EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, Fast Charging, Solar Generator(Solar Panel Optional) for Home Backup Power, Camping & RVs
I recently purchased the EcoFlow Delta 2 on a shockingly good deal I saw on Amazon and I must say, it’s nothing short of a game-changer! This portable power station has completely redefined the way I approach outdoor adventures, emergencies, and even daily power needs.
One of the standout features of the EcoFlow Delta 2 is its seamless compatibility with portable solar panels. That being said, I would have appreciated the inclusion of the standard MC4 connector adapter; had to purchase it separately. This gave me the ability to harness the power of the sun to charge the Delta while off the grid. The flexibility to charge using solar energy not only saves me money in the long run but also empowers me to go on extended trips without worrying about running out of power.
Speaking of power, the EcoFlow Delta 2 truly lives up to its name. With an impressive capacity, it effortlessly handles charging a multitude of devices simultaneously. From smartphones and laptops to power tools and even mini-fridges, the Delta 2’s array of output options ensures that no matter what the situation, I’m always connected and powered up. The fact that it maintains a stable and reliable power output is particularly reassuring, especially during crucial moments or in unexpected power outages.
The user-friendly interface and controls make operating the Delta 2 a breeze. The large, bright LCD screen provides real-time data on input and output wattage, battery level, and more. This keeps me informed about the system’s status, ensuring I can make the most of the available energy. Despite its robust power capabilities, it’s surprisingly portable – lightweight and easy to transport thanks to the built-in handle.
All in all, the EcoFlow Delta 2 has exceeded my expectations in every way. It’s definitely gonna make pre-games at the stadium this fall a LOT more enjoyable.
Rated 5 out of 5
YuenX –
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Rated 4 out of 5
DeltaPeng –
– pricey +seems to be best in market at plug and play, accepts a good voltage range
I was wavering back and forth on my solar setup, the goal being to be able to work more remotely with some light off gridding. Bought a couple solar panels, and wanted a battery generator
originally I bought 2x dokio 220w panels, but they would not charge on my original power station pecron s1500. That is the best bang for the buck, but it has stricter voltage requirements. I should have met them with my panels in series, but sadly it wouldn’t solar charge my pecron, for some reason. I have a basic dmm, which seemed to confirm I was in the right range, but still no go
I had also bought an ecoflow originally, but then wanted to refund it when I found the pecron. I cancelled the day/night of, but they still shipped it to me. Which is annoying in one sense, since I cancelled it that quickly, it should not have been sent, as it’s a hassle to return such a heavy item. I suspect they do it anyway for more sales, but conspiracy aside,
it kind of worked out, since the pecron would not accept my solar setup, and that was the point, I took the hit and just kept the ecoflow delta 2 1kw. On the plus side, it was more plug and play as I’d expect from the pricier/more luxury brand. But, if I hadn’t gotten it in, I probably would’ve opted for a different ecoflow model (knowing what I know now, I’d rather have a pecron 1500 for main storage, then a river pro 750kW for portability, and that’s the reasonable amount I can charge a casual day with my 45% efficient, 2x 220w dokio panels). Having all the plugs on one side is more convenient, it’s a bit annoying on this model to have dc in front, and ac in back, makes it more hassle than needed to charge a cell phone and power some ac device. It’s heavy, but i think batteries in general are such, and so the higher capacity, the heavier you can expect it to be.
in terms of actual storage, seems like it might be in the ~850-900?kwh range as a rough estimate. Each device seems to give less kwh than the actual number.
the app is nice, and it’s cool to be able to see the current charge percentage and solar input coming in. The numbers seem off sometimes though, like if I have ac and dc going, sometime it does not seem to accurately reflect watt usage.
the app could be a lot more useful/powerful though, here’s some suggestions: ecoflow app already can automatically alert you if battery drops 20%. It really could stand to have that value be set by user though. For example, I would want it to instead alert me at 10%, but I can’t adjust it. Additionally, it would be so, so very useful if the app would alert me whenever the solar input was less than x watts. My dokio’s at best give me about 90-100w, but sometimes one of them falls over, or shade hits it, and the solar input drops in half or to 0. The app would be so much better, if you could set alerts for that. Then I wouldn’t have to regularly be checking to see if my panels were good, but if it drops to 0W or say below 30W, or 50W, or whatever, if the app alerted my I could know when to adjust it.
Another feature I was assuming/ hoping for, but it appears no one really does it, would be what I call “solar passthrough”. I think this and pecron have regular “passthrough”, which is like, being able to plug into an ac outlet to charge battery + devices that are connected to it. To me at least, I think this is not all that useful, it’s akin to just buying a power strip. For me, I want “solar passthrough”, the ability to charge via solar, to firstly use the solar to power my devices, and then store away any extra. My idea is offgridding, so I want to be able to have solar panels setup, which charge a fridge + laptop, whilst storing extra in the battery. As is, you can only do one or the other, either be outputting power, or be charging. But that’s not all that useful for offgridding from say my car, I don’t want to spend double the time, expending energy or recharging. I want to power what I have, hopefully charge a bit, and then be able to move on. Choosing one or the other means I’m either just sitting around burning time while the thing charges, or I’m being productive/keeping my food cold at the cost of burning daylight / potential energy/recharge time while being productive
tbf, I don’t think anyone offers this atm. But that’s what I would want for casual offgridding / remote working situation I envision. I suppose the answer is probably having to have two power stations (that can solar charge), and just alternate using one while charging the other, which is non-ideal, as that means I can’t ever top off and really utilize my full storage capabilities. I suspect some of this is a technical issue, as sunlight comes in as DC, but fridge/ laptop would be AC. And maybe wearing down the batteries. If select batteries could be isolated, then perhaps half could be charged (via solar) while the other half which already has power, is being outputted. Not sure how easy it would to create that. But that was my original idea I had hoped for, but later found that in practice, it couldn’t be done. Hopefully one day though
Rated 5 out of 5
tinker319 –
First let me explain that I am a person who’s picky about quality I’m the guy that goes camping and builds most of his stuff because I’m not impressed with a lot of the products out there I make careful and thorough studies before I buy and use any product. After obtaining and using this product I find that I am well satisfied with it it does not only what it says it does there’s a few things to it that I did not expect that were absolutely fantastic. First the description of it is pretty accurate which is important since it’s not uncommon to find descriptions not accurate to the product. Second I like the sturdiness of the product they handles are well designed allow me to very easily pick up the product move it around where I needed to go without fear of them breaking off the general shape of it is is such that I feel I can move it anywhere and trust that it’s not going to fall over on me and potentially damage itself or anything plugged in. I’m also a little surprised at its weight I was expecting it to feel a little more heavy than it actually is but it’s very easy to move around to wherever I need it. There are more than ample sockets for you to plug just about anything you would really need into it I would like to see future Productions having more three prong AC sockets but as I don’t plan on