TESTED: Dometic CFX3 45

At the 2019 SEMA show, Dometic released their CFX3 line of electric coolers, which are the latest generation of the CFX series that I’ve reviewed in the past HERE.  Everything from the compressor to the control app was updated for this complete product line refresh, and after spending some time checking out the new coolers at the show, I left Dometic’s booth eager to put one to the test in the real world.  We all know that seeing something at an industry show is one thing, and spending months with that same product while traveling thousands of miles off-road in the real world is another – so rather than create just one more short term review of a product, I figured I would push this one out to over a year of use – to see just what living with the CFX3 is like well after the honeymoon phase of ownership.

At first glance, a CFX3 electric cooler may look similar to the old CFX series, but look closer and you’ll begin to see just how much has changed.  Construction wise, everything from the handles to the compressor unit to the controls have been revised.  The handles are now all aluminum, so there’s no need to worry about cracking a handle if something smashes into the cooler or if your buddy goes full hulk mode using a ratchet strap around a handle to secure the cooler in your vehicle.  We can’t see the compressor unit, but know that it’s an entirely new unit that is more efficient, consumes less power, and creates less noise than it’s predecessor.  This means that the CFX3 coolers are easier on your battery system when you’re parked, and they’re even easier to sleep near.  Dometic has also moved the compressor to the opposite end of the cooler from the lid opening, so now when you open the lid the deep end is closest to you.

On the control side of things, the CFX3 series steps into the modern age with a high resolution display that is a welcome change over the old LCD display on the older coolers.  No longer will you have to reference your manual to remember how to make a settings change, or figure out what the display is trying to tell you.  With the CFX3 display you can clearly read, adjust, and understand all of the settings with just a few button presses.  The whole process is very intuitive, and folks who have never seen the manual can make any adjustment needed without issue.  When the display isn’t in use, a little snowflake icon on the display lets you know the unit is powered up, so parasitic draw is less than the bright LEDs used by other brands of coolers.  Next to the display, you’ll also find a USB port that’s been upgraded to provide 2 Amps of power at 5V, which is a welcome upgrade over the 500 milli-amp outlet on the old CFX units.  This increase in current means that the CFX3 can actually charge modern power-hungry devices, and the port is in a great location to power a speaker or other device while you’re in camp.

Speaking of devices, Dometic has also improved the companion app for the CFX3 series. The app uses a Bluetooth connection that sips power, and now you can plot your cooler’s energy consumption in addition to fully controlling the cooler from your phone.  In use, I’ve noticed absolutely no hiccups using the app on Android devices, and being able to know how much power your cooler is currently consuming and how much power it has been consuming is powerful information when it coming to determining just how long you can go before needing to charge your battery system.  The CFX3 series coolers do come with a configurable low voltage cutoff, so you can protect your battery system from over discharging.  As they say knowledge is power, and it’s super easy to pop open the app and see where your battery system is at, rather than having to guess at your state of charge. 

Inside the CFX3 45, things will start to look like familiar Dometic territory, and it’s here where you’ll find the versatile system of baskets and dividers that allow you to organize your cooler loadout.  There is a basket for the shallow section of the cooler, and a basket for the deep section that be divided in half vertically with a removable insert.  Volume wise, the CFX3 45 measures in at 46 liters of storage, and this works out to a deep basket that can hold 16 sleeved standard size soda cans per layer with ease.  Drive off-road long enough and the simple action of cans rubbing against each other as you bounce down a trail can wear a hole in an aluminum can.  Pro tip: This is why you can never have too many foam beer koozies.  Should a can have a hole worn in it, or something else in your cooler decide to leak, there’s still a drain plug that’s easy to use at the bottom of the cooler.

Getting in and out of the CFX3 45 is where I noticed about the only issue that I’ve been able to find in my extended time with the cooler.  That issue is that the lid doesn’t always latch unless you give it a firm press to close it.  I would like the lid to work like a car door, in the respect that it’s easy to close and that it seals well, yet with the CFX3 lid, even dropping it closed isn’t enough to do the trick.  The best practice is to gently close the lid and then give it a press to engage the latch.  This is by no means a deal breaker, but I’ve seen other CFX3 coolers suffer the same ailment, and there may have been one case where a cooler in the back of a truck was closed but not latched, and spirited driving resulted in lunch being put out early – but the point is, just check that the lid is latched and you’re good to go.  Other than the lid, every CFX3 cooler I’ve encountered in the wild has worked flawlessly.

The 100 year old hotel and the 100 day old CFX3 45.

If you’re reading this and thinking to yourself that yeah, an electric cooler would be rad, but that’s a lot of money to spend on a camping gadget – remember this:  Dometic also provides an AC power adapter so that you can run your cooler when you’re at home or anywhere else you have access to AC power.  This means that your electric cooler can pull double duty and be of value at home and on the road.  Need a drink cooler in the shop?  Need a place to store additional food so that you don’t have to go to the grocery store as often?  Staying in a hotel for long term work? Don’t think of an electric cooler as a camping only tool – they are devices which can provide value every day of the year, or whenever you need them. 

