The EcoFlow Delta Pro Ultra - In Depth Review & Testing! 

I am purchasing one probably with a secondary battery and I've been researching this for a long time and watching a lot of fellow RU-vidrs and their videos. I have to say yours was definitely the most informational and extremely well done. Thank you for it

Amazing. But don't forget that, when talking cost, having a solar array that can effectively charge this thing in one day is part of the investment. In the NE where I live, winter is the time when you want backup power the most, and is also the time when the sun provides the least amount of power (it's cloudy a lot here). Factor that into the cost of operating and using this beast.

If only all reviews were this thorough!

Best review I've seen on this system. Great testing. Joe

Thank you for the very indepth review as always Jason. If I needed a plug and play solution, this one sounds like a winner.

I am so glad to see this from EcoFlow and that I waited !! Fantastic review Jason 👍👍

Excellent test Jason.!! These are so far impressive units. Now that all the holidays and travel are over I can back to my testing!! 😀

I believe this is the most comprehensive review video you've made yet! Thank you for the 'simple' explanations, also. This video is going in my 'Home' library playlist for future reference! Thank you, Jason.

This is a great place to start, very simple.

Beat channel out there for this content.. thanks!

nice vid Jason.. great review

Great review and very objective analysis. Just picked up one, hoping to see the extra batteries drop in price later in the year. Excited to pair it with some solar and move some loads to the unit.

There are a bunch pf youtube videos on this product and all of them cover the same ground. I learned several things from your excellent video. Thank you for being different.

I have 2 of these and I can confirm that they can sustain 7200 watts. I watched one of mine sustain 8400 wats for longer than 10 seconds and never shut down. I eventually reduced the load.

Comprehensive review, thanks! This gives me much more peace of mind on the Ultra - so far their marketing has been a bit shady, but looks like it's indeed a good product.

Thanks from Canada. 👌

Nice test is that i was looking for i am subscribed

I am a newbie to all this i have been studying. Im confused about input and output. I need something that can figure that out for me so i dont mess it up. Also I am really impressed how you reply to all the questions. Most dont do that. Thank you for schioling us.😅

great video. perfect timing for me because we have some nasty weather in my area and my 6 year old was asking me this morning how we can get water if we don't have power (we can't because we have a well and no generator). our house is all electric and one of these days all add up all the loads and size out what size battery backup we would need. I would really like to have one that can run everything. we have dual heat pumps for home heating/cooling, a heat pump water heater, electric washing machine and dryer, 2 fridges, the well pump/pressure tank etc... quite the load.

This thing is a game changer. If I didn’t already have multiple Bluettis and extra batteries I’d get one of these immediately.

I’m almost convinced to buy one

Again the best report on this unit. you are awsome you should have 500k subsriber your review are top noch ,..... The little negative is battery are too $$$ but I'll wait to get sales I got a unit and it is first quality thanks

Nice video! I cant wait to see it connected to a house during a power outage and its performance to run high powered appliances such as water well, septic tank, kitchen stove, microwave, full size refrigerator, small freezer, and how long the battery will last. If it could run a full day and recharge in 2 hours that would be fantastic! I think some of us would use a gas generator during a emergency to recharge this ecoflow and wonder if that would be possible and how long to fully charge. Its so expensive so these questions would make the difference as compared to cheaper brands such a Anker Solix F3800, and Zendure Superbase V.

Jason, please add one more type of test: fully charge the unit n let it site NOT powered on. We would know what is the capacity loss while not powered on. You have the most comprehensive tests of all reviewers. Thank you.

Thank you for the in-depth review and testing. I'm new to this market, is Ecoflow known to have major sales? like 15% or higher off? Amazon has the inverter and 2 batteries for 8800 but I'm hoping for a sale sometime soon.

Great comprehensive review. I was looking at this unit and comparing it to the BLUETTI AC300/AC500 with B300 external batteries and solar panels as a potential partial whole house back-up. My biggest concern with this EcoFlow unit is its shear size and weight. When you combine this with the fact that the batteries on these both systems can only be charged and used above freezing temperatures, it can mean that you may have to move them around periodically - especially when solar charging and if you live in a colder climate. So, mobility is a concern. I would also miss the flexibility to use the external batteries connections to power and operate certain items like the BLUETTI can . It didn’t appear as though the EcoFlow units external batteries can do that - unless I missed that somehow. Overall, it looks like a nice system, but I think the BLUETTI system might be more scalable and modular for my needs - with the additional flexibility in terms of mobility of the system and better usability of the external batteries.