having too many things plugged in at one time this isn’t a problem. The display is pretty fantastic very easy to read and understand without needing to reference the manual the manual does point out a few things that you might not have noticed that they have as an example each type of Outlet has a button that must be pressed to power the socket the display will tell you which sockets are powered on. In addition it also will tell you wattage going in for charging and wattage output during discharge One Note to pay attention two for AC Outlets there seems to be a minimum amount of wattage necessary before it registers something I hope will be fixed in the future, however even if you’re running an LED lamp which only uses about 5 or 6 Watts that will still run without any problem with the exception of using the power saving features as the device will believe there is no load upon it and will turn itself off after a Time, this can be fixed using the app. Speaking of the app I really like it I like that I can check the status of my charge at any time with the Bluetooth feature I have not used the Wi-Fi features but I expect that they would work similarly well. The information is presented in a very easy to read at a glance way though I think a few visual improvements could be made an example there is a graph that shows the change in wattage but it only goes a few seconds so it doesn’t really tell me anything that I could truly use to evaluate performance or identify problems. To conclude I am fairly impressed with how well this works I’ve had absolutely no problems charging or discharging. As soon as the weather around here dries up gets a little warmer I will be taking it on several outdoor excursions to areas without a connection to a power grid. One final note I would like to see in the future a version that is already waterproofed without needing to buy a separate jacket, which I suggest you buy if you’re going to use this Outdoors it makes no sense paying a lot of money and not protecting your investment. For all of this I would give it a 4.5 Star rating as I believe that you really got to be something to get five stars the last half a star I give them for their excellent customer service although I did not have any problems receiving the product or in his packaging it was not damaged came exactly as what was expected I found that when I purchased it it had gone down in price two days later on a sale and when I inquired of them they promised to give me the sale price for this where they could have easily said I’m sorry that was a limited sale and we’re unable to do it so for this I give them that extra little half star for having excellent service. I will also mention that not only did they respond within a few hours of me writing them they also shipped everything within a few hours of me making the sale. Overall I am thoroughly satisfied and highly recommend this product
I was reluctant to purchase this unit due to the price. I don’t often make purchases in this price range. But after being quoted 15k for a generac outdoor install, this is a far cheaper option to help deal with our power outages in California. And I also heard outdoor generators have problems as well and they have maintenance plans, etc. Nothanks. I researched all the different brands of solar/electric generators at length and decided on ecoflow, which is apparently the trendsetter other brands seem to follow as far as innovation. The next step was to decide which model. I didn’t want to go too small and regret it, or have to make a second purchase later to get a more capable generator. So I settled on the Delta 2. The sale price combined with the capability was as much as I could possibly afford at the time. So I pulled the trigger.
When it arrived, it was smaller than I thought, but that’s a good thing. I immediately plugged it in and it took off charging at over 1500 watts! Ecoflow has a patented XTREAM charge system on their new units. The fans turned on and it finished in less than an hour from 35% Under heavier loads or fast charging the fans will come on. Seems like there’s a quiet background computer fan sound, and a more serious load speed which is a little louder but expected and acceptable. Each output “section” has an on/off switch. If you have devices like phones or tablets on USB C, or regular USB plugged in, they will not charge until you turn on the on off switch for the front panel device outputs. Just a simple button press and a light which confirms. The devices light up and charge. This can also be done on the accompanying app. Turn off the section when not needed to help conserve battery. Same with the 6 110 plugs on the back for your household devices. There is an on/off button for that section as well. The readout on the front panel is bright and clear. And shows time remaining until charging is complete, then alternates to time remaining when outputting power. I charge the ecoflow during off peak hours when electricity is cheaper. Then during the day, I usually unplug the unit from the wall and run my entertainment center with it. During the daytime. My power consumption for a 55″ tv, a sound bar, and an Amazon fire stick is usually 79 watts. The display shows you in real time what you’re load is. And constantly calculated time remaining. I cannot run the cable box from the ecoflow because when I unplug it, it takes 30 milliseconds to convert to battery power. That is too long for the cable box and it restarts, Interrupting DVR recording and making my wife mad. So I have that on a smaller UPS(Uniterruptable power supply) backup with 0ms switchover speed for sensitive electronics. That’s also where I plug 2 routers because we have a critical work from home employee who needs a redundant connection to Xfinity and also a backup 5g T-Mobile router.
The app that is available on your phone to control the ecoflow works well. It does have updates and firmware updates. Functionality is added. It connects via Wi-Fi and Bluetooth, both incorporated into the ecoflow unit.
Also another aspect I like is the simple addition of solar power. Not just with the overpriced folding panels ecoflow sells. I didn’t buy those. I used a $68 100 watt panel from Amazon and it plugs right in and works fine. No muss no fuss. HELPFUL TIP- the ecoflow DOES NOT SHIP WITH THE SOLAR PLUG. Only if you buy the solar panels is it included. You CAN order the plug from ecoflow but it took over 2 weeks to receive. And ecoflow uses the SHOP app to track their shipments with DHL. Don’t recommend at all. Way too slow. Buy a generic adapter with the corresponding yellow plug on one end and the 2 solar connectors on the other from Amazon. Way faster. Also avoid eBay for solar supplies. I ordered extension cables and they ended getting lost from China and they took 3 weeks to arrive. Again, Amazon carries them. Go there. When you have the cabling, you just click the positive and negative cables into each other and you’re done. Mounts your panel somewhere. I just put mine on a fence. No azimuth, no elevation coordinates. Just flat on a fence. I get about 85 watts peak flow. Usually max output on any 100 watt panel is 90. And that’s calculating angles and making or buying the mounts. Do as you see fit. This ecoflow delta 2 will take 500 watts solar charge and so I will probably add 4 more 100 watt panels. You can buy one 500 watt panel, but they’re expensive and physically bigger. After you have solar connected, it shows you’re input wattage real time. And automatically uses it to charge even when using your appliances. My goal is to provide 500 watts input and disconnect the unit from the wall entirely, running my entertainment ‘off grid’.
Another mention is the ecoflow store online. When you buy a unit, it gives you ‘ecocoins’ for completing your online profile and registration of your unit. I immediately earned enough coins to get $10 off the purchase of the solar adapter from ecoflow. But that’s when I found out it was a week before they even bothered shipping it. Just stick to Amazon.
Bottom line I like the unit. It’s another source of real power during an outage. It’s not as big a step as installing a generac but the larger exoflows have optional home power integration features which are interesting. And they sell extra ‘batteries’ for the units which are nearly the same price but lack the screen and features of a main unit. Might as well just buy another main unit for the extra $100. At this point I would consider a sizeable ecoflow home backup system before a Tesla Powerball or a generac.
Unit is made in China.
