I downloaded the app from the App Store. I’m sure my CCP monitor will approve of this review. Intended use of my units: partial home power backup for small devices/appliances while experiencing a power outage. To be a stop gap while generator setup is performed. Would then be used for nighttime operations of refrigerators and tv setup to relieve generator. There are several more in depth reviews with users having utilized killawatt plugs or an oscilloscope. I have not done this. This review is based upon a single test use only, but I am pleased to this point with only one small gripe. The gripe first. I purchased two Ecoflow Delta 2 units on Black Friday for a considerable discount. One of the two (this one) was a Delta 2/200W (x2 100W panels) solar panel combo. The gripe is related to the solar panel. The unit is supplied with the connectors to link the panels which is as expected. However, the panel to PSS cable isn’t particularly long. If you want to say…leave the battery unit inside while your panels are mounted outside while you charge…well, you will need a male to female XT60 extension. That’s a small gripe, but it will mean another purchase. A 15’ cable inside of the 6’ cable would let me put panels outside while my Delta 2 is more safely kept inside. End gripe The unit seems reasonably sturdy in built. The assembly is tight and nothing rattles or creaks. The fan runs during charging and discharging as needed. It is not particularly loud in my opinion, but this is quite subjective and some may be more sensitive. The display on the unit is adequate telling you remaining charge and consumption rate while using or remaining charge time and input rate when using the AC cord or panels. The app is actually pretty good and easy to use. The unit can be turned on (at the device of course) and left in standby mode with no outlets active until you decide to power them up/down via the manual button or the app. I have not tested how long the device keeps charge while in standby and no outlets active but without load. This would take a long time and I do not see the point of leaving it in perpetual standby. I do like that you can designate upper charge capacity and lower discharge limits via the app. To me, this makes maintaining the device much simpler. I recognize that some will not appreciate the idea of limiting how fully you charge the device as it cannot be known when an outage will happen. Many will want to keep the device fully charged. I plan to follow Ecoflow’s guidelines for maintenance and charge state between actual need of the units. While LiFePO4 batteries are more forgiving, these are expensive and I’d like to keep them within warranty. This is why I got the solar panel option to supplement charging from my generator during an outage. The Deltas can power small items to give the generator a break at night or during oil changes and refueling or simply to help save fuel. The unit is about 27lb. It is not overly heavy for its size but take this into consideration as you may not want to move it a lot during use/storage (see gripe about XT60 cord length). It is early, but so far I am very happy with the quality and capacity of the units. One will run my stove blower for hours, or power the entertainment center for several hours and a refrigerator overnight based upon observed rate of discharge. These appear to be a good supplement to an outage protection plan.

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.

Highly recommend this product if you are looking for any outdoor power source. I'm sure it would work for inside uses as well but its provided me a lot of comfort and ease when camping, going on day trips when I'm looking to electrify my environment. The product is great. Sleek powerful and highly capable. The customer service from ECOFLOW is also amazing (shout out to Kiki)

Lo compré en marzo pero solo funcionó durante una semana y luego comenzó a reiniciarse cada pocos minutos, por lo que ahora no puedes usarlo sin ir y venir y hacer clic en el botón de inicio. Entonces me puse en contacto con el servicio de garantía oficial pero, después de 2 semanas de correos electrónicos con ellos, se negaron a ayudarme y me dijeron que me pusiera en contacto con un vendedor de Amazon para obtener una garantía (lo cual parece sospechoso). Pero el vendedor ya lleva unos días sin responder. Ahora tengo una unidad rota sin soporte alguno.

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.

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.

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.