They need to make a Milwaukee Packout version of this.

Thank god , popular channels like jerryrigeverthing have such a malnourished review this has all the details I need

You exceeded your standard with this review. This Power Station is indeed a beast. I have a small apartment in New York. If I had the room, this would definitely be a prime contender. Enjoy the "Beast!"

Need to make a 200amp Smart Home Replacement Panel.

Good video. Like the info and pace. Request/recommendation: please use the dip to black transition in your edits sparingly. It became difficult to tolerate by the time I was halfway through your video. I know it's a creative choice in editing. Just a thought from a supporter.

Wow! My next power station! About the simplest way to keep a well pump running! Thanks for reviewing. As with the AC180, if you are looking for DC, you are looking at the wrong thing.

I had to slow the video down but still very informative

Thank you for a very comprehensive review! To charge from a gas generator can you use the AC input port or is it necessary to use the infinity port with the dongle you showed? And does it matter if the gen is bonded or floating neutral?

Great Review. Best so far! Just to confirm the Solar input is "DC"? Given I have a 7.2KW Solar Array with microinverters (AC). what are my options to power the DPU? Also, could a EV (Tesla, Ford Lightning) use the infinity plug to charge the DFU? FYI, Love the Spreadsheet.

super detailed review , great job , I do have one question can you use the eco flow dual generator with this unit and do they have an adapter for that use

I have an electrical plan that I do not pay for electricity from 9pm to 7pm and would like to charge it up with a regular 120-wall outlet. EcoFlow cannot answer that question. Can you tell me if that can be done? Thanks

Great video! Thanks so much!! I have only 1 question that I can't find the answer to no matter where I look. Can this unit power a space heater for 6 to 8 hours, with the space heater being the only thing plugged in? That's the main reason I want this unit. My utilities are really low, but I need alot of heat in the winter. Thanks again!!

Can you run any kind of heaters or electric owns from this?

I believe I am going to buy this for a fridge and an AC in the Keys.

So I finally found a ham radio cross check. 2 meter 146 mhz…..another opinion on DPU to share. Another guy on a Solar platform. ( I had also called support one time and they had similar failed answers and web info is quite limited as this guy suggests and I too confirm. To bad because the specs seem good ). “ Pulled the trigger on an EcoFlow Delta Pro Ultra (DPU) and I'm kind of meh on it and unlikely to expand or integrate it into the house. I got the $1k off discount. I'd previously built (and still have) a DIY system using 400ah of SOK batteries, a Giandel inverter, and victron for the solar charge controller and shunt. I really appreciate the DIY process and plan to do a 48v system next. But I needed more capacity ASAP and the DPU looked like the most expedient option. Things I like: Well packaged Worked out of the box Battery cables are very low profile Dislikes: No real manual. All they have is the web user guide which is superficial if I'm being generous. I asked support about it and they pointed me at the web guide I was complaining about. Twice. It's reasonable to expect to be able to download a comprehensive manual for offline use and to find/search through. Radio Frequency Interference (RFI). Even when the inverter is not running, it interferes with common frequencies like 146.520MHz. I'd be more forgiving if it was when the inverter is on, but neither AC or DC are on. Turn off the DPU, emission goes away. I contacted EcoFlow support and they told me I could put it in a "faraday cage". (╯°□°)╯︵ ┻━┻ No State of Charge graph in the app. Figured if they were showing charts of Input and Output over time, they must have a SoC chart. Nope. I contacted support and twice they told me to go to the app screen with the charts, which only has input and output. SoC / shunt seems unreliable - After a full 100% charge and plenty of time to balance, I lowered the full charge level to 90%. Each night I'd run a load of about 330W AC while the input was switched off. At first it'd do a night (8 hours) and have something like 54%, which is about right for the size battery and inverter efficiency. After a few days of using it overnight and letting it charge back up to "90%", it'd go from "90%" down to "8%". Quotes to imply my skepticism of its readings. Last night I charged it back up to 100% and it ended at about 54%. So I have trouble trusting the SoC. DC output PowerPole has an annoying over-under orientation. Most DC users follow a "Red Right, Eh (A)" convention where, when looking at the powerpole, with the Anderson A in the normal upward orientation, the red positive connector is on the right. The DPU uses an over-under orientation so I'll need to remember to keep an adapter cable with it. Can't turn the unit off while it's plugged in. It just won't do it. You need to unplug or switch off the AC input in order to power down the unit. The name, "Pro Ultra", come on ;-) I could live with these frustrations more if it was a few hundred dollar small capacity product, or even mid level. But for their top of the line product, it's disappointing. If I didn't have these experiences, I'd plunk down for more batteries and the Smart Home Panel 2. As it stands, I'll probably sell it once I build a 48v DIY system.”