In a nod to Dometic’s longevity, one of our American Adventurist staff has been running the same Dometic electric cooler for more than seven years now, and thanks to the solar panel on his roof, it’s been on 24/7.

The CFX3 45 Cooler that I’ve been testing for the last year hasn’t been phased by anything that I’ve thrown at it.  To give you a quick idea of what It’s been through, the cooler has:  Frozen in the winter in Idaho, baked in a hot car in the middle of summer in Phoenix, and logged nearly 35,000 miles of travel.  Several thousand of these miles were off-road, doing everything from Go-Fast Dirt to rock-donkey rock crawling.  The cooler may or may not have logged a little bit of flight time, and it’s spent plenty of time packed next to everything from other pelican boxes to recovery gear while bouncing around all over the Western US.  It may have a few scuffs and scrapes and dust that will never come out, but the unit works just as well as it did on day one.

The Dometic CFX3 45 has been an awesome electric cooler.  I have to give Dometic props for looking at their old CFX series of coolers (which are solid units) and figuring out how to make them better.  With the CFX3, the compressor is more efficient and quiet.  The user interface is so much easier to use.  And other little details like the revised USB port all add up to make a cooler that has been a joy to use.  The bottom line is this:  If you want an electric cooler that you just plug in and know that it’s going to work, you can’t go wrong with a CFX3.  No matter where your adventure is going to take you, know that the CFX3 will stand up to what you throw at it, and keep everything you throw in it cool.  When the road finally sees you back home, know that an electric cooler can be utilized around the house – so don’t think that an electric cooler is a travel-only toy.  Electric coolers have never been easier to use, or more useful – so if you’ve been on the fence about ditching ice, know that with a CFX3 cooler you’ll never look back.

Full Disclosure: Dometic provided a sample CFX3 45 electric cooler free of charge to the author for the purposes of this review.

Battle of the Boxes: AluBox vs Zarges

The average Overland style trip requires considerable planning and organization due to the tyrannies of time and distance involved. Too much or too little gear and provisions can negatively impact the success of any trip, and your load plan will be tested by rough terrain, inclement weather, and critters. And with our limited time off from work being so valuable, what’s the absolute best way to stay organized, avoid loss, and prevent the trip of a lifetime from being derailed?

We believe that hard cases provide a superior level of organization and accountability. Weather resistant and capable of being stacked and tied down, they ensure peace of mind when exposure to the elements is a risk factor and are a top choice for storage of gear and provisions inside or outside of any vehicle. Useful for long term storage with easy portability to and from camp or job site makes all-metal cases like the AluBox line an easy choice .

Recently we had the chance to put our trail tested and trusted Danish made AluBoxes up against their German rivals from Zarges.

Our subjects for this review are the AluBox 42 L and 60 L, and the Zarges K-470 series 40568 and 40678 boxes. These cases are nearly identical, yet inherently unique. Here’s what we learned researching them online and using them in the field when comparing both brands side by side in our “Battle of the Boxes”.

Yes, there’s a story somewhere about something between the Danish box and the German box companies but we won’t bore anyone with rumors or hearsay about industry politics. They’re both incredible products with some subtle features that differentiate them, so read on to learn more.

In this corner…

AluBox is a small, family-owned company based in Denmark and marketed in the U.S. by Equipt Expedition Outfitters. AluBox specializes in aluminum boxes, cases, and containers, and offers a wide-range of standard box sizes to customers around the world for use in defense, industrial, emergency services, transportation, and recreational use. AluBoxes are made of 1 mm thick 5754 (AlMg3) aluminum alloy. This aluminum is a mid-strength material, non-hardening alloy that offers excellent corrosion resistance against seawater and industrial polluted atmospheres. It is widely used in the food and chemical industries, vehicle construction, ship building, architecture, and interior design with 17 total sizes available that range from a modest 20 L to a massive 415 L option.

AluBox 42L kitchen

And in this corner…

Zarges was established by Walther Zarges in Stuttgart, Germany in 1933. Distributed in the United States by Charlotte, North Carolina based Zarges USA, their Tech Center offers in-stock cases, customization and rapid, custom cushion fabrication. The ZARGES K470 universal case is their classic design, constructed of 1.5 mm thick 5005 aluminum alloy which has a high corrosion resistance. These sturdy cases have been tested to withstand temperatures from -238 to 302 degrees Fahrenheit, with 25 sizes available and capacities ranging from small 13 L boxes to 829 L behemoths.

Zarges boasts three K470s that are listed as “bear resistant”; #40810, #40568, and #40678. The Interagency Grizzly Bear Committee (IGBC) certification means that certain National Parks, including Yellowstone National Park, will allow campers to bring their food supplies into the park when stored in approved K470 cases.

AN INTERESTING DISCOVERY:

The AluBox 60 L and the Zarges K-470 #40678 are both advertised as weighing in at 5kg/11 lbs on their websites. Despite the differences in advertised material wall thickness (1mm vs 1.5mm), in my opinion the heft and construction appears identical with each box weighing in at 11 lbs.