Rated 5 out of 5
Kirke –
This is my first backup power supply I’ve ever bought and I’m very happy with it! It’s a great alternative to using a noisy petrol generator. I bought this one because my needs were the following: a. Something to have while camping that can run appliances and charge gear up, such as smartphones and/or cameras/gopro’s. I’ve tested this with my Blendtec (similar to a vitamix). And it worked awesome. I was able to run it full blast and it was only pulling about 600w or 1/4 of the total allowed by the unit. I was also able to run a projector, chromecast, speakers and a lamp for about 12 hours. When I checked, the Delta 2 still had 55% battery left. As for size and weight, I personally found it easy to manage. Smaller than a desktop computer and fairly light. I also purchased the Waterproof case for the Delta 2 which allows you to run the unit while inside the bag. There are flaps you open that allow the fans to pull air in and out. A real nice touch. The only complaints about the bag are: 1. There’s no handles or shoulder strap on the bag so it’s kind of awkward carrying it. 2. There’s only 1 pocket on top of the case and it doesn’t allow much to be put in there. It would of been nice to include 1 large pocket on the side that you could add a power strip, multiple charging cables, the 12v DC cable, and instruction manuals inside. My plan is to use this with an Electric Cooler. If you want to do the same, be aware that the Delta 2 gives an approx time of 16-32 hours for that. If it’s really hot, it might zap the battery in less than 24 hours. Hopefully the electric cooler you own has: a. a power supply of it’s own to use first before needing the Delta 2 and b. Your cooler offers Eco Mode which won’t pull power the whole time. If it has both of those, I imagine you could camp for a few days and have power the whole time if you’re not using the Delta 2 for much else. Otherwise you should get a bigger unit like the EcoFlow Pro or Max. My plan is to get the 2nd backup battery. I’m eager to see the new upcoming Ecoflow Electric Cooler that was just showcased at the CES show. It looks really nice and am looking forward to using both the Delta 2 and the Glacier cooler combined! One odd thing about the Glacier is they said it only works with Solar or AC. Didn’t appear there was a DC option. As for the Delta 2, you get AC, DC for your car and the solar cable connection cables. You just need to purchase the solar panels. I might try that down the road. I only go camping for a few days. Also, the mobile application works great with the unit. Of note: At first I was confused using the application. I was able to connect via Wifi and when I wanted to try bluetooth, I couldn’t get it to work. The reason for that is because the unit will use Wifi if it’s available. So if you’re at your house and want to force bluetooth to work, you need to sever the wifi connection completely so the only option for your phone and delta 2 will be bluetooth at that point. Once I figured that out, BT worked perfectly. There is no need to go into ‘connected devices’ on your phone and add the Delta 2. It’s fancy enough that it just works automatically. So overall I’m pretty happy. This is offering me enough backup power at the moment. I didn’t buy this to power my house for 24 hours when the power goes out. If you want that, you should look at the Ecoflow Pro. It has 4x the power than the Delta 2. The 3 stars for Noise is a tad unfair. It shouldn’t surprise you that this has a loud fan when charging 1850w in 90 minutes while plugged into the wall. That’s 1200w of input. But guess what? In the mobile app you can lower the intake of power when charging. If you lower it all the way down to 200w intake, it will be as quiet as a desktop computer. I was able to charge the unit 55% over the course of 5 hours with it on 200w. If you go with 800w the fan will kick on but it won’t be as loud as the fan on High when intaking 1200w. So it just depends. Do you really need your Delta 2 charged up in 90 minutes and it’s completely dead? Then you’ll have to go with the loud fan. But you can hopefully just plug it into a room that no one is in, like your garage. I’ve found I’m fine with charging at the lowest 200w intake and just letting it take 10-12 hours to charge. But everyone is different. Have fun!
Rated 4 out of 5
Kyler Christian –
I use this primarily as a battery for my truck camper as well as a nice backup option to power my modem/router when the power is out.
Pros: Great size, capacity and power. You will have no problems running a 12v fridge and other small appliances. For my uses, it does my fridge, water pump, keeps all my electronics topped off and powers lights. This works well for up to a week just charging off the alternator while driving (although it can be picky). If it’s any longer than that, or particularly hot, I add a foldable 100w solar panel which will add about 50% of the capacity with a good 5 hours of sun.
The app interface is great, and allows you to dial in inputs and outputs, turn them on and off, set timers etc. Very nice interface.
AC CHARGING IS INSANELY FAST. During a recent trip with a lot of 100 degree whether we managed to drain it after about 6 days. We stopped in to a coffee shop for an hour and cranked the AC input up to 800 watts. This returned a good portion of power back and alleviated any power concerns we had for the rest of the trip. Coming from a Jackery 500 this is a huge boon.
The tall narrow profile and flat top makes packing around it much easier.
The 2 DC 5521 ports are almost a requirement for me and most power stations are moving away from these for some reason (at least in this mid range price point)
Cons: The fans can be loud but it is somewhat controllable with inputs/outputs
The input ports have a plastic flap that I will most certainly break at some point and it doesn’t seem removeable.
It seems to have some kind of bug or pickiness with weak DC in whole doing AC out. Watching the app the input would bounce from about 15w to 60w and it didn’t seem to charge as fast.
Overall pretty pleased 4.5 stars.
Rated 4 out of 5
Mike –
Bought this on black Friday in hopes it would help us during our winter blackouts in Texas. Mainly wanted it to charge phones/tablets and keep our T-Mobile Gateway up and running to keep tabs on what’s happening in the area. So, nothing intense.
When I received the power unit, I turned it on and plugged it in to fully charge. It kicked on some loud fans immediate upon plugging it in. I went into the app and turned down the amount of watts going into the power unit from the wall. That immediately toned down the fans to a more tolerable level, about the sound of a desktop computer fan. The power unit charged up fine, taking very little time even though set to the average setting for wall charging.
The app worked great, as long as I was using it in Bluetooth mode only on my Samsung 22 Ultra. If I tried to connect to it by WiFi, it would not work. The app would act like it connected to my router, but would not allow me to see any data or make any changes to the power station. This was concerning since when I was connected via Bluetooth it said it needed a firmware update. Well, you can’t update the firmware on Bluetooth. I tried using my Tab S8 Ultra to see if this was just an issue with the phone I had or perhaps an Android App issue. The tablet ended up with the same issues. So, I tried my wife’s Iphone 12. It connected to the bluetooth and wifi with no problems. I was able to update the firmware on the power station and all was good on that end. However, the update did nothing to help my Android phones connect.
I reached out to the company and explained the issue. After a few back and forth emails, they wanted me to install a version of the app where they can gather more data from my phone and the connection issues within the app. I figured I’d give that a shot. I let them know it was installed and I tried the connection a couple of times with the same results as before. They thanked me and said they’d get back to me after a while so their techs can look into the issue. Well, a week or so goes by and they reach back out. They told me there wasn’t enough data for them to use and asked if I could try the connection to wifi a few more times. So, that morning I tried to connect about 6 or 7 more times, each time having the same issue. Once it would fail, I’d close the app out completely and start over. I informed them via email, they replied saying thank you and I’ve not heard back since.