Well, I am not going to lie, this unit beats the pants off my jackery 500. Quick question, I noticed you stated twice that it can be charged with a 240W gas generator only. Does this mean I can not use by Honda 2200 generator, or does it mean for that port only. As always great detailed review.

i wish i could trade my delta pro and battery in for a discount on one of these.. but only if it can run a wall a/c while it also charges.. unlike my delta pro.. i would suggest that people wait a year or two before getting one so maybe bugs will be worked out and improvements might be made.. but also be prepared to wait to get it then wait longer when you have to return it then wait longer to get a replacement then do this over again if it is anything like the delta pro

You can connect another 14 expansion batteries, to get up to 1500% battery, which is insane.

👍👍👍

Question, What good use is the 240v socket if you can't run an Electric Stove/Oven with it? I just bought the DPU the other day and I'm trying to make use of the 240v socket. The only thing in my house that uses 240 is the Electric oven. I was getting ready to buy that 10 circuit transfer swith you have in this video till I found out you can't use a stove. The transfer swith I have now is small, it only has 4 circuits on it.

Hey Jason, Just now watching the EcoFlow Delta Pro Ultra review and the same question as the Anker Solix F3800. And another awesome video! It didn't seem to have a DC charging input spec around 50volts, so curious if I would be able to tap into the Eco 48V, 105Ah LifePo4 golf cart battery and charge up EcoFlow Delta Pro Ultra with a XT60 cable with O ring ends or would I use an MC4 cable with O rings. Thanks

@16:58 How does 'pass through' charging work when it's taking in 120v and passing through split phase 240v?

We live in SoCal in a pretty small home. One standard 20 cf size fridge(w/small top freezer) and a 15 cf freezer in the garage. Lets say there is an issue and we need to run power for a few days etc... Is it possible to run the home using solar panels during the day and have enough left over from the panels to charge up the battery? Also how many panels (w/rating) would we need to do the job? We just have one small desktop computer and one 65" 4k tv in the home. Thanks....

When you hooked up the ultra to wall power, 1,800 watts maximum, and had 240 volt output you showed less power going out than what was coming in. Did you test having more power going out than coming in from the wall? Thanks. My potential application is during emergencies or no solar I can hook the 1,900 watt AC (120 volt) out put from my Inoiq5 (Vehicle to Load) and take advantage of it's 77kwh battery to supply some power. This is the only system I know of that can take 120 volt AC input while also providing 240 volt output. I just don't know if the 240 volt output can be more wattage than the 120 volt input.

Excellent review. Would love to get one, but my breaker panel is installed outdoors. Have no option of moving the EcoFlow Delta Pro Ultra indoors since my kitchen is on the other side of the wall and garage is detached. I assume the answer is no since it was not mentioned by you (and the Ecoflow has a listed operating temperature of -4F to 113F), but are there any permanent outdoor solutions to use the Pro Ultra?

Hi, I was ready to charge up my new EF Delta Pro Ultra using an AC receptacle. However, the AC input on the Delta Pro Ultra says 15 Amp Max. Unfortunately, all the outlets in my basement are on 20 Amp circuits. Can I charge the Delta Pro Ultra on these 20 Amp circuits or, must they be 15 Amp circuits? Does the Ultra possibly regulate the amount of Amps coming into the unit? Thanks.

