without a full power-system upgrade.
He also notes many factories still ship 12-volt fridge rigs with one flooded lead-acid battery and one solar panel, so frequent boondockers may need to expand the system.
Who should choose a 12-volt RV fridge?
A 12-volt fridge tends to fit RVers who stay in campgrounds and RV parks most of the time. For frequent boondockers, it can still work, but only if the battery and charging setup match the fridge’s demand. Some may prefer to stick with propane-based absorption to save money.
A 12-volt RV refrigerator can be a great upgrade when it matches how the RV is used. It cools well, avoids propane flames, and doesn’t care about leveling. The real catch is power, especially for off-grid camping. RVers get the best results when they choose the fridge that fits their camping style, not just what comes from the factory.
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RVDT2815
We love the 12v fridge that came with our 2023 Airstream. We occasionally boon dock for a week at a time but our tow vehicle is a Ford F-150 PowerBoost Hybrid with the 7.2KW onboard power. We can run our Airstream for days off-grid including one AC/heat pump.
After our “No Cold”, Norcold caught fire just after the warranty expired, we converted it to 12V through JC Refrigeration. Total game changer!
I have 460 AH of Lithium, so a day or two dry camping is fine. If I intend to do more, I would add solar to my RedArc DC/DC charging setup.
We bought a 5th wheel a year ago with a 12v fridge. We were really bummed we couldn’t boondock at first. We invested on 1200 watt solar panels and (2) 280 amp lithium batteries, now our fridge runs great while boondocking. The fridge itself is also very nice, much more space and stays nice and cold.
While RV manufacturers push 12V refrigerators, they never provide enough solar and lithium batteries. You may be ok if you hook up to electricity. What I’ve been told you need a minimum of 600 watts of solar and 300 amps of lithium. I installed 400 watts of solar and 200 amps of lithium batteries and it cost me about $1200. I don’t have a 12V fridge. The trouble with solar is you have to keep the panels clean and if you boondock in the winter you have to clean the snow and Ice off your solar panels. I like the idea of not having to worry about level of 12V fridges. But not sold on 12V fridges. There are articles on some of the negative things with 12V fridges.
Maybe a simple question. Our LTV has a 3 way frig. If we switch to 12v when we are way off level, does that hurt the frig? Right now I turn the thing off and then forget to turn it back on in a timely manner!
watch rigor rv repair on youtube. He says they are not very reliable and has to replace them a lot. Plus they do drain batteries quickly.