That all being said, I’m unsure of what the issue is, if it’s just a Samsung product issue or Android in general. I’ve not heard back and I’m not sure if I will. This is the one time I’m thankful someone in our house uses an IPhone (not hating, just an Android guy). Otherwise, the app is very informative, allowing you to switch on the different ports (AC, USB, DC). It gives you nice animation showing power in vs. power out. You can change the amount of watts going into the unit from the wall charger. I appreciate that there is no large power brick on the outside by the way. Every time I get a notification in their app regarding some sale or anything else that leads to their webpage, it comes back with an error saying it couldn’t load the page. Again, not sure if it’s just a glitch in the app for android or what, but it’s still annoying. Note, before posting this I wanted to verify this wifi connection issue was still ongoing. In doing so, I opened the app and was greeted with the unit connected via wifi. First time that’s ever worked. I looked at my phone and realized it was not on my home wifi network. So, if both devices are not on the same wifi, it would show the power station data and allow me to check the firmware status. However, as soon as I connected my phone to the home wifi network, the same the power station was connected to, it would not show any data for the power station in the app. My wife’s Iphone could be connected to the same wifi and was able to connect to the power station still. So, again, not sure what’s going on with that.
Now that that’s out of the way, on to the solar panels. I unpacked those and got them connected a day or so after I received the power station and drained it down using my computer and phone off of it. I took the panels outside in the backyard and set them up on the ground. I had to find some carabiner clips as the panels do not come with any (at least mine did not). Once I had those, I was able to prop up the panels using the case they come in and had it angled towards the sun. I don’t know the angle they are set to, but it worked. I put the power station behind the panel on the case to the panel. Essentially what happens is the case opens in a V shape (clam style) and uses the opening to secure to the bottom and top of the panel in the middle of the panel. This keeps the panel propped up and somewhat sturdy. Add the power station onto the case and things sit pretty sturdy. The panels are bifacial, so you get a little sun off the backside too. I’m no expert or have any testing tools to determine how well this style of panel works, but I was able to get about 170 watts on a pretty sunny December day. I didn’t have a lot of day time to work with before shadows started passing over the panels, but the system charged about 30% before I had to break it down. I plan to get some longer cable and make it where I can keep the panels mounted to the fence and the power station safe inside the house.
Overall, the system is great besides the app issue. I haven’t used it for very long, but the ports that are available and size of the system seems adequate for our needs at the moment. If I ever hit the lottery, I’d like to acquire one of their whole home type systems to use and reduce our bills. But, that’s a pipe dream for another time.
Hope this short review shines some light on this unit for anyone interested. I would recommend it, just know their may be a glitch in the android app. Or, I could just be lucky that way.
Rated 5 out of 5
TechGuy –
I read a lot of reviews and watched many videos before buying the Ecoflow Delta2. My main use for this Delta2 is for overnight camping trips and use as a back-up power in case of black-out conditions to run some equipment like Refrigerator and be able to heat food using the microwave. Delta2 doesn’t have the battery capacity like Delta Pro but with a good solar panel it can definitely come handy when required. One can always add an additional battery that again works seamlessly to extend the battery capacity or buy the Ecoflow Smart Generator.
I was debating between Bluetti EB70s and Ecofow Delta2. The reason I bought Delta 2 over Bluetti was the battery capacity. Delta 2 provides 1024WH as compared to the 716WH from the EB70s. Delta 2 met the power requirements that I was looking for. I could not find any offering by Bluetti in the range of 1000WH capacity. Delta 2 was of course more expensive than Bluetti but the surge power (also called X-BOOST by Ecoflow) is really high. So running a microwave for a short time or a coffee machine at a campsite or picnic is not an issue at all. I bought a combo pack (Delta 2 and solar panel). More about this combo later in the review. The other reason was the 5 year warranty that comes with the Ecoflow Delta2 vs 2 years for Bluetti. Some models from Bluetti do offer 4 years but were expensive for my use.
Below are a few things I like about Ecoflow Delta2 after using it for sometime.
1) Construction – This is a solid built product. The bottom edges have these rubber bumpers for extra protection. The form factor is designed well to fit in the car. I hope the handles were not protruding out as they are now and were more integrated into the main box. The box is strong and one can easily put heavy items on the top without any issues. With the LFP battery and 3000 battery cycles, the Delta 2 will last forever.
2) Display – It’s big and clear. Very easy to read even on a bright day. All the connections that are turned on are shown on the display even when a load is not connected but for USB only when a load is connected, the icon is displayed. Not sure why only the USB icon behaves like that. Not an issue at all but just wondering why a different behavior as compared to other connections.
3) App and Connectivity – The phone app works great and it’s very easy to use. There are so many options that you can set via the app. Connecting the Delta 2 to the app was a breeze. It connects to WiFi without any issue and also to bluetooth. The app shows correct data 99.9% of the time. Once in a while you have to refresh (close/open) the app to get the latest data. It is very rare but I did notice it. When the WiFi is available, the Delta 2 connects via WiFi. If there is no WiFi connection, it automatically switches to Bluetooth connection. The connection is just seamless and you are always connected to the Delta 2.
4) Charging – Delta 2 can charge at a whopping 1200W to be ready from 0% to 100% in about just 80 minutes. The fans do kick-in to dissipate all the heat generated during this fast charging. I personally charge the unit at 500 W with fan running but much less noisier and may be better for the battery life. The solar charging can go up to 500 W. I don’t have enough solar panels to check that max limit but this can be a really handy feature during a blackout conditions or with limited hours of sun during camping. One can charge the battery before leaving camping or any other work. Charge while driving from the 12V DC outlet in the car (Also known as the Cigarette lighter port) and the battery will be 100% when you reach your camp/work site.
5) Output Connections – There are more than enough connections that one can use, in my view. With a massive 1800 W peak capacity and 2700 W of surge capacity, I think you can run almost any home appliance with this Delta 2. The provided ports like USB A, USB C, Power Outlets and 12 V (Car type) are good to power any device you may have.
Now coming to the combo I got. I bought the combo of Delta 2 and Solar Panels that were rigid. I was not happy with the size and format of rigid panels so I reached the Ecoflow support team. Even though I made that choice and now wanted to get portable panels, the Ecoflow team worked with me. The support team was amazing with quick responses and answering all the questions I had. It was good to see Ecoflow believes in good customer service that still cares about their customers. One of the best customer service teams I have worked with.
One option that I would like Ecoflow to add will be to set the discharging and charging percentages even when connected to the power outlet. I would like to connect a solar panel for charging and connect my garage refrigerator to Delta 2 and use the battery power. If the battery falls below a certain level (let’s say 30%) it can charge via the power outlet, else the refrigerator can keep running via the solar power. This option is provided when you connect a Ecoflow smart generator to Delta 2 but not when connected to a power outlet. I hope Ecoflow will implement this feature in the future software update.
t2fsu1 –
I recently purchased the EcoFlow Delta 2 on a shockingly good deal I saw on Amazon and I must say, it’s nothing short of a game-changer! This portable power station has completely redefined the way I approach outdoor adventures, emergencies, and even daily power needs.
