Dometic CFX3 75DZ Power Consumption Test

[@salmanalghatam8173]

The #cfx3 95 is the best, I've used it in the desert camp last week and didn't need any power for a week, thanks to the #Anker 757 with solar. all cooled and good.

[@LokkiSomerville]

That is such a help - thank you. Nowhere in the manual had i found out about the graph reading Ah/h only when in DC mode. Nor did it say that the Ah/h graph is the total for both compartments combined. Super helpful! We had run this fridge of an ac inverter and it drained our 540Ah 12v battery bank with 7x 200w solar panels feeding it in 24 hours. So we definitely need to power this in DC mode directly from the batteries. Best wishes! Thanks again

[@RoamingDesertDweller]

Yes it's much more efficient in DC mode.

[@LokkiSomerville]

@@RoamingDesertDweller appreciate the info! Best wishes

[@AK2HI]

This was excellent thanks

[@graemeandrew6511]

Thanks for your review...what kind of set up would you need to run this 24/7..

[@joelbrown5772]

Real time usage, thanks for the vid

[@gslse21b]

I’ve run my CFX3 45 for a week already on diy 280ah lithium

[@ptescreen18]

Without any solar charging the battery???? Thanks

[@gslse21b]

Yes it is averaging.5-.7ah per day

[@TomArrrrr]

@@gslse21b per day? That’s awesome

[@gslse21b]

Over a month of non stop battery usage . The cfx3 data shows .5ah per day

[@jdevaux1994]

Mate are you aware you are reading the temperature line at the 5 min mark and not the AH the fridge is consuming, the AH eill show as an orange bar graph rather then a white line.

[@RoamingDesertDweller]

yes i noticed that after recording and mentioned it in my update video.

[@mrchrisknight315]

I have the 95l version of this unit. I have mine set at the recommended setting of -15c for the freezer (over compressor) and 5c for the fridge side. I'm running it off DC. My unit is powered on for 25 minutes, if you include the time that the exhaust fan runs. Off for about 6 minutes. Do you find your unit performed like that? Also the app will change the information if you back out of it and re-open the app, about half the time.

[@JohnBobRoger]

Yes yes..Z = Zed....great vid.

[@overlandgcc]

Strange the freezer is using less amps, one would think lower temp needs more amps, maybe the position of freezin element plays a role.

[@JPSnyder1985]

This was a very helpful review!

[@OntheFarmAus]

i just bought the 25litre. it charges great with the AC power, but when i connect to dc, the temperature starts to get hotter. is there something wrong with my chord? I have tried plugging it into the car DC and my ecoflow battery

[@RoamingDesertDweller]

Check the amp rating on the 12v socket you have it plugged into. I find that most of them are rated to up to 5amp dispute being fused at 10amp. Many outlets will only have a max 5amp output. Your fridge likely maintains a temp and uses around 2amps but will occasionally spike up to 7-9amp for a short period when the compressor kicks on. This spike often causes the outlet to temporarily shut off or not deliver enough power. A good sign this is happening is if you hear your fridge cycling on and off alot without shutting off (loss of power)

[@anwarh602]

Hi..how long did the fridge run on the battery? Did it stop early due to the battery protection in the fridge? Thanks for the vid...this is exactly what I am trying to figure out.

[@RoamingDesertDweller]

It ran for just about 1day and shut off due to the battery protection that was set to low. I ran the test again with another battery setup which I will post maybe tomorrow. Which had interesting results. And now I've decided to go for my own battery solution and custom box and solar charger so I'll make an update video of that whole setup once I finish wiring all the plugs etc.

[@RoamingDesertDweller]

28hrs*

[@CanesFan65]

@@RoamingDesertDweller I hope you can do a video with your final setup. I'm in the USA and bought this same cooler in February 2020 right before the Pandemic as a backup mobile freezer and I bought a 160Watt DOKIO solar panel from Amazon. I have NO IDEA what battery I should buy. My goal is to have the ability to run this cooler for at least 5 days continuously off of AGM or LiFePo with solar panel. Assuming I can get enough daily sun to charge the battery - I was thinking a 100ah Battle Born should be good. I know they are expensive but I am wiling to pay the high price for Quailty. Do you agree that a 100ah BattleBorn will work for my needs? I am only GUESSING and have no idea. Thoughts?? Thanks for the video.

