So, two parts:
1: The Echo Flow Delta 2 Max
I had initially just gotten this to be the power station for my camp setup. But thinking about it, it's a lot more than that. It can be used to recharge my RC batteries while at the RC field. It can power appliances at home. If you need to power a light system for the backyard. Power a projector and laptop while out at the park. It's portable power...
This is 50 lbs. It is heavy. But the handles are sturdy. Packing it into my SUV I can put things on top of the station and it won't slide off. The handles are study, if this is the only thing you are carrying at the moment, no problem. For the amount of power it stores, 50 lbs is about right. 85" TV and 350W speaker bar/sub 13 hrs run time. Yeah, I like this thing!
2: The Echo Flow 400W Solar Panel
So, in full sun light, if you line it up to the sun exactly, I get about 389W of power coming through. to line it up close to what's needed to get max wattage, get the Solar Angle Guide. Changing the angle with the Solar Angle Guide 10 degrees, increased output from 326W to 384W. Well in that particular instance. In the evening shade, no direct sun light, I was getting about 36W of power. I've only completed one full charge during various times of the day. So I can't give you an exact how long it'd take from 30% or less with good sun light to charge with this panel. But I would say about 9hrs at least for a 70% charge? I need to play around with the charging more to a have a better idea on how long and what level of sun light.
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From the brand
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EcoFlow's DELTA Series is recognized by some of the most prestigious international awards. The flagship product of the Series - DELTA Pro, was named in TIME's list of 100 Best Inventions of 2021. It also won the 2022 Red Dot Design Award along with its ecosystem accessories. The 2022 iF DESIGN AWARD named the DELTA Pro, DELTA Max, 400W Solar Panel, and Smart Generator the winners in the product discipline.
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Prime Choice
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Ditch Gas, Go Solar
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Videos
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Videos for this product
1:38
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Should You Buy ECOFLOW Portable Power Station DELTA 2 Max?
@LornaFinds
Videos for this product
2:25
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Delta 2 VS Delta 2 Max - How Long Do They Last? Fridge?
Call That Geek
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1:44
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A must have if you love camping or just want to be prepared
Rachell
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4:41
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My solar powered office with EcoFlow Delta 2 Max
Tools. Electro. DIY
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1:21
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Is EF ECOFLOW Portable Power Station DELTA 2 Max Worth It?
@LornaFinds
Compare with similar items
This Item  EF ECOFLOW Solar Generator DELTA 2 Max 2048Wh with 2x220W Solar Panel, LFP Battery Portable Power Station, Up to 3400W AC Output, AC + Solar Fast Dual Charging Full Charge in 1 Hr For Camping RV |  |  |  |  |  | |
| Price | $3,199.00 | -21% $234.72 List: $299.00 | $2,999.00 | $1,899.00 | $1,649.00 | $189.99 |
| Delivery | Get it May 17 - 20 | Get it as soon as Tuesday, May 21 | Get it May 17 - 21 | Get it May 17 - 21 | Get it May 17 - 21 | Get it as soon as Sunday, May 19 |
| Customer Ratings | ||||||
| Battery life | ||||||
| Noise level | ||||||
| Charging power | ||||||
| Value for money | ||||||
| Portability | ||||||
| Sold By | EF ECOFLOW-US | Amazon.com | EF ECOFLOW-US | EF ECOFLOW-US | EF ECOFLOW-US | YESPER DIRECT |
| fuel type | Electric | electric | Electric | Electric | — | Electric |
| power source | Solar Powered, Battery Powered | Solar Powered | Solar Powered | Solar Powered | Solar Powered | Solar Powered |
| engine type | — | 4 Stroke | 4 Stroke | — | — | 4 Stroke |
| output wattage | — | 600 watts | — | 500 watts | 220 watts | — |
| runtime | 43 minutes | 3 hours | 43 minutes | 3 hours | — | — |
| wattage | 2048 watt hours | 600 watts | 2048 watt hours | 1024 watt hours | 1024 watt hours | 299.52 watt hours |
Reviews with images
Blackout Buster