NOTE: Both AluBox and Zarges have received Interagency Grizzly Bear Committee (IGBC) certification, but tested or not we still wouldn’t leave any of these boxes all alone in bear country while we’re away from camp. We do recommend that you store your camp food in your (insert brand loyalty here) box and hang the entire box from a tree or a bear pole. Please remember to follow the proper guidelines at all campgrounds and campsites in bear country as they may differ from by region and state. Here’s more info about camping in bear country.

Zarges K-470 series 40568 outfitted as a camp kitchen

DETAILS AND DIFFERENCES:

AluBox versus Zarges

Zarges corners versus AluBox corners. The differences are subtle. The four AluBox rivet heads are exposed, Zarges are counter-sunk. Some say the Zarges corners stack better. Both are robust, both stack well, and the two brands can be intermixed for storage and stacking if you happen to own both.

Zarges on left, AluBox on the right.
Zarges corner, latch and handle details

Handles. Virtually identical. Both super strong with the same number of attachment rivets in the same locations. Both use springs to stay in the down position. Zarges handle is slightly longer.

Locking Latches. Virtually identical in form and function. Style points to Zarges for their branding.

Hinges. Both brands feature sturdy piano hinges.

Zarges piano hinge

Zarges Dividers and Accessories. They have a good selection of internal accessories for organization.

Weather Seals. Zarges places the seal in the lid, eliminating any risk of damaging the seal during heavy use. This seal may be hard to replace if damaged though because it’s a foam material that’s applied with adhesive. That said, AluBox uses a rubber seal on the box which is inserted into a channel and easily replaced if needed. I’ve yet to have an issue with that.

Zarges K-470 series 40678 with aluminum divider. Note foam seal in lid.

Trekpak. I used this for organizing the interior of my AluBox kitchen box. They were bought out by Pelican awhile back, this stuff works GREAT if you can find it in stock, and if you can stomach the ridiculous price. You’ll have to cobble it together piece by piece to fit your project but once assembled it is a stellar option that looks good too.

Trekpak insert

Let’s get some pros and cons for BOTH brands settled.

PROS:

  • Drop dead gorgeous. Your family and friends will be jealous. Guaranteed.
  • Completely weather proof. No water (or dust) intrusion is happening.
  • Timmy the Trash Panda will need to seek his entertainment elsewhere. 100% critter and bug proof.
  • Latches on both brands can accept small locks to keep honest people honest.
  • Very light weight given their size and capacity.
  • Durable. Will not warp or crack in the sun.
  • Cases can withstand EXTREME temperatures.
  • Will not rust.
  • Will not shatter upon impact if dropped like some plastic cases.
  • Stackable.
  • Square shapes with vertical walls enable maximum use of available square inches.
  • AluBox rubber seals appear to be easily replaceable if damaged.
  • BOTH brands have received the coveted Interagency Grizzly Bear Committee (IGBC) certification which means that certain National Parks, including Yellowstone National Park, will allow campers to bring their food supplies into the park when stored in IGBC approved cases.

CONS:

  • Sticker shock! The AluBox 42 L and 60 L (MSRP $290 and $295), and the Zarges K-470 series 40568 and 40678 boxes (MSRP $293 and $299) are a serious investment.
  • They may scratch easily in the field. Patina happens so embrace it.
  • Dents are possible. It hasn’t happened to me, but it’s a concern.
  • Metal gets hot. If you stack these boxes outside in the sun, wear some gloves.
  • Top plates (see Goose Gear) are an option hard requirement for overland use, and an added cost to consider if you want to use one as a step stool or table. Available for AluBox.
  • Top plates (see above) not available for Zarges at the time of this article. I do hear that Goose Gear may produce some soon.
  • Zarges foam seals on lid are well protected, but appear to be affixed with adhesive and may be hard to replace if damaged.
  • If you leave food in one of these and forget about it, you’ll enjoy an excellent science experiment and green cloud when you discover your mistake.
  • Ursus Maritimus can likely open all of these cases. Because Polar bears do what whatever they want.
Weather change while you were sleeping? No problems!
Sand and seawater resistant!

CONCLUSION:

So, which one is better? Like Jeep versus Toyota, which one is better really depends on who you ask. Each brand has it’s finer points and legions of fan boys who will argue them online. I will say that I am extremely impressed by the quality and customer service associated with both companies and can recommend both brands here with supreme confidence. Yes, they are expensive options as far a storage is concerned, but I always say buy once, cry once because you really do get what you pay for.

These timeless designs will be the last box you will ever need to buy.

Sadly, there are knock off boxes out there from companies like Swiss Link – so just say no to cheap Chinesium copies and buy the real deal from a reputable company like Equipt Expedition Outfitters or Zarges USA. They’re both pinnacle products that will be around a generation from now when your descendants find them in the attic or garage while marveling at your camping gear from a bygone era.

FULL DISCLOSURE: The AluBox products, Goose Gear top plates, and Trekpak featured here were purchased privately by the author for his personal use. The Zarges products featured here were provided at no cost to the author by Zarges for the purpose of this gear review.