[@RoamingDesertDweller]

@@CanesFan65 there's a lot of variables. (climate, location of the fridge, how often you open the doors, set temp, etc) that will determine what size battery you need based on your consumption. Keep in mind the larger battery you get the more solar you would need to charge it at the right amperage and longer it will take to get to a full charge during sunny days. But it would seem what you're stating would work just fine in ideal conditions for continuous use

[@danmanlivingthedream]

Hi mate, nice test. I have a 75ah optima yellow agm Batterie and a permanent 200watts solar system on it. If I stay on a place I put a 100watt solar panel on top. Do you think I can run that fridge with that? What's your results of the test? How long was the fridge running on the 70sh battery? How does it run real outside conditions? What is your experience? Regards

[@RoamingDesertDweller]

Yes that seems like plenty of enough to run continuously without issue.

[@RoamingDesertDweller]

Just keep in mind you don't have 75ah of usable battery power and the solar power you produce will also depend on the charge controller output and panel pmax power. But it sounds like you would be just fine. When at temp these fridges are pretty efficient. If it'd cold they pull only about 2amp per hr on fridge and freeze mode. If it'd hot out expect much higher. 4 or even up to max 9ah if the fridge is in the back of a truck etc.

[@kengeroo]

so what would be the most efficient way to power the unit off a jackery ? using 12v or 120 AC ?

[@RoamingDesertDweller]

12v for sure

[@thepatternforms859]

How much solar watts needed to run this continuous without ever stopping?

[@0724firecracker]

100watt solar panel is enough to run it. I have 100w zamp solar panel paired with dometic PLB 40 and hook them for uninterrupted power supply. when im on the road i plug the battery into car's AC charger to be on safer side and when you turn off the engine battery starts feeding the cooler

[@waldemarreczydlo3830]

Hi, Since yesterday I am the owner of CFX3 75 DZ. I have two questions : 1. Can I use the electric extension cord when the unit is left in the car overnight? 2. How should the temperature be set if the power supply is from the DC plug?

[@RoamingDesertDweller]

you can use the 12v power cord in the car overnight but depending on your car the 12v socket it is plugged into needs to always be on, some cars turn off power when you remove your key so check on that. You can set the temperature to whatever your preference is however keep in mind it will pull a lot of power when you first start and the fridge is working to get to the set temperature, after it is at temp the power it uses to maintain is quite low. (few amp) if its powered by the same batter you use to start your car be sure to change the battery protection settings on the fridge to high so it will shut the fridge off before it drains your car battery too low to start the car.

[@thepatternforms859]

How many watts is 3.3amp hours how much solar needed to run continuously

[@RoamingDesertDweller]

3.3ah will be about 39.6watts per hour if you're using a 12v system. How much solar you would need to run that continuous depends on the battery type and size, charger, and solar panel used as well as how much sun you get per day. In order to continue to run the fridge at night make sure the solar is enough to run the fridge during the day as well as top up the battery enough to keep the fridge running at night.

[@RoamingDesertDweller]

You'll need to account for other contributing factors to energy loss and efficiency like ambient temperatures and weather. For example if you live somewhere that it snows, the fridge will be idle most of the night. If you live somewhere in the desert the fridge may be running all night to keep the same temp. Therefore Power consumption will be different, the same goes for weather conditions. Cloudy weather will yeild less solar input to your battery. That is why it's best to look at worst case scenario, what is the max power draw of the fridge and plan for a battery that can meet that and a solar that can exceed that by twice (so it can run the fridge during the day and charge the battery enough for night)

[@dodgeis4me]

how much does it consume if u only use the smaller side and leave the bigger size off?

[@RoamingDesertDweller]

The compressor is the same so it will consume about 1-2 ah when it's on and at a maintaining temperature. The only difference is that the compressor will cycle on and off less If you only have one compartment cooling. (Also depending on where the fridge is such as back of a car on a hot summer day etc)

[@Ashley-vz3nm]

FROZEN car fridge can reach DOMETIC's standard, but at a better price. Just have a try man!

[@Sloba1992]

Hi I want to buy cfx3 95dz for my semi truck, on domestic web site i can see rated input dc is 10.4 A but on my semi is 10 A, is that can be problem?