For a long time now, I've wanted a small generator to keep critical appliances up and running during power outages. Critical defined as: Refrigerator, sump pump, furnace blower (heat only), modem/wifi, TV, couple of lights, and personal electronics. So with this in mind, I purchased a Honda inverter generator a couple of years ago. The 2000W rating is enough for my needs as the major loads are intermittent. However, small gas generators have one glaring drawback. These become thief bait when not being monitored at night or when you're not home. So I decided a solar/battery generator would solve this problem. Put simply. Run the EcoFlow at night. Charge it with the gas generator during the day. With that in mind, my needs are a minimum 2000W output, runtime of 6 hrs with intermittent loads, pure sine wave output, and ability to charge from a less than 800W. I've decided to forgo the pros & cons and should you buy format of typical reviews. There's plenty of videos and written reviews if that's your jam. Instead I'll highlight the features that meet my needs and requirements. First this unit features 2048Wh array of Lithium batteries. This means (in theory) a 2000W load could be run for 1hr from this unit... Or a 100W load could be run for 20hrs... The real world physics and inefficiencies in DC-AC conversion make this impossible, but that's what Watt-hour rating refer to. But this will meet my need for an average 200W per hour load to run for at least 6hrs even with my battery limits set. (More on that below.) Output is 2.4kW with an optional boost of up to 3.4kW... check... I didnt bother testing up to these loads but theres litterally dozens of videos where peolple load their EF Deltas up with space heaters and hair dryers. But I have only seen one where somone reported the pure sine output... So I wanted to the investigate that one. One of the photos attached illustrates the output under a small load (25W) powering an LED TV veiwed though a Fluke 125B oscilloscope. This is an non-liear load so it could effect power factor and could be effected by modified sine output. But as the photo illistrates the waveform is a healthy pure sine wave, so no issues... I did monitor the load with a Fluke 289 checking voltage/frequency fluctuations and power factor issues. No issues to report. Let's talk about the phone app as seen though the second image. The app provides tons of telemetry on the unit. It's simple enough that non-electrical engineers can understand the important bits but allows for a lot of user configuration and connectivity. This unit connects to the internet via WiFi and pulls firmware updates. These allow the generator to be tweeked to improve efficiency and runtime. I'd like to highlight two screens in the app in particular. FIRST SCREEN) The AC input configuration. On the back of the generator (next to the C14 AC input) is a physical switch. First position is full speed charging. This allows the unit to be charged at up to 1800W. O.O OH my... that's a lot! 1800W is nearly twice what a microwave pulls. And like a microwave, if you choose to charge using the full speed charging you should do this on circuit where ONLY the EF is plugged in. Otherwise you will almost certainly trip a breaker. And NEVER charge at that rate through powers trips of extension cords. Most consumer cords/surge protectors just are not made for that much constant load. In fact I will only be using the full speed charging in a pinch... As in, I drive to the in-law's house to charge as quickly as possible. But frankly speaking, charging that quickly probably isn't great for the batteries. Just like cell phone, the quicker the charger charges the battery, the more heat needs dissipated. So option 2 is custom (or user specified) charge rate. In the app this is configurable from 200W to 1800W. Initially I set mine to 400W but have since set it to 300W. At that rate, it can charge from 20% to 80% in less than 6hrs. Charging slower does three things... Improves overall battery health by not generting as much heat, improves charging efficiency by not stressing the batteries or the charger, and leaves headroom for my usecase of charging from a 1800W Honda Gen.SECOND SCREEN) Battery charge-diacharge limits. The user can set min and max charge limits. Lithium batteries can be discharged much lower than lead-acid but my comfort limit is 30% and the hard floor in my opinion is 20%. Any lower any the batteries become damaged overtime. The same is true for the upper limit of Lithium batteries. 80% is a good safe limit. It's no accident that high speed charging time ratings are listed from 0 to 80%. Above 80% and the charger has to "pump" the current into the battery. Sort of like the last few strokes of a bicycle air pump. It becomes more difficult. Continually charging Lithium batteries to 100% will have a deleterious effect overtime. IMO, 80% is the maximum that the unit should be stored at. After removing from storage you can top it off if you want. For my use, I'll leave my setting as 20% min discharge and 80% max charge. If the outtage goes longer than one night I'll set the max to 100%. Overall I feel like the EcoFlow could've been my brainchild for a good as it fits my needs. But honestly I don't feel like my usecase is unique so that's the reason for this review. The Delta 2 Max is a good buy. Other than light fan noise, it's virtually silent. It's safe to use indoors, expandable, and a best friend to anyone lays awake at night worried about their sump pump or refrigerator. Couple of PSAs:I'm not getting into the floating neutral discussion. But if you plan on hooking this to a gas furnace, make sure you use something like an EZ-Gen or a small transfer switch that grounds the generstor. And use the supplied AC C13 cord. Don't use thinner gauge PC (C13) cords or extension cords as these can overheat, melt, or worse.