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3:30 does this thing require an INVERTER GENERATOR on the INFINITY PORT? No One ever discusses that

If Power goes out, and drain batteries, and then power comes back on, will the Inverter power back on automatically, or do you have to actually physically turn the AC output, or inverter back on. Just thinking about an instance where you are out of town and power goes out, and it's backing up your Fridge, and batteries die before power comes back on, then power comes back and Fridge stays off until you get home to manually turn the inverter back on.

What is the top DC connector/plug type called? I can't find it anywhere and I'm about to use paperclips to connect this bad boy to my RV. I want to replace my old deep cycle battery and hook this up directly. Why us it so damn hard to find the connector with pigtails?

Where can this be purchased in Nigeria please?

Very nice video review. If I have solar and wall power charging this and leave a couple devices plugged in 24x7, will it keep the batteries charged with solar and not use wall power unless absolutely needed. I'm looking to lower my power bill with this. Does it work like that? Thanks. :)

what happened to the coupon?

Is the smart home panel 2 rated for outdoor install? Or indoor install only?

Will you be actually using this as your home backup?

im actually wondering, 9:50 does that say 16 days 8 hours and 17 minutes? am i reading that correctly?!?!? or is that 16 hours?

Where is the coupon you said it was in the description ?

Is this the type of battery that should be stored at 80% for best longevity or can it be stored until needed at 100%?

Does the Ecoflow dual fuel generator charge this DPU using DC to DC? I never see the 2 of them mentioned together.

Im thinking about getting 2 DPUs with a 50 amp hub anf installing a generator inlet by my panel for shorter outtages and then for longer situations, having an unlet outside for a 13000 generator running on LPG. Figure having those options can work together in extended grid down situation and if the weatjer does not cooperate for solar.

Excellent review, with top-notch video production, but I'm just scratching my head on this offering from Ecoflow. The rolling cart looks to be well made, but that was essential if they were going to continue to call this thing a "portable" power station. Frankly, this "Ultra" product crosses over all of the lines from being a portable product to one that is, for all reasonable intents and purposes, a stationary solution. If you're going to build a stationary solution, it is just as easy, and MUCH CHEAPER, to do so with one of the DIY-friendly, all-in-one inverter/charger products that have hit the market in the last year or two. For MY $5,800 - I'm buying two EG4 6000XP inverters and a couple of server rack batteries. For that money you would get nearly twice the inverting capability, 40% more storage, tons more PV input, and the only compromise is that it wouldn't be "portable"...but neither is this monstrosity from Ecoflow, really? There is only one possible use case where this product makes sense, and it's a stretch: If you've got a large RV and an off-grid cabin that you split time living in, this product could theoretically work for both. For any other scenario, this is just a really expensive and "pretty" solution, where a home-owner would be better served by building a normal component-based system to meet their needs.

Is the introductory period over already? As of April 28, 2024 their website says the set of one inverter, one battery and one Power Panel is $7,500 not $6,199.

You and 5 other channels I watch all put this video out within a couple hours of each other. Does ecoflow let you keep the things you review?

where is the $1000 off coupon? I want to buy one of these.

How many one on one with the keeper does dcl need to actually score😢

Have existing solar panels (4.5KW) on my roof with inverter etc connected to the grid. Can I use the existing panels and feed them to this to charge it directly without going first to the grid?

This is pretty expensive compared to the EG4 stuff that's all over RU-vid. Can you compare things like this and the Anker stuff to the more "traditional" systems like EG4?

Hey quick question. Is the ac 120v input working like the delta pro? If you have the charging set to 1200 and the load is 500 is the input pulling from the ac charging at 1700? Hope this makes sense. Thanks! And you can charge with 120v input while running the 240v output right?

I saw a video that said this thing has horrible Radio Frequency Interference RFI levels…any update on how this has worked long term?

heh, power on yer mind.... AC radio....whereja get those AC batteries for it? :)

I think personally id rather buy a solar bundle for 6 grand that includes recharging the battery in the price.

No coupon code :(

Wish they’d put EV charging like the Anker Solix…

Is theEcoFlow Delta Pro Ultra is "floating neutral" or "bonded neutral"?

