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EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, 1800W AC/100W USB-C Output, Solar Generator(Solar Panel Optional) for Home Backup Power, Camping & RVs

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Arrives Thursday, Jun 11
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Style: DELTA 2


Features

  • 7 X Faster Charging. 0-80% in just 50 mins and 0-100% in 80 mins with AC input. That's ideal when you need home backup power and a quick charge using your wall outlet.
  • Expandable Capacity from 1-3kWh. With the standalone portable power station sporting 1kWh, you can add on extra batteries to reach up to 3kWh. Ideal for camping, RVs or off-grid living.and a quick charge using your wall outlet.
  • Power Almost Anything. Portable batteries have come a long way. Power all your appliances with 1800W output, that's on par with outdoor generators without the fumes or noise. With 15 outlets and its huge output, you can power 90% of your appliances.
  • Clean, Green Charging. With up to 500W of solar panel input, DELTA 2 is a solar generator that can be charged while camping, on an RV trip or off-grid.
  • Built to Last 6x Longer. Its LFP(LiFePO4) battery chemistry makes for a portable power station with a 3000+ cycle life. Enough for years on end of use. With a sophisticated BMS, you can go easy knowing its auto-regulating to keep you safe.
  • What's in the Box. EcoFlow DELTA 2 portable power station, AC charging cable, User manual, and an exclusive 5-year customer service.

Brand: EF ECOFLOW


Battery Capacity: 1024


Color: Black


Special Feature: 7x Faster AC charging, Expandable capacity, Huge AC output, Or go green without sacrificing speed, Plug and play home backup power See more


Voltage: 120 Volts


Battery Capacity: 1024


Other Special Features of the Product: 7x Faster AC charging, Expandable capacity, Huge AC output, Or go green without sacrificing speed, Plug and play home backup power


Voltage: 120 Volts


Power Source: Solar Powered


Portable: Yes


Compatible Devices: Ecoflow DELTA Max Battery, Ecoflow DELTA2 Extra Battery, Ecoflow Dual Fuel Generator


Output Wattage: 1800


Number of Outlets: 15


Is Electric: Yes


Antenna Location: Camping


Color: Black


Item Weight: 27 Pounds


Item Dimensions: 15.7 x 8.3 x 11.3 inches


Brand: EF ECOFLOW


Model Name: DELTA 2


Model Number: EFD330


UPC: 842783119520


Built-In Media: Built in Cables, DELTA2 Power Station, User Manual


Mfr Part Number: EFD330


Warranty Description: 5-year


Manufacturer: EcoFlow


Item Type Name: Power Station


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 11

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • ⭐⭐⭐⭐⭐ Rock-solid home backup setup: DELTA 2 + extra battery + solar (1+ year later)
Style: DELTA 2
I bought the EcoFlow DELTA 2 along with the add-on battery and 400W solar panels a little over a year ago as a home backup solution—mainly for power outages during extreme weather. After owning and using this setup for over a year, I can say it’s held up very well and has done exactly what I wanted: reliable, ready-to-go backup power that doesn’t feel like a “toy” when you actually need it. Why I chose this setup: I wasn’t looking for something that only charges phones. I wanted a system I could depend on when the grid goes down—something I can: - Keep charged and ready - Scale up beyond 1 kWh - Recharge from solar if outages last longer than expected The DELTA 2 + extra battery checks those boxes in a clean, modular way. What I like most: 1) It’s been durable and dependable for over a year. The main unit and extra battery have both held up very well so far. That’s the biggest compliment I can give any “emergency” purchase—when you buy it for insurance, you want it to still be solid later. 2) The extra battery is worth it. The base unit is great, but pairing it with the add-on battery takes it from “nice backup” to something that feels legitimately useful in longer outages. More runtime means less stress. 3) Solar makes it a real resilience tool, not just a big battery. Having 400W of solar means I’m not purely dependent on wall charging. Even if you’re not trying to run your whole house, solar gives you the ability to replenish power during extended outages, which is exactly why I bought it. 4) It’s fast and practical to recharge and keep ready. One of the underrated things about EcoFlow is you can top it off quickly and keep the system “prepared” without it being a chore. What I’d tell someone considering it: If you’re buying for extreme weather / outages, I strongly recommend budgeting for the extra battery. If you want true outage resilience, adding solar is what turns it into a more complete plan—especially if outages can last more than a day. Whenever this setup eventually gives out, I'll definitely consider replacing with another Ecoflow product. ... show more
Reviewed in the United States on February 23, 2026 by Dan R.