[@RoamingDesertDweller]

I'm not too familiar with the amperage for the 95. But the 75 is pretty similar, 9amp I think is the max amperage for the 75 when the compressor kicks on. Things you should keep in mind are that while the fridge may pull 10.4a like you say it will not do that all the time. It will stay around 2a once it's down to temp and depending on the ambient temperature where you have it will turn on intermediately to keep the temp so amperage will spike only during that time. Most 12v (cigarette) sockets are fused at 10a you are correct but most of those sockets main output is a lot less than 10a. I had this problem with my battery box I built. I would recommend buying the dometic power supply plug they sell. It's cheap and that way you can unscrew the 12v plug and screw it directly into the 12v port so it won't vibrate loose and will get the correct power amp.

[@RoamingDesertDweller]

www.amazon.com/dp/B07WSXYCR6/ref=cm_sw_r_cp_awdb_imm_QDGJR5N5QJT7386HEG0F

[@vin9976]

Hey are you still liking this Fridge? I noticed that you aren't allowed to have AC and DC plugged into it at the same time (there is a sticker on them) after some issues. I'm trying to decide between this and the National Luna Legacy 72 Dual Zone which is only another 200$ but looks pretty bullet proof. That being said, these look pretty sweet. Any issues you've seen?

[@RoamingDesertDweller]

Which version wont allow you to have both plugs in? This is the CFX3 the newest on the market and i didnt see any sticker or any messages telling me i couldnt have both plugged in, also the plug design is in a way where you can have both in at the same time, so i dont see any reason you couldnt. So far i love the fridge. its super spacious and deep. i like how much function it has with the ability to turn one side completely off or set either sides to fridge or freeze or both the same. I looked at the national luna as well. The main decisions that make you decide what fridge to go for will be different from mine. To me, availability is one (national luna isnt here and would need to be imported) aftersales support for warranty or replacement is important for me. and power consumption. this fridge averages around 2 or 3ah when running both fridge and freezer. its not the lowest but the trade off is its size overall and compressor are compact. also i like that i can take the lids off and reverse them if i prefer to have them open from the other way or change my car setup.

[@vin9976]

@@RoamingDesertDweller Yeah they had some recall or something like that with the fridge. The manual for the CFX3 75DZ was updated and now says "Do not connect more than one power source to the product at any given time. Electrical system damage can occur and may result in a fire" on page 25 of the AMEA manaul. I saw that issue popup on ExpeditionPortal when Dometic responded to the issue. Apparently if you send it back, it'll just come back with a sticker saying to only use a single power source at once...which is a step back from the old CFX and everything else. Weird to me as well but kind of bummer. I did speak to a large dealer who said it had been "fixed" but wanted to verify it with people actually using it.

[@abelvazquez6012]

Any issues with the CF3 75DZ ?

[@RoamingDesertDweller]

No so far all is good. Working great no issues

[@whateverthisis3929]

You should get a watt meter and measure 24h of usage in watts.

[@viktorjarinov8854]

That's fenomenal how many people now making 15 min videos for subject require few sentences. And majority has no basic knowledge about it. " consuming more voltage" I still didn't get what is this unit awerage power consumption in watts.

[@KnowTheNewOfficial]

If I use the jackery 1000 solar power station then how long will this dometic cfx3 75 run continuously? Can you please tell me about it? Have any idea?

[@RoamingDesertDweller]

It will depend on many factors like the location you keep the fridge. For example if its in a hot climate the compressor will be turning on more often. Also if you have the temperature set low like freezing, it will turn on more often to keep it at that temp. But for example if you live somewhere where it snows the compressor might not turn on as often. How often and how long you open the fridge doors will even effect the temperature . So an accurate answer depends on your specific use situation. But with some simple math we can get a rough idea for you. A 1000w lithium system like the jackery is about 83ah. (Watt ÷ 12volts) and worst case If both compartments are set to freezer and running constantly at 7ah you can expect worst to be 11hrs. But more realistically around 4.5a which is 18hrs. If you're in colder climates or have them set to fridge or only using one side of the fridge or are conservative with your use, you'd probably average about 2.5ah and that should give you 30hrs. So short answer, depending on your use you're looking at anywhere from 11hrs minimum to max 30hrs. It's worth noting that dometic also have low voltage shut off for battery protection. This cannot be turned off completely but can be set to low and around 10.5v the fridge will turn off to not damage the battery. I am not aware what voltage the jackery is at when it reads 0% power remaining.

[@KnowTheNewOfficial]

@@RoamingDesertDweller in the SUV then how long will It run continuously? South Asia country