Top reviews from the United States
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Top reviews from other countries
Linghua DENG
Easy to use and well made
Reviewed in Canada on October 11, 2023Style: DELTA 2 Max 2048WVerified Purchase
Linghua DENG
Reviewed in Canada on October 11, 2023
The power station is very user-friendly and convenient. It has a clear LCD screen that shows the input and output power, the battery level, and the remaining time. It also has an EcoFlow app that allows me to control and monitor the power station from my phone. The app is very easy to use and intuitive. It connects to the power station via Bluetooth or Wi-Fi and shows me real-time data and alerts. I can also update the firmware and access customer support through the app.
The product came in a well-packaged box with all the accessories and manuals included. The packaging was sturdy and secure, and it protected the power station from any damage during shipping. The box also had a handle for easy lifting and moving.
Overall, I am very happy with my purchase of the EcoFlow Delta Max. It is a powerful, reliable, and versatile portable power station that meets all my needs. It is worth the money.
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Udon
Empowering Independence and Exceptional Service - ECOFLOW Delta 2 Max and Customer Care Excellence
Reviewed in Canada on January 5, 2024Style: DELTA 2 Max+220W Solar PanelVerified Purchase
lybb
A caregiver's lifesavor
Reviewed in Canada on June 25, 2023Style: DELTA 2 Max 2048WVerified Purchase
lybb
Reviewed in Canada on June 25, 2023
I’ll leave it to others to figure out and pinpoint the technical pros and cons of this device. All I can say is that for me, being able to generate electricity when needed is deeply reassuring and helpful.
I am amazed by Ecoflow’s user-friendly ecosystem and forever grateful to them for helping me sleep better at night. Indeed, knowing that my power stations, smart extra battery and solar panels will help me take good care of my 93-year-old mother, who has dementia and who cannot walk anymore, is priceless.
After reading extensively about Delta 2 Max and its LFP battery chemistry, deciding to upgrade to this device was a no-brainer. Also, the fact that a smart extra battery could double its capacity up to over 4kWh was a determining factor.
Add to these latest acquisitions two previously bought Delta 2, two 160 W portable solar panels and one 220 W bifacial panel (renewable energy now strikes me as pure magic), and we’re all set to face the next challenge.
We are blessed to live in a region safe from natural disasters, but power failures do happen - a disturbing thought in light of my mother’s condition. In fact, just recently we were out of power for five days but we managed just fine thanks to our EF products.
Although I was able to recharge my power stations twice a day thanks to our town’s generators and to friends who had power, I figured we still needed to be more self-sufficient, hence the purchase of a Delta 2 Max and of a Delta Max Smart Battery following that power failure. Those extra 4000 W give me huge peace of mind.
I can envision how much easier managing through the next blackout will be, knowing that our new equipment will give us greater leeway while increasing intervals between recharges. Mind you, our pair of Delta 2’s were incredibly useful during those five days without electricity, as they powered my mother’s lift, hospital bed and mattress. I could also warm some water to wash her in the morning. They powered our full-size fridge and 5.5 cu. ft. chest freezer, as well as the sump pump when needed. Router, microwave, coffee machine, cell phone, laptop, IPad, DVD player, lights, radio… bring it on !
As I am writing this review, we in Canada are on track for our worst-ever wildfire season, including northern Quebec. Although we live in Montreal, hundreds of miles away, some of these fires resulted in loss of electricity for tens of thousands of people in our city. There is no such thing as avoiding natural disasters’ impacts anymore and that is why you can never be too prepared.
What about Delta 2 Max’s lifespan of 3000 complete cycles until it reduces to 80% capacity ? this amazing durability is definitely impacting the way I am using it, for it is not only about being ready to handle potential emergencies anymore. Some days I just enjoy making good use of it by living partially off the grid. I’ve even reorganized the kitchen in order to make it more accessible when cooking, amongst other things.
Owning two Delta 2’s plus a Delta 2 Max seems to perfectly meet our needs, offering us a great mix between portability (Delta 2) and power (Delta 2 Max and an extra battery). In fact, being able to rely on such extra power definitely feels like we’ve reached the big leagues. It’s a great feeling.