  • One of the best portable storage you can buy
Style: DELTA 2
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. ... show more
Reviewed in the United States on November 30, 2022 by TechGuy

  • Power bank on steroids with a great user experience
Style: DELTA 2
I'll preface this by saying I'm in the tech industry so if I say "UX", that means User eXperience. I loved this Delta 2 so much I went out and spent thousands of dollars to get a pair of Delta Pros, additional batteries, and their new dual fuel generator. This is portable enough to throw in the backseat of your car for long road trips and keep your smaller power banks charged up if you need something even smaller. We recently drove 1,300 miles to Florida from Illinois with a teenager and a preteen in the car and heard absolutely nothing about their ever so precious devices running out of battery. I brought a couple of power banks to throw in my bag when we went to the theme parks and the Delta 2 kept them charged. This thing packs enough juice to keep 4 phones, a Nintendo switch, and a couple other smaller devices topped off throughout 35 aggregate hours in the car and still had 24% battery life remaining when we got back home. Additionally, I'm a drone pilot. As my initial test, I let all the batteries of the drones, controllers, etc. self drain. I plugged in a total of 12 DJI drone batteries, the smart controller, 2 FPV goggle batteries, and threw on a low draw radio charger as well. It charged all of that simultaneously and only consumed 53% battery life (I had the Delta 2 capped at 80% charge)! That's insane. I can't say enough good things about the app (Android). I would go so far as to say it's in the top 5 apps, as far as user experience goes, that I've ever used. Getting the device connected to WiFi, upgrading the firmware, and getting it set up is extremely intuitive, never had any issues or errors which are typical with other devices (not just power generators, but all devices that connect to WiFi). The intelligence to include a lower charge shut off and an upper charge shutoff tells me that they really considered the lifecycle of your investment. Additionally, you can limit the amount of wattage the devices charge at for their various charging methods, that's just going above and beyond in my opinion. You don't have to worry about tripping any breakers or anything like that. If you're looking for something for camping or a professional drone pilot or just generally need more portable power than a cheapo power bank can provide, you've found the device you're looking for. As a side note, their customer service is absolutely superb. I had one minor question about a different EcoFlow product (the Delta Pro), which they answered promptly and they were very much interested in how my experience went, if I had any questions, concerns, or suggestions. Best customer experience I've had in years. Whoever the people are that are in charge of customer service at EcoFlow deserves a raise as do the people who make the app and consider user experience, absolutely top notch. Thousands of companies should take note of EcoFlow's processes and implement them. ... show more
Reviewed in the United States on March 31, 2023 by Matt B

  • Black Friday purchase for supplemental outage backup
Style: DELTA 2
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. ... show more
Reviewed in the United States on December 19, 2024 by That guy that bought that thing

  • Good
Style: DELTA 2
Excellent portable power station. It has great power output, charges very fast, and the battery life is amazing. Perfect for power outages, camping, or home backup. The app is easy to use and the quality feels premium. Highly recommended.
Reviewed in the United States on May 12, 2026 by Shk

  • Review
Style: DELTA 2
The EcoFlow power station is a reliable and powerful backup power solution. It charges quickly, is easy to use, and provides plenty of power for electronics, small appliances, and outdoor activities. The build quality feels premium, and the display is clear and helpful. Great for camping, road trips, or emergency power outages. Highly recommended! ... show more
Reviewed in the United States on May 31, 2026 by Yilian