One of the standout features of the EcoFlow Delta 2 is its seamless compatibility with portable solar panels. That being said, I would have appreciated the inclusion of the standard MC4 connector adapter; had to purchase it separately. This gave me the ability to harness the power of the sun to charge the Delta while off the grid. The flexibility to charge using solar energy not only saves me money in the long run but also empowers me to go on extended trips without worrying about running out of power.
Speaking of power, the EcoFlow Delta 2 truly lives up to its name. With an impressive capacity, it effortlessly handles charging a multitude of devices simultaneously. From smartphones and laptops to power tools and even mini-fridges, the Delta 2’s array of output options ensures that no matter what the situation, I’m always connected and powered up. The fact that it maintains a stable and reliable power output is particularly reassuring, especially during crucial moments or in unexpected power outages.
The user-friendly interface and controls make operating the Delta 2 a breeze. The large, bright LCD screen provides real-time data on input and output wattage, battery level, and more. This keeps me informed about the system’s status, ensuring I can make the most of the available energy.
Despite its robust power capabilities, it’s surprisingly portable – lightweight and easy to transport thanks to the built-in handle.
All in all, the EcoFlow Delta 2 has exceeded my expectations in every way. It’s definitely gonna make pre-games at the stadium this fall a LOT more enjoyable.
YuenX –
DeltaPeng –
– pricey
+seems to be best in market at plug and play, accepts a good voltage range
I was wavering back and forth on my solar setup, the goal being to be able to work more remotely with some light off gridding. Bought a couple solar panels, and wanted a battery generator
originally I bought 2x dokio 220w panels, but they would not charge on my original power station pecron s1500. That is the best bang for the buck, but it has stricter voltage requirements. I should have met them with my panels in series, but sadly it wouldn’t solar charge my pecron, for some reason. I have a basic dmm, which seemed to confirm I was in the right range, but still no go
I had also bought an ecoflow originally, but then wanted to refund it when I found the pecron. I cancelled the day/night of, but they still shipped it to me. Which is annoying in one sense, since I cancelled it that quickly, it should not have been sent, as it’s a hassle to return such a heavy item. I suspect they do it anyway for more sales, but conspiracy aside,
it kind of worked out, since the pecron would not accept my solar setup, and that was the point, I took the hit and just kept the ecoflow delta 2 1kw. On the plus side, it was more plug and play as I’d expect from the pricier/more luxury brand. But, if I hadn’t gotten it in, I probably would’ve opted for a different ecoflow model (knowing what I know now, I’d rather have a pecron 1500 for main storage, then a river pro 750kW for portability, and that’s the reasonable amount I can charge a casual day with my 45% efficient, 2x 220w dokio panels). Having all the plugs on one side is more convenient, it’s a bit annoying on this model to have dc in front, and ac in back, makes it more hassle than needed to charge a cell phone and power some ac device. It’s heavy, but i think batteries in general are such, and so the higher capacity, the heavier you can expect it to be.
in terms of actual storage, seems like it might be in the ~850-900?kwh range as a rough estimate. Each device seems to give less kwh than the actual number.
the app is nice, and it’s cool to be able to see the current charge percentage and solar input coming in. The numbers seem off sometimes though, like if I have ac and dc going, sometime it does not seem to accurately reflect watt usage.
the app could be a lot more useful/powerful though, here’s some suggestions:
ecoflow app already can automatically alert you if battery drops 20%. It really could stand to have that value be set by user though. For example, I would want it to instead alert me at 10%, but I can’t adjust it. Additionally, it would be so, so very useful if the app would alert me whenever the solar input was less than x watts. My dokio’s at best give me about 90-100w, but sometimes one of them falls over, or shade hits it, and the solar input drops in half or to 0. The app would be so much better, if you could set alerts for that. Then I wouldn’t have to regularly be checking to see if my panels were good, but if it drops to 0W or say below 30W, or 50W, or whatever, if the app alerted my I could know when to adjust it.
Another feature I was assuming/ hoping for, but it appears no one really does it, would be what I call “solar passthrough”. I think this and pecron have regular “passthrough”, which is like, being able to plug into an ac outlet to charge battery + devices that are connected to it. To me at least, I think this is not all that useful, it’s akin to just buying a power strip. For me, I want “solar passthrough”, the ability to charge via solar, to firstly use the solar to power my devices, and then store away any extra. My idea is offgridding, so I want to be able to have solar panels setup, which charge a fridge + laptop, whilst storing extra in the battery. As is, you can only do one or the other, either be outputting power, or be charging. But that’s not all that useful for offgridding from say my car, I don’t want to spend double the time, expending energy or recharging. I want to power what I have, hopefully charge a bit, and then be able to move on. Choosing one or the other means I’m either just sitting around burning time while the thing charges, or I’m being productive/keeping my food cold at the cost of burning daylight / potential energy/recharge time while being productive
tbf, I don’t think anyone offers this atm. But that’s what I would want for casual offgridding / remote working situation I envision. I suppose the answer is probably having to have two power stations (that can solar charge), and just alternate using one while charging the other, which is non-ideal, as that means I can’t ever top off and really utilize my full storage capabilities. I suspect some of this is a technical issue, as sunlight comes in as DC, but fridge/ laptop would be AC. And maybe wearing down the batteries. If select batteries could be isolated, then perhaps half could be charged (via solar) while the other half which already has power, is being outputted. Not sure how easy it would to create that. But that was my original idea I had hoped for, but later found that in practice, it couldn’t be done. Hopefully one day though
tinker319 –
First let me explain that I am a person who’s picky about quality I’m the guy that goes camping and builds most of his stuff because I’m not impressed with a lot of the products out there I make careful and thorough studies before I buy and use any product. After obtaining and using this product I find that I am well satisfied with it it does not only what it says it does there’s a few things to it that I did not expect that were absolutely fantastic. First the description of it is pretty accurate which is important since it’s not uncommon to find descriptions not accurate to the product. Second I like the sturdiness of the product they handles are well designed allow me to very easily pick up the product move it around where I needed to go without fear of them breaking off the general shape of it is is such that I feel I can move it anywhere and trust that it’s not going to fall over on me and potentially damage itself or anything plugged in. I’m also a little surprised at its weight I was expecting it to feel a little more heavy than it actually is but it’s very easy to move around to wherever I need it. There are more than ample sockets for you to plug just about anything you would really need into it I would like to see future Productions having more three prong AC sockets but as I don’t plan on having too many things plugged in at one time this isn’t a problem. The display is pretty fantastic very easy to read and understand without needing to reference the manual the manual does point out a few things that you might not have noticed that they have as an example each type of Outlet has a button