I have only had my Delta 2 about a week, but it has already been a game changer for me. It has become central to my quality of life. With 1800w of AC output in such a small and complete package I now can move more freely while maintaining my ability control my environment. I have severe food allergies and the Delta 2 allows me to take my food preparation on the road with me so that I can insure my food is allergen free and cooked to my preference. No more cold, water logged food on the go. I now have a small refrigerator, induction burner, and water pot in the trunk of my car, or in my SUV. I can pull over at the time and location of my choice and by doing so level out the nutritional intake that curbs the peaks and valleys associated with delayed meals. The Delta 2 is easy to use, has ample charging options, and is rock solid in its performance. Game changer and life changer.

Received my DELTA 2 and 220W bifacial solar panel a few days ago. Also purchased the extension cable for the solar panel (the cables included with the panel would have been everything I needed, but I wanted some additional length). The shipping process was fast (about a week) and I received good notifications on progress. Both the DELTA 2 and the solar panel appear to be good quality, and initial tests align with the expectations I had based on the product advertising. My original plan was to use the product mostly as an easier source of emergency in-home power than my gas-powered generator, but I'm now thinking of some other potential uses as well (UPS/backup for sump pump, power in the far corners of the property, an occasional picnic or camping trip, etc). I'm not sure I'll be using the phone app given the potential security risks of hooking an emergency power supply to an internet connected device. So far, I'm very happy with my decision to purchase the products.

Having owned several brands of portable batteries for our off grid solar living, I was pleased to receive the DELTA 2 addition recently. The battery is extremely fast charging, reliable, and as advertised. Well designed and the app is a plus for monitoring. I love that it is lithiumFE battery based which will allow many cycles of charging.

I have only had my Delta 2 for a week but so far I am very impressed. I also have the Anker 555 Power Station which is a good product but in comparing the two similarly priced products believe the EcoFlow Delta 2 is superior. The Delta has more charging options and the fast charging of the Delta is impressive. I look forward to putting this to use in remote locations.

Just invested in the EcoFlow platform, including the Delta 2, and excited about the possibilities. In addition to having home backup security (I am in Texas where we experienced the ice storm a couple years ago that did major damage), we spend a lot of time camping in our Airstream. We invested in the Delta 2 because of the flexibility of having it at home...or being able to take it on the road when we camp. Was excited they released the Delta 2, with the better batteries, right when I started looking! I haven't had it long, but the quality seems great. Fans slightly louder than I expected.

After a lot of research I purchased the Delta 2 as a backup for my farmhouse. We have power outages here every winter and I use a duel fuel generator to run my pump for water. But keeping that noisy generator running constantly is just too annoying. So I got this eco flow for quiet efficient energy when I don’t need the big generator running. I have used it through this winter and it is perfect- extremely easy to use, enough energy for my basic house needs, and chargeable by solar or from my larger generator. And when not in use, it is very simple to store and light enough for me to move easy. Thank you for this excellent introduction to solar alternatives. I look forward to expanding in this direction.

Unit arrived at about 30% charge. Fast charged via AC quickly. Then I left it sit. For about a month. Plugged a MacBook in to charge and the Delta 2 was still at 100%. I'm not used to batteries sitting idle and holding a charge like this. Awesome. put some juice into the MacBook and then connected the solar panels. My 100W panels gave me 97W input on a sunny January day. In fact, my solar input was more than my MacBook was drawing.

I've bought battery for a whole home backup. I started with Bluetti EB70 and soon faced lack of capacity so decided to move to Delta 2. It was surprisingly to get only 200Wh extra capacity "on paper" and actually get 2x times more longer working time for appliances. Also you'he possibility to extent capasity 2 or 3 times with extra beaateries as well. Also a big plus of Delta 2 is interesting feature - if I plug something that needs more power than Delta 2 can output - it will still work at maximun output. So you still can use your applience (not in full power but still). As a small improvement I can suggest integrate small lamp into battery. Usually it's really hard to plug socket in darkness so small light may be very useful. P.S. It also has more comfortable sitting place for my cat.

I bought the Delta 2 primarily as a backup power source for my refrigerator during any short power outages this winter. I can also use it as a backup power supply for my home office or a small freezer if needed. As a test, I hooked up a laptop with additional 21" and 32" monitors while working today. I also periodically ran a 15-watt lamp, a second desktop computer, and charged some devices. The Delta 2 provided exactly 10 hours of power. According to the Kill-A-Watt P3 power meter it was approximately 780 watt hours out of the listed 1024 for an overall efficiency of 76.2%. To be honest I was hoping for more, but I do plan on picking up the extra battery. However, the basic amount should be enough to get the refrigerator and maybe a small chest freezer through the night during a short power outage. For solar charging I picked up two 160-watt EcoFlow panels. I set the two panels up on my back porch and tracked the sun from mid-morning to mid-afternoon. The two panels generated a maximum of 250 watts of input with clear skies but noticeable wildfire smoke. I was able to bring the battery up from 30% to 80% before the trees blocked out the sun. Solar panel efficiency dropped off quickly with any shading. I experimented with parallel and series wiring as shown in the manual. I found I got a little more wattage out of the series method. When I looked at the specs I think that was because in parallel I was exceeding the 15 watt maximum input and it was throttled down by the control system. Adding a third panel would max out the system on volts and watts, and it might be worth considering for winter charging with fewer hours of less intense sunlight. These three panels could only be hooked up in series. AC charging was fast! I actually tempered the charging to 800 watts maximum instead of the standard 1200 watts to reduce the amperage, but even with input reduced by one third a full charge from 0% to 100% took less than 2 hours. The fan runs the entire time the unit is charging. It is noticeable but not loud. Overall I feel this is a great item to have on standby for short power outages. It can power small appliances and a computer for a significant amount of time when needed. Set up is fast and easy. The 160-watt solar panels are fairly lightweight and appear to be more durable than glass panels. The manual should do a better job of explaining the differences between parallel and series options (that might be a good feature for the app). The Delta 2 is manageable in size and weight and would even fit in an RV for mobile power needs.

After looking at a lot of different options I came to the conclusion this was clearly the best product of its kind out there. It also helps that the price point is roughly the same as other brands but you get a lot more. For instance the solar panel is bigger. For the same size unit. All you need to do is compare the features and Eco flow comes out on top