I just can't phantom using that much power after years of being scared spitless from all these utube videos I've finally started my journey to solar and I found that my biggest power hog my furnace only uses 190 wants 220 at start up from other videos I found out the fridge and freezer isn't much more so now I'm trying to figure out what can possibly use so much power so maybe I can't run my frying pan with the microwave or toaster but if people can't wait 10 minutes or less to start cooking or making toast than you need deeper pockets than I have I'd love to see one with the expansion capacity like this a unit with 1000 watts on both legs would do me should be more affordable for those of us seniors or lower income users who don't have a 6 figure income or the ability to go to the bank for a loan

no coupon

Battery Chemistry Type?

Just wondering about the UPS function on 240 Volt -obviously charging at 120V would require the inverter to providing a 240 Volt Split Phase output, which means the inverter is always on, regardless of what UPS mode the unit is in. If the 240V Split-Phase (Generator) (Grid?) charging input is used in UPS mode, does this supply then pass through completely as it should, with the inverter only kicking in when the Grid / Generator supply drops? Not seeing a clear explanation in the owner's manual or any review of the Ultra so far. Cheers!

Where's the coupon?

Always out of my budget.. Maybe refurbished ones before too long.

Would you please try out the generator charging? The manual has a note that makes it sound like you can't use the outputs while generator charging (no smart home panel 2, just the DPU). "CAUTION Keep the AC power button off while recharging the product through a high-voltage wall outlet." Their support says this is because "Bypass Mode" isn't available when charging via 240v. Their crappy manual barely mentions bypass and doesn't give the technical details a manual for a $5k device should have.

Connection cable looks like a problem

Looks like the UK version (if we get one) will be downgraded from the generator switchover options you guys are getting. Its also not really competitvely priced compared to the rack batteries option. I can get 4 AO Lithium rack batteries for nearly £3500 here. Thats 20kwh. As much as I love Ecoflow they're becoming Apple.

Third youtube review I've watched on this product and what I noticed is no one comes out and talks about how silly these would be for back up power. I have 3 refrigerators not counting a wine frig and 2 freezers. Just to power those and the blowers on my gas furnaces would require about 5,500 watts and easy 7,500 when the compressors and igniters initially kick on. So for over $5,000 I get one our of back up power. Or I can use FOSSIL FUELS and power everything in the house with ease. I do like the ability to charge it with 120v or 240V from a generator but unless you live in an apartment or CommiFornia I can't wrap my mind around the cost to benefit for back up power that is. Nice breakdown and review but these are still way to pricey. They are getting a lot better but the price points are still out of range for most Americans.

The Online Ups is NOT a UPS, it simply always pulls power from the battery, its not switching from anything. You say multiple times that its switching when its not.

Way more expenaive than an EG4 all in one unit and 48V Lifepo4 batteries. Will Prowse knows his stuff. Buy that rather than the Ecoflow for home backup.

I like the high-tech look of it, but for us normal people who aren't getting them for free... the price point is just way too high. Hard pass! Just saying. :-(

Nice video just 13:18 RU-vid speech cadence bugs me. Nobody talks like this in real life

For the money I'm heading to my local Chevy dealer for a new 'ride' . . . . . . . .

It is good that people are mioving from dirty to clean energy, couse we must save our planet. Couse if no then God's patients will be over .

How long have you worked for Eco-Flow? Just curious. You sound like a salesman… A car salesman..

This EcoFlow Ultra environment, while impeccably engineered on the surface, is flawed and not ready for prime time. The hardware installation and set up is simple and somewhat straight forward, but that’s where the full beauty of the design ends. The software and app that are actually responsible for insuring that you have power when the grid goes down do not deliver. The biggest issue is the parasitic draw down on the battery when the system is in idle. There are a number of functions on the app that conflict with one another, making work arounds to reduce battery drain impossible. Some app features don’t work at all. And as mentioned in another post, customer support, while courteous, is basically useless. The jury is still out to see if the software functionality is going to catch up with the hardware. I’m not holding my breath…

And you are number hundred of reading the script of the product manufacturer. Gets me really Eco-overflowed. 👎👎👎👎👎

What was the model of the Reliance Controls Power Transfer System did you get?