that must be pressed to power the socket the display will tell you which sockets are powered on. In addition it also will tell you wattage going in for charging and wattage output during discharge One Note to pay attention two for AC Outlets there seems to be a minimum amount of wattage necessary before it registers something I hope will be fixed in the future, however even if you’re running an LED lamp which only uses about 5 or 6 Watts that will still run without any problem with the exception of using the power saving features as the device will believe there is no load upon it and will turn itself off after a Time, this can be fixed using the app. Speaking of the app I really like it I like that I can check the status of my charge at any time with the Bluetooth feature I have not used the Wi-Fi features but I expect that they would work similarly well. The information is presented in a very easy to read at a glance way though I think a few visual improvements could be made an example there is a graph that shows the change in wattage but it only goes a few seconds so it doesn’t really tell me anything that I could truly use to evaluate performance or identify problems. To conclude I am fairly impressed with how well this works I’ve had absolutely no problems charging or discharging. As soon as the weather around here dries up gets a little warmer I will be taking it on several outdoor excursions to areas without a connection to a power grid. One final note I would like to see in the future a version that is already waterproofed without needing to buy a separate jacket, which I suggest you buy if you’re going to use this Outdoors it makes no sense paying a lot of money and not protecting your investment. For all of this I would give it a 4.5 Star rating as I believe that you really got to be something to get five stars the last half a star I give them for their excellent customer service although I did not have any problems receiving the product or in his packaging it was not damaged came exactly as what was expected I found that when I purchased it it had gone down in price two days later on a sale and when I inquired of them they promised to give me the sale price for this where they could have easily said I’m sorry that was a limited sale and we’re unable to do it so for this I give them that extra little half star for having excellent service. I will also mention that not only did they respond within a few hours of me writing them they also shipped everything within a few hours of me making the sale. Overall I am thoroughly satisfied and highly recommend this product
pulsev2<span class="a-icon a-profile-verified-badge"><span class="a-profile-verified-text"> –
I was reluctant to purchase this unit due to the price. I don’t often make purchases in this price range. But after being quoted 15k for a generac outdoor install, this is a far cheaper option to help deal with our power outages in California. And I also heard outdoor generators have problems as well and they have maintenance plans, etc. Nothanks.
I researched all the different brands of solar/electric generators at length and decided on ecoflow, which is apparently the trendsetter other brands seem to follow as far as innovation. The next step was to decide which model. I didn’t want to go too small and regret it, or have to make a second purchase later to get a more capable generator. So I settled on the Delta 2. The sale price combined with the capability was as much as I could possibly afford at the time. So I pulled the trigger.
When it arrived, it was smaller than I thought, but that’s a good thing. I immediately plugged it in and it took off charging at over 1500 watts! Ecoflow has a patented XTREAM charge system on their new units. The fans turned on and it finished in less than an hour from 35% Under heavier loads or fast charging the fans will come on. Seems like there’s a quiet background computer fan sound, and a more serious load speed which is a little louder but expected and acceptable.
Each output “section” has an on/off switch. If you have devices like phones or tablets on USB C, or regular USB plugged in, they will not charge until you turn on the on off switch for the front panel device outputs. Just a simple button press and a light which confirms. The devices light up and charge. This can also be done on the accompanying app. Turn off the section when not needed to help conserve battery.
Same with the 6 110 plugs on the back for your household devices. There is an on/off button for that section as well.
The readout on the front panel is bright and clear. And shows time remaining until charging is complete, then alternates to time remaining when outputting power.
I charge the ecoflow during off peak hours when electricity is cheaper. Then during the day, I usually unplug the unit from the wall and run my entertainment center with it. During the daytime. My power consumption for a 55″ tv, a sound bar, and an Amazon fire stick is usually 79 watts. The display shows you in real time what you’re load is. And constantly calculated time remaining. I cannot run the cable box from the ecoflow because when I unplug it, it takes 30 milliseconds to convert to battery power. That is too long for the cable box and it restarts, Interrupting DVR recording and making my wife mad. So I have that on a smaller UPS(Uniterruptable power supply) backup with 0ms switchover speed for sensitive electronics. That’s also where I plug 2 routers because we have a critical work from home employee who needs a redundant connection to Xfinity and also a backup 5g T-Mobile router.
The app that is available on your phone to control the ecoflow works well. It does have updates and firmware updates. Functionality is added. It connects via Wi-Fi and Bluetooth, both incorporated into the ecoflow unit.
Also another aspect I like is the simple addition of solar power. Not just with the overpriced folding panels ecoflow sells. I didn’t buy those. I used a $68 100 watt panel from Amazon and it plugs right in and works fine. No muss no fuss. HELPFUL TIP- the ecoflow DOES NOT SHIP WITH THE SOLAR PLUG. Only if you buy the solar panels is it included. You CAN order the plug from ecoflow but it took over 2 weeks to receive. And ecoflow uses the SHOP app to track their shipments with DHL. Don’t recommend at all. Way too slow. Buy a generic adapter with the corresponding yellow plug on one end and the 2 solar connectors on the other from Amazon. Way faster. Also avoid eBay for solar supplies. I ordered extension cables and they ended getting lost from China and they took 3 weeks to arrive. Again, Amazon carries them. Go there.
When you have the cabling, you just click the positive and negative cables into each other and you’re done. Mounts your panel somewhere. I just put mine on a fence. No azimuth, no elevation coordinates. Just flat on a fence. I get about 85 watts peak flow. Usually max output on any 100 watt panel is 90. And that’s calculating angles and making or buying the mounts. Do as you see fit. This ecoflow delta 2 will take 500 watts solar charge and so I will probably add 4 more 100 watt panels. You can buy one 500 watt panel, but they’re expensive and physically bigger.
After you have solar connected, it shows you’re input wattage real time. And automatically uses it to charge even when using your appliances. My goal is to provide 500 watts input and disconnect the unit from the wall entirely, running my entertainment ‘off grid’.
Another mention is the ecoflow store online. When you buy a unit, it gives you ‘ecocoins’ for completing your online profile and registration of your unit. I immediately earned enough coins to get $10 off the purchase of the solar adapter from ecoflow. But that’s when I found out it was a week before they even bothered shipping it. Just stick to Amazon.
Bottom line I like the unit. It’s another source of real power during an outage. It’s not as big a step as installing a generac but the larger exoflows have optional home power integration features which are interesting. And they sell extra ‘batteries’ for the units which are nearly the same price but lack the screen and features of a main unit. Might as well just buy another main unit for the extra $100. At this point I would consider a sizeable ecoflow home backup system before a Tesla Powerball or a generac.
Unit is made in China.
