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. Read more

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I bought this a few years ago and really like it! There is no comparison between this and the Goal Zero Yeti. When the power went off for for 5-6 hours I used it to power my aquarium pump and heater. No issues with it, it takes less than an hour to charge the Ecoflow (1800W) and it holds the charge for months. The Goal Zero (500W) takes almost 8 hours to charge. I live in Canada and considering the winters we have and the weather I anticipate more power failures so I bought another Ecoflow Delta 2 during Black Friday sales. These units are very well made and the ones I have are about 33 lbs so not too heavy to handle. Read more

Best part is the ease of use. Plug stuff in, push the little 'AC' or 'USB' on buttons and it just works. This unit keeps us powered remotely for exactly 3 days at a time between recharges - running light power tools (drills, etc.) and all the LED lights in our shipping container, plus charging phones, laptops and tablets. Fast recharge is great. We found it charges 10% per hour with the DC car charger while driving, and it's probably somewhat helpful for the life of the unit to have it charge slowly like this. Very pleased with it so far. Six month update - this continues to be one incredible power pack. Built an entire off-grid cabin from the ground up (including running the cement mixer) using only it and dual 100w solar panels to charge during the day. Also runs a log splitter like a champ. Only issue we had was recurring shutoffs last week with a blinking fan warning light indicating (apparently - who reads the manual until they have to?) a blocked fan. Blew about a pound of sawdust out of the poor little unit and she was back to working like new. Pro tip: Don't set this under the table saw while cutting hundreds of 2x6's! ;) Love the ability to access so much info (state of charge as %, time to charge, wattage draw in-and-out, etc.) via the digital display. We can keep an eye on it minute-by-minute to know when we have to plan a break to recharge and then still have power for overnight camp use. Looking forward to picking up one of the new Ecoflow 'Ultra' power packs in future, given how pleased we are with this smaller unit. 13 month update - still a solid 5-star experience and performing flawlessly - entirely off-grid and using the unit right now to power Starlink and computer. We've recharged it at least 400 times as we've used it every single day for all 13 months, and it has the same power reserve as when it was brand-new. Been a fantastic unit and now shopping for the additional battery for it just for some extra reserve time. The only thing I would like to see it have would be some kind of audible warning chime when reaching 5 or 10% power level - the first and only warning you get is total shutdown when it's out of power. Read more

The Delta II portable power station has been an excellent purchase. The charge lasts a long time and it fully recharges very quickly. It’s perfect for camping or for emergencies when the power goes out. In my case, I sent it to my family in another country, and they are very satisfied since it has been extremely useful during power outages. It has multiple ports to plug in and connect several devices at the same time, making it very practical. It also offers the option to purchase an additional solar panel for recharging, which is a great advantage. Highly recommended for its power, versatility, and quality. Read more

I have 4 Ecoflow portable power stations and they all work great. I like the Delta 2 units because they don't weigh too much and are a great value when on sale. Pros: Will power pretty much anything in your kitchen with the 1800 watt inverter. Charges quickly in 1 hour off of 120 volts. It has 1024 Wh battery but only weights 27 pounds. Has 120 volt, 12 volt, and USB outputs. Great for camping, travel, or powering appliances in your trailer. Con: The inverter consumes about 10 % of the power which is pretty normal for inverters. Will not run some power tools because of the high power surge lasting several seconds. Read more

A second update has been added to the end of this review. A quick update: The power station sat for a couple of months after the most recent charge. Today I decided to discharge and recharge it. It still showed 100% charge when turned on and ran a small portable room air conditioner for over half an hour. It still had 50% charge and didn’t get even slightly warm. The AC unit draws about 900 watts. This is truly an impressive device! Original review: I have used this power station only for a few days and so far it has proven to be easy to use and it delivers the performance advertised. It is quick to charge, even at a much lower charge rate than maximum. It is not particularly loud when charging. I have tested it by using it to power my CPAP machine. In this application, it is silent. I calculate it would be able to operate the CPAP machine between 4 and 7 nights. My machine heats the humidifier water and the breathing tube. Other machines might do even better if they don’t have these features. We recently experienced a once-every-30-year ice storm and were without electricity for about 4 ½ days. I wish I had this power station during the blackout, but I am quite confident it will serve us well now that we have it. Our freezer just barely kept most if the food safe, but running it for an hour or two once or twice a day would certainly extend that safety margin considerably, and the power station could probably handle that for a day or two and still provide adequate cell phone charging and enough time on the CPAP machine to keep me safe for a few nights. The unit itself was well-packaged. The instructions are clear, and the app fairly simple and useful. The unit itself is not visibly intrusive, it’s quite compact and seems very well made. These days we are almost shamefully dependent on our electric and electronic devices, which are getting very energy efficient. Also this dependency is much more pronounced as we live longer. All in all a great purchase, which I hope never to actually need to use, but I am very sure we will need it sooner or later. Second update: About 14 months after the terrible power outage last year I bought a second Delta 2. The first one has performed perfectly, particularly during a fairly lengthy power outage a couple of months ago. I have been considering how to increase my reserve capacity: Should I get an auxiliary battery or a second power station? The price is about the same, but having 2 complete units seems to be more flexible. I had an opportunity to get a second Delta 2 for about ⅓ off the regular price, so that became my choice. It’s so impressive how the power station pretty much sets itself up once plugged in, the app is opened on my phone and I touch h to the + button to add a new device. This is now my third EcoFlow unit because I bought a River 2 just for my CPAP machine about 6 months ago, and it has kept me safe on quite a few occasions. I feel very confident that we will be able to manage well during any future power interruptions. Read more