I purchased the Delta 2 combo with the 220 watt bi-facial solar panel a few months ago and so far it has worked well for all my needs. I chose the Delta 2 because of its lighter weight and higher number of performance cycles over the original Delta that boasts a higher charge efficiency. It got its first workout as an EPS to back up the bilge-heater I have in an older boat to protect the engines from freezing. It provided good peace of mind during the Bomb Cyclone back in December, 2022 when temperatures plunged into the single digits where we live. There is a feature on the EcoFlow App under Lab Features that does need to be set to “AC always on” to use effectively. Currently the Delta 2 is earning its keep, building out a small cabin that will be off the grid. Its first day of use was to provide lighting for installing the floor and running a power jig saw to cut the flooring for an afternoon. The Delta 2 was still at 85% battery once we got done five hours later. At this point, I think it will see lots of use!

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.

We bought a camper last year and wanted a battery and inverter option to allow us to work remotely. The Delta 2 is perfect because it’s small and lightweight relative to its capabilities. We also like being able to carry extra batteries as needed for more capacity but leaving them home when not needed. It’s also been great at home. We lost power for a day recently while I had an important meeting and it ran my entire work setup with plenty of charge left over. Highly recommend.

We live in an area with above ground power lines and outages occur after windy storms etc. We needed a generator to keep our fridge cool and have a backup power source to make the outages less of a concern. I did lots of research for gas generators but wasn’t happy about having to maintain them, go outside to start it, and run extension cords through the door or windows. Enter the Ecoflow! Although it won’t run as long as a gas generator, it’s so much more useful. The Delta2 is no bigger than a toaster oven and is light enough to carry with one hand. We have used it in the car for powering AC devices and otherwise keep it on the workbench where it’s ready for home backup. I prefer the battery chemistry in the Delta 2 and hope it will last longer then a traditional lithium ion pack. One feature I hope could be provided via software- it would help to be able to manage not just the AC charging speed, but be able to put it into a long term maintenance mode. I find that it continually uses power when plugged in and left on. It would be nice to have a storage mode where it only charges up if the storage drops below a threshold.

This is the first portable power station and I have to say I'm very impressed. I was originally going to go with a competitors model but after seeing the specs on the delta 2 I changed my mind. I'm really happy with its performance, charging and capabilities. It has been the perfect addition to my camping setup and I don't leave it on a trip without it.

We received our EcoFlow Delta 2 in December of 2022. Very easy to operate and learn the different features. Came to us about 85% charged and didn’t take any time to get it to 100%. We headed out for a trip to Quartzite Arizona from Ohio. Worked like a charm, charging all our electronic equipment since we were completely off grid. We also purchased the Ecoflow 220W Bifacial portable solar panels. These panels worked great with the station. Would I recommend the Ecoflow Delta 2, absolutely yes!

Best portable battery. Fast charging time from wall outlet. Good mppt charging from solar. Lifepo4 batteries for a longer battery life. Extended battery. Big inverter to power most needs. EcoFlow quality. Way better than the Goalzero. Also the Bluetooth and wifi app is well designed

Been using the D2 for about a week now with amazing results. With a flexible office location, bring the D2 outdoors to power up my home office is amazing. With the EF solar panel plugged in, I’m generating more energy than I’m consuming… Simply amazing

I am in the honeymoon stages right now but so far so good, has worked as anticipated and learning more about it every day. Bought it to run a Dometic cfx3 75dz and it runs this perfectly. Bought a 110 panel to charge while out and seems to work well keeping up with the output .

As a new homeowner I have been concerned with being at the mercy of the local utilities during inclement weather. Within a couple of months of receiving my Delta 2 (Delta Burke) we had rolling blackouts. Delta performed just as she should. I decided on this unit because I have gas cooking and a gas fireplace so those are usually always operational. Delta B powered my coffee maker, router, tv, and Christmas tree quietly and flawlessly during the blackout. I am currently in the middle of an ice storm and knowing Delta is charged and ready should the power go out gives me tremendous peace of mind.