  • Keep in mind…
Style: DELTA 2
UPDATE: performs very well buy one interesting thing it will absolutely because it’s done it twice now shut off when using the DC cig plug when set to 12 hours before 12 hours. Done it twice now. I now have it set to “never” turn off and am testing it. So if you have frozen food and are worried about waking up to thawed food invest in a Bluetooth temp alert and not a Govee. I’m using those for now and their alerts are only in the app. Their tech support runs me around never giving me an answer as to why it does this which makes me think they know about it! First off I love this thing. I’m a big fan of EcoFlow. I have been using a River 2 Max almost daily since 2021 and love it so naturally when I wanted something bigger i knew I wanted EcoFlow. The delta 2 IMO is the perfect size. Any larger and I wouldn’t call it portable. It has a great app and plenty of ports and sockets for all your needs. Now about capacity. I saw a review bashing this product for not having its full capacity. No power station can use 100% of its rated capacity. Take whatever the manufacturer says and times it by 80% to get the useable capacity. Some manufacturers can do better say 83%, but they are all close. A Delta 3 is probably better. EcoFlow is always improving. I thought this was known, but apparently it’s not. It’s also why you should buy bigger than you think you’ll need. You really can’t go too big unless you need to carry it all the time. Then bigger of course means heavier. Buy what you can afford and be realistic. For example this Delta 2 can go up to 1800w. Sure but you aren’t using it at that for hours and hours. Try far less than that. Don’t even think you’re plugging in your fridge, a lamp and a your tv and running it on this for a week after a hurricane. Be realistic. Size accordingly. While we are talking hurricane. A gas generator is still best for long term power outages. Pound for pound and dollar for dollar. Sure you can use solar but how does solar work when it’s cloudy and rainy? You know like hurricane weather. How does solar work in the winter when it’s 10 degrees and overcast for two weeks and the power is off? It doesn’t. Days to weeks of power outage it’s best to use a gas generator. Most likely you have a gasoline car. That’s 20 gallons minimum in your tank of reserve ready to go. Siphon it out. Add in some gas cans. Etc etc etc. you get the idea. Usually in a couple days the roads are back and you can go fill gas cans. It will take more days to restore power. To have power reserve with EcoFlow or any battery system for days or weeks requires you to spend thousands and thousands. A gas generator that can keep you going for 2 weeks costs under $400. I know. I have done it several times! In winter. Batteries are nice and convenient, but if the SHTF nothing as of yet beats fossil fuels - gasoline, diesel, propane, natural gas, etc. NOTHING. Now if your SHTF scenario involves total grid down EMP attack then yes invest in solar. Hope it didn’t fry the electronics in your delta 2. I’m not sure it wouldn’t. Anyone test this? Also invest in lots of guns and ammo because people with bigger guns are coming to steal your *hit. ... show more
Reviewed in the United States on December 3, 2024 by WESIII

  • Consider this for a "Fractional Power Wall" but there are better deals out there.
Style: DELTA 2
I've paired this with EcoFlow's "Smart Battery" and am pleased with its performance plus EcoFlow's support (it swapped out, via free shipping, the first unit that had an operational problem). I use it 24/7/365, powered by two Canadian Solar 455W solar panels arranged in parallel, to permanently, on-grid/off-grid power my kitchen refrigerator. During sunny days (South GA, USA) this rig reaches 100% charge by 2:00 - 4:00 p.m. (as of November 15, 2025) and makes it through the night. During grey days, it does not, but its "pass-through" circuit automatically draws power (through the refrigerator's regular wall plug) to compensate. So, you plug your refrigerator into the Delta-2 and then the Delta-2 into the refrigerator's wall plug. That's what I mean by "on-grid/off-grid." Shop on Black Friday for the better deal: The Bluetti Elite 200 V2 (I bought two, for $664 apiece, during Amazon's Prime Day in July 2025). It's newer (EV-grade battery) tech and more efficient. It also matches the Delta-2 + Smart Battery's capacity (never buy less than 2KW output and 2KWH battery capacity). Running an identical solar-powered array, my V2s power my other two refrigeration loads more efficiently (they consume less of what's called "inverter idle power consumption" and discharge at a slower rate). Put another way, their "Return Efficiency" (if you put in 100 units of power, how many units do you get back?) is higher. Again, the V2 is later and better tech and, unsurprisingly, packs a better warranty (Bluetti, too, has accorded me excellent support). Finally, for my next "load" (my PC workstation), I might go for the Pecron E3600LFP (a little less efficient than the V2) to complete my "Fractional Power Wall" plan because it might (on Black Friday) fall below $999 and, even at that price, you get more bang for your buck capacity/performance-wise (a third more power and battery capacity). Don't hesitate to ask A.I. bots, by the way, to compare price/performance ratios for the solar generators that you are considering. Fractional Power Wall: Under this method, you can do what I've been doing. Each "refrigeration array" (two 455W solar panels, wiring, a V2) has cost me (DIY-installation only) about $1200. So now I've got, on an incremental basis, parts of my home nearly 100% "off-grid" with a built-in generator: Those "loads" run (except when grey days come along) 24/7/365 off the sun, just as one can achieve with a $15,000 - $20,000 Tesla Power Wall. But my rigs are installed in a modular, incremental (hence, cash-flow permitting) way. Bonus: If a Tesla Power Wall component fails, the whole system goes down until expert repair addresses it. Under the Fractional Power Wall method, each independent array -- which requires NO permit or power-company consent -- cannot in any way affect the other. And more often than not, the vendor (here EcoFlow, Bluetti) will quickly address the issue via email or free-shipping unit swap-out. That's built-in, added resiliency and redundancy. And, of course, reduced power bills. With no professional skills, even a 70-year-old man like me can achieve this (attend "YouTube University" to learn how to mount solar panels; fortunately, the industry has listened, and it's now mostly "plug-and-play"). Pair each solar generator with a "mini-solar array" and it'll qualify for the 30% tax credit expiring on 12/31/25. ... show more
Reviewed in the United States on November 15, 2025 by Geewhizicist

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