Kirke –
This is my first backup power supply I’ve ever bought and I’m very happy with it! It’s a great alternative to using a noisy petrol generator. I bought this one because my needs were the following: a. Something to have while camping that can run appliances and charge gear up, such as smartphones and/or cameras/gopro’s. I’ve tested this with my Blendtec (similar to a vitamix). And it worked awesome. I was able to run it full blast and it was only pulling about 600w or 1/4 of the total allowed by the unit. I was also able to run a projector, chromecast, speakers and a lamp for about 12 hours. When I checked, the Delta 2 still had 55% battery left. As for size and weight, I personally found it easy to manage. Smaller than a desktop computer and fairly light. I also purchased the Waterproof case for the Delta 2 which allows you to run the unit while inside the bag. There are flaps you open that allow the fans to pull air in and out. A real nice touch. The only complaints about the bag are: 1. There’s no handles or shoulder strap on the bag so it’s kind of awkward carrying it. 2. There’s only 1 pocket on top of the case and it doesn’t allow much to be put in there. It would of been nice to include 1 large pocket on the side that you could add a power strip, multiple charging cables, the 12v DC cable, and instruction manuals inside. My plan is to use this with an Electric Cooler. If you want to do the same, be aware that the Delta 2 gives an approx time of 16-32 hours for that. If it’s really hot, it might zap the battery in less than 24 hours. Hopefully the electric cooler you own has: a. a power supply of it’s own to use first before needing the Delta 2 and b. Your cooler offers Eco Mode which won’t pull power the whole time. If it has both of those, I imagine you could camp for a few days and have power the whole time if you’re not using the Delta 2 for much else. Otherwise you should get a bigger unit like the EcoFlow Pro or Max. My plan is to get the 2nd backup battery. I’m eager to see the new upcoming Ecoflow Electric Cooler that was just showcased at the CES show. It looks really nice and am looking forward to using both the Delta 2 and the Glacier cooler combined! One odd thing about the Glacier is they said it only works with Solar or AC. Didn’t appear there was a DC option. As for the Delta 2, you get AC, DC for your car and the solar cable connection cables. You just need to purchase the solar panels. I might try that down the road. I only go camping for a few days. Also, the mobile application works great with the unit. Of note: At first I was confused using the application. I was able to connect via Wifi and when I wanted to try bluetooth, I couldn’t get it to work. The reason for that is because the unit will use Wifi if it’s available. So if you’re at your house and want to force bluetooth to work, you need to sever the wifi connection completely so the only option for your phone and delta 2 will be bluetooth at that point. Once I figured that out, BT worked perfectly. There is no need to go into ‘connected devices’ on your phone and add the Delta 2. It’s fancy enough that it just works automatically. So overall I’m pretty happy. This is offering me enough backup power at the moment. I didn’t buy this to power my house for 24 hours when the power goes out. If you want that, you should look at the Ecoflow Pro. It has 4x the power than the Delta 2. The 3 stars for Noise is a tad unfair. It shouldn’t surprise you that this has a loud fan when charging 1850w in 90 minutes while plugged into the wall. That’s 1200w of input. But guess what? In the mobile app you can lower the intake of power when charging. If you lower it all the way down to 200w intake, it will be as quiet as a desktop computer. I was able to charge the unit 55% over the course of 5 hours with it on 200w. If you go with 800w the fan will kick on but it won’t be as loud as the fan on High when intaking 1200w. So it just depends. Do you really need your Delta 2 charged up in 90 minutes and it’s completely dead? Then you’ll have to go with the loud fan. But you can hopefully just plug it into a room that no one is in, like your garage. I’ve found I’m fine with charging at the lowest 200w intake and just letting it take 10-12 hours to charge. But everyone is different. Have fun!
Kyler Christian –
I use this primarily as a battery for my truck camper as well as a nice backup option to power my modem/router when the power is out.
Pros:
Great size, capacity and power. You will have no problems running a 12v fridge and other small appliances. For my uses, it does my fridge, water pump, keeps all my electronics topped off and powers lights. This works well for up to a week just charging off the alternator while driving (although it can be picky). If it’s any longer than that, or particularly hot, I add a foldable 100w solar panel which will add about 50% of the capacity with a good 5 hours of sun.
The app interface is great, and allows you to dial in inputs and outputs, turn them on and off, set timers etc. Very nice interface.
AC CHARGING IS INSANELY FAST. During a recent trip with a lot of 100 degree whether we managed to drain it after about 6 days. We stopped in to a coffee shop for an hour and cranked the AC input up to 800 watts. This returned a good portion of power back and alleviated any power concerns we had for the rest of the trip. Coming from a Jackery 500 this is a huge boon.
The tall narrow profile and flat top makes packing around it much easier.
The 2 DC 5521 ports are almost a requirement for me and most power stations are moving away from these for some reason (at least in this mid range price point)
Cons:
The fans can be loud but it is somewhat controllable with inputs/outputs
The input ports have a plastic flap that I will most certainly break at some point and it doesn’t seem removeable.
It seems to have some kind of bug or pickiness with weak DC in whole doing AC out. Watching the app the input would bounce from about 15w to 60w and it didn’t seem to charge as fast.
Overall pretty pleased 4.5 stars.
Mike –
Bought this on black Friday in hopes it would help us during our winter blackouts in Texas. Mainly wanted it to charge phones/tablets and keep our T-Mobile Gateway up and running to keep tabs on what’s happening in the area. So, nothing intense.
When I received the power unit, I turned it on and plugged it in to fully charge. It kicked on some loud fans immediate upon plugging it in. I went into the app and turned down the amount of watts going into the power unit from the wall. That immediately toned down the fans to a more tolerable level, about the sound of a desktop computer fan. The power unit charged up fine, taking very little time even though set to the average setting for wall charging.
The app worked great, as long as I was using it in Bluetooth mode only on my Samsung 22 Ultra. If I tried to connect to it by WiFi, it would not work. The app would act like it connected to my router, but would not allow me to see any data or make any changes to the power station. This was concerning since when I was connected via Bluetooth it said it needed a firmware update. Well, you can’t update the firmware on Bluetooth. I tried using my Tab S8 Ultra to see if this was just an issue with the phone I had or perhaps an Android App issue. The tablet ended up with the same issues. So, I tried my wife’s Iphone 12. It connected to the bluetooth and wifi with no problems. I was able to update the firmware on the power station and all was good on that end. However, the update did nothing to help my Android phones connect.
I reached out to the company and explained the issue. After a few back and forth emails, they wanted me to install a version of the app where they can gather more data from my phone and the connection issues within the app. I figured I’d give that a shot. I let them know it was installed and I tried the connection a couple of times with the same results as before. They thanked me and said they’d get back to me after a while so their techs can look into the issue. Well, a week or so goes by and they reach back out. They told me there wasn’t enough data for them to use and asked if I could try the connection to wifi a few more times. So, that morning I tried to connect about 6 or 7 more times, each time having the same issue. Once it would fail, I’d close the app out completely and start over. I informed them via email, they replied saying thank you and I’ve not heard back since.