Images in this review
DenB
A Huge Improvement Over the Competition
Reviewed in Canada on October 16, 2023Style: DELTA 2 Max 2048WVerified Purchase
Kham
A very good Solar generator.
Reviewed in Canada on November 17, 2023Style: DELTA 2 Max+220W Solar PanelVerified Purchase
Kham
Reviewed in Canada on November 17, 2023
One nice feature of the Delta 2 series is that it is firmware upgradeable and can also be controlled by an app on your phone. Not only does the app allow you to see the inputs and outputs of the Delta 2 Max, but you can set a number of parameters of how you want your unit to work. For instance, although you can charge the unit through its AC power cord at 1800 watts, you can set the charge rate anywhere from 200 watts to 1800 watts in 100 watt increments. Charging at a slower rate is easier on your batteries over their lifetime. Having the ability to load new firmware can get rid of bugs, or add new features. I just did an update that changed the power switchover time from 30 ms to 20 ms. It’s still not quite as fast as a UPS, but it is now closer. More products/computers being powered with the Ecoflow while it is plugged into the AC wall outlet should be uninterrupted when the power fails. In any case, it has been improved free of charge.
The display on the Delta 2 Max is very clear and easy to read. It shows input and output loads like AC and solar, and DC loads including the cigar lighter socket, USB-A and USB-C sockets and the barrel plug sockets. Up to 2 extra 2048 watt external batteries can be added to give a total of 6144 watt hours for extra capacity.
The Delta 2 Max has run everything I have tried with it including an induction cooktop, a portable ice maker, a portable steam cleaner, a coffee machine, a 12 volt power source and numerous USB powered devices. When considering this power source, just be aware that it is not going to power your house. It will power most of the things in your house, but not all at once! If you are using, say, a 1500 watt device, it will likely run your battery down in a couple of hours. Be aware of power management, and what power requirements your devices need. If you do that, you should have a more pleasant user experience.
The Ecoflow Delta 2 Max came packaged with the Ecoflow 220 watt portable solar panels. Included was an adapter which hooked the solar panel’s MC-4 adapters with the Delta 2 Max’s XT60i connector. There are actually 2 XT60i inputs on the Delta 2 rated at 500 watts each totaling 1000 watts. In order to max out these inputs, you would require a more substantial setup than the included 220 watt panels. The panels look very well made, and come in a carry bag which doubles as a support mount to hold the panels directed towards the sun. It is actually 4 bifacial panels folded up and they weigh about 21 pounds. They aren’t as durable as an aluminum sided solid panel (no one’s portable solar panel assemblies are), but they are certainly more portable and can be taken with you while camping or off roading. They are not meant to be left outside 24/7 in my opinion. I have only had the opportunity to try the panels out once, but I was happy with their performance. It was mid October on a sunny day around 11:30 AM and it initially showed 192 watts going into the Delta 2 Max. It settled down a bit as the panels warmed up but still put out 188 watts for a few hours until the sun dropped lower in the sky. See photo….hard to read but it is at 191 watts. When a solar panel is rated, the panels are at 25C and under a light intensity of 1000 watts per square meter. In actual practice, the panels get hotter than 25C and the sun is often not at an ideal angle. There is moisture in the air which cuts down solar radiation, even though the sky looks blue. My experience was for these panels to put out 87% of rated power on an October day, which I consider to be very good. I would expect to have higher output on a day in June. The carry case which doubles as a panel support works, but is not ideal. I found it awkward to set up and not suitable for a windy area as a gust of wind can blow them over. Be advised that this set of panels will not be able to completely charge a dead Delta 2 Max by itself in a single day. You would need a perfect day and have to constantly move them perpendicular to the sun all day long and still fall short. Power output during the early and later parts of the solar day will have much less output than at noon when the sun is highest. Again, it’s just the way it is with any manufacturer’s solar panels.
At $2899 for the package, it is an expensive purchase. I would suggest getting it on sale. Ecoflow often has sales. Right now (Nov 17 2023) there is the same sale on as when I bought mine just over a month ago. They are presently selling it with a $900 discount, so at $1999, it’s a pretty good deal. Do your research with what you want it for, how much capacity you need and what other products are out there. I think you will find Ecoflow products compare very favorably to what else is presently on the market
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