

🔌 Power your freedom—fast, flexible, and future-ready.
The EF ECOFLOW DELTA 2 is a cutting-edge portable power station featuring a robust 1024Wh LiFePO4 battery with a 3000+ cycle lifespan, delivering a powerful 1800W AC output through 15 ports. It charges ultra-fast—0 to 80% in 50 minutes—and supports up to 500W solar input for eco-friendly recharging. Expandable up to 3kWh with additional batteries, it’s engineered for home backup, camping, and RV use, combining durability, versatility, and smart battery management for dependable off-grid power.







































| ASIN | B0B9XB57XM |
| Best Sellers Rank | #537 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3 in Outdoor Generators |
| Date First Available | August 17, 2022 |
| Item Weight | 27 pounds |
| Item model number | EFD330 |
| Manufacturer | EcoFlow |
| Product Dimensions | 15.7 x 8.3 x 11.3 inches |
D**.
⭐⭐⭐⭐⭐ Rock-solid home backup setup: DELTA 2 + extra battery + solar (1+ year later)
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.
T**Y
One of the best portable storage you can buy
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.
F**E
Fantastic! I bought it for my 85 y/o mother so she feels safer during short power outages. The unit charges really fast. Easy to operate. Depending on what is plugged in and how much the device consumes, it tells you the amount of time the battery will last. It powers her refrigerator, microwave, toaster, coffee maker, Tv, internet, some lamps, helps change her cell phone and additional rechargeable devices such as flash-lights. NOT ALL TOGETHER AT THE SAME TIME of course. You need to use some judgement when powering devices with it. Simple maths, as it runs watts per hour. You need to check the reader to see how much watts are being consumed. Microwave is the worse because it can empty the battery in 30 minutes. But if you use a microwave a max of 10 minutes during a short power outage, you’ll have plenty of battery left for many hours running lamps, internet, computer, radio, and even get your refrigerator cold again. Used wisely, that’s an amazing power backup for short outages. I’ll buy one for my own home now.
M**O
Funcionou por 3 meses apenas
M**O
Excelente producto, su carga es rápida, he tenido corte de energía por la zona donde vivo y la estación de energía me ha ayudado mucho, la última vez conecté un pantalla de 65 pulgadas, un ventilador, el módem y carga de celular duro más de 4 horas, ya no continué utilizando porque llegó la energía eléctrica. En cuanto al vendedor excelente, llegó en tiempo el producto y en en excelentes condiciones.
L**.
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.
R**Y
UPS use ,works great for satellite reciever , modem and TV, last about35 hours without any charging input, this unit switches reasonably fast , fan is loud., ITS WORTH IT !!!!!!
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