That all being said, I’m unsure of what the issue is, if it’s just a Samsung product issue or Android in general. I’ve not heard back and I’m not sure if I will. This is the one time I’m thankful someone in our house uses an IPhone (not hating, just an Android guy). Otherwise, the app is very informative, allowing you to switch on the different ports (AC, USB, DC). It gives you nice animation showing power in vs. power out. You can change the amount of watts going into the unit from the wall charger. I appreciate that there is no large power brick on the outside by the way. Every time I get a notification in their app regarding some sale or anything else that leads to their webpage, it comes back with an error saying it couldn’t load the page. Again, not sure if it’s just a glitch in the app for android or what, but it’s still annoying. Note, before posting this I wanted to verify this wifi connection issue was still ongoing. In doing so, I opened the app and was greeted with the unit connected via wifi. First time that’s ever worked. I looked at my phone and realized it was not on my home wifi network. So, if both devices are not on the same wifi, it would show the power station data and allow me to check the firmware status. However, as soon as I connected my phone to the home wifi network, the same the power station was connected to, it would not show any data for the power station in the app. My wife’s Iphone could be connected to the same wifi and was able to connect to the power station still. So, again, not sure what’s going on with that.
Now that that’s out of the way, on to the solar panels. I unpacked those and got them connected a day or so after I received the power station and drained it down using my computer and phone off of it. I took the panels outside in the backyard and set them up on the ground. I had to find some carabiner clips as the panels do not come with any (at least mine did not). Once I had those, I was able to prop up the panels using the case they come in and had it angled towards the sun. I don’t know the angle they are set to, but it worked. I put the power station behind the panel on the case to the panel. Essentially what happens is the case opens in a V shape (clam style) and uses the opening to secure to the bottom and top of the panel in the middle of the panel. This keeps the panel propped up and somewhat sturdy. Add the power station onto the case and things sit pretty sturdy. The panels are bifacial, so you get a little sun off the backside too. I’m no expert or have any testing tools to determine how well this style of panel works, but I was able to get about 170 watts on a pretty sunny December day. I didn’t have a lot of day time to work with before shadows started passing over the panels, but the system charged about 30% before I had to break it down. I plan to get some longer cable and make it where I can keep the panels mounted to the fence and the power station safe inside the house.
Overall, the system is great besides the app issue. I haven’t used it for very long, but the ports that are available and size of the system seems adequate for our needs at the moment. If I ever hit the lottery, I’d like to acquire one of their whole home type systems to use and reduce our bills. But, that’s a pipe dream for another time.
Hope this short review shines some light on this unit for anyone interested. I would recommend it, just know their may be a glitch in the android app. Or, I could just be lucky that way.
TechGuy –
I read a lot of reviews and watched many videos before buying the Ecoflow Delta2.
My main use for this Delta2 is for overnight camping trips and use as a back-up power in case of black-out conditions to run some equipment like Refrigerator and be able to heat food using the microwave.
Delta2 doesn’t have the battery capacity like Delta Pro but with a good solar panel it can definitely come handy when required. One can always add an additional battery that again works seamlessly to extend the battery capacity or buy the Ecoflow Smart Generator.
I was debating between Bluetti EB70s and Ecofow Delta2.
The reason I bought Delta 2 over Bluetti was the battery capacity. Delta 2 provides 1024WH as compared to the 716WH from the EB70s. Delta 2 met the power requirements that I was looking for. I could not find any offering by Bluetti in the range of 1000WH capacity. Delta 2 was of course more expensive than Bluetti but the surge power (also called X-BOOST by Ecoflow) is really high. So running a microwave for a short time or a coffee machine at a campsite or picnic is not an issue at all. I bought a combo pack (Delta 2 and solar panel). More about this combo later in the review.
The other reason was the 5 year warranty that comes with the Ecoflow Delta2 vs 2 years for Bluetti. Some models from Bluetti do offer 4 years but were expensive for my use.
Below are a few things I like about Ecoflow Delta2 after using it for sometime.
1) Construction – This is a solid built product. The bottom edges have these rubber bumpers for extra protection. The form factor is designed well to fit in the car. I hope the handles were not protruding out as they are now and were more integrated into the main box. The box is strong and one can easily put heavy items on the top without any issues. With the LFP battery and 3000 battery cycles, the Delta 2 will last forever.
2) Display – It’s big and clear. Very easy to read even on a bright day. All the connections that are turned on are shown on the display even when a load is not connected but for USB only when a load is connected, the icon is displayed. Not sure why only the USB icon behaves like that. Not an issue at all but just wondering why a different behavior as compared to other connections.
3) App and Connectivity – The phone app works great and it’s very easy to use. There are so many options that you can set via the app. Connecting the Delta 2 to the app was a breeze. It connects to WiFi without any issue and also to bluetooth. The app shows correct data 99.9% of the time. Once in a while you have to refresh (close/open) the app to get the latest data. It is very rare but I did notice it.
When the WiFi is available, the Delta 2 connects via WiFi. If there is no WiFi connection, it automatically switches to Bluetooth connection. The connection is just seamless and you are always connected to the Delta 2.
4) Charging – Delta 2 can charge at a whopping 1200W to be ready from 0% to 100% in about just 80 minutes. The fans do kick-in to dissipate all the heat generated during this fast charging. I personally charge the unit at 500 W with fan running but much less noisier and may be better for the battery life.
The solar charging can go up to 500 W. I don’t have enough solar panels to check that max limit but this can be a really handy feature during a blackout conditions or with limited hours of sun during camping.
One can charge the battery before leaving camping or any other work. Charge while driving from the 12V DC outlet in the car (Also known as the Cigarette lighter port) and the battery will be 100% when you reach your camp/work site.
5) Output Connections – There are more than enough connections that one can use, in my view. With a massive 1800 W peak capacity and 2700 W of surge capacity, I think you can run almost any home appliance with this Delta 2. The provided ports like USB A, USB C, Power Outlets and 12 V (Car type) are good to power any device you may have.
Now coming to the combo I got. I bought the combo of Delta 2 and Solar Panels that were rigid. I was not happy with the size and format of rigid panels so I reached the Ecoflow support team. Even though I made that choice and now wanted to get portable panels, the Ecoflow team worked with me. The support team was amazing with quick responses and answering all the questions I had. It was good to see Ecoflow believes in good customer service that still cares about their customers. One of the best customer service teams I have worked with.
One option that I would like Ecoflow to add will be to set the discharging and charging percentages even when connected to the power outlet. I would like to connect a solar panel for charging and connect my garage refrigerator to Delta 2 and use the battery power. If the battery falls below a certain level (let’s say 30%) it can charge via the power outlet, else the refrigerator can keep running via the solar power. This option is provided when you connect a Ecoflow smart generator to Delta 2 but not when connected to a power outlet. I hope Ecoflow will implement this feature in the future software update.
A Sleem –