EF ECOFLOW Solar Generator DELTA 2 Max 2048Wh with 220W Solar Panel, LiFePO4 Battery Portable Power Station, Up to 3400W AC Output, AC + Solar Fast Dual Charging 0-100% in 1 Hr For Outdoor Camping RV
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Availability:
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Arrives
Thursday, May 28
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Style: DELTA 2 Max+220W Solar Panel
Features
- Fuel up 80% in Only 43 Mins. With DELTA 2 Max's upgraded tech, combine up to 1000W solar input with AC for world-leading charging speeds. In only 43 min get an 80% charge. Or stick with AC for an 80% charge in a speedy 1.1 hour.
- 10-Year Long-Lasting LFP Battery. LFP battery chemistry provides 3000 cycles till it lowers to 80% capacity. That's 6 more cycles than the industry average and more cost-efficient. EcoFlow DELTA2 Max electric generator also comes with an extended 5-year service.
- Expandable Capacity from 2kWh to 6kWh. Triple the capacity of DELTA 2 Max with up to 2 extra solar powered batteries. Customize your energy depending on your needs. With a plug-and-play design, it's easier than ever to prepare for blackouts.
- Power 99% of Your Household Devices. Run pretty much any of your home appliances with up to 2400W. With 15 outlets, there's space for any device, and using X-Boost mode, power high-wattage appliances with up to 3400W.
- Quiet Charging. With volume levels starting from only 30 dB, DELTA 2 Max outdoor generator is perfect for powering devices overnight without disturbing sleep. Use the EcoFlow app to manage your energy use, set automations, and more.
Brand: EF ECOFLOW
Wattage: 2048 Watt-hours
Fuel Type: Solar
Power Source: Solar Powered
Recommended Uses For Product: Camping, Residential
Item Weight: 71 Pounds
Voltage: 120 Volts (AC)
Output Wattage: 2400
Special Feature: As Quiet as 30 dB, 2400W LFP Solar Generator, Expandable Capacity. Up to 6kWh, No fumes. No noise. No maintenance., 10-Year Long-Lasting LFP battery See more
Included Components: EcoFlow DELTA 2 Max Power Station, AC Charging Cable, User Manual
Wattage: 2048 Watt-hours
Fuel Type: Solar
Power Source: Solar Powered
Recommended Uses For Product: Camping, Residential
Voltage: 120 Volts (AC)
Output Wattage: 2400
Additional Features: As Quiet as 30 dB, 2400W LFP Solar Generator, Expandable Capacity. Up to 6kWh, No fumes. No noise. No maintenance., 10-Year Long-Lasting LFP battery
Engine Type: 4 Stroke
Engine Displacement: 79 Cubic Centimeters
Total Power Outlets: 15
Starting Wattage: 4800 Watts
Running Wattage: 2400 Watts
Frequency: 60 Hz
Runtime: 1 hour and 31 minutes
Color: Black&Grey
Material Type: ABS
Brand Name: EF ECOFLOW
Included Components: EcoFlow DELTA 2 Max Power Station, AC Charging Cable, User Manual
Model Name: EcoFlow DELTA 2 Max
Model Number: EFD350
UPC: 842783129673
Manufacturer: ECOFLOW
Manufacturer Part Number: EF ECOFLOW
Item Type Name: Solar Generator
Warranty Description: 5 year
Item Weight: 71 Pounds
Item Dimensions L x W x H: 12.2"L x 9.7"W x 20"H
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, May 28
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: DELTA 2 Max+220W Solar Panel
I've read a LOT of reviews, watched a LOT of Youtube videos and had given the purchase of a solar generator (actually, it's just a big rechargeable battery) a LOT of thought. I won't go into all the specs and technical junk since a lot of the other reviewers have done all that. I will just try and briefly discuss What I think about it. I spent around $1,700 for it but that included a big 200 watt solar panel. I see now that the whole package has even gone down a couple hundred dollars to around $1.500 but I still think I got a pretty good deal. I'm a 66 year old female and though both the battery and solar panels are heavy, I can still move them to where I want them. It's summer time here in the Deep South so I laid the solar panel flat on the ground where strong sunlight could shine on it. I had to move the battery fairly close to the panels since the connection cords are only so long, however I set it on a garden stand up off the ground and covered it with a white reflective towel to keep it from getting hot. The color of the battery is dark grey and will absorb a lot of heat if left out uncovered. And for crying out loud, don't forget about it and leave it out in the rain, or it will be ruined. My battery was at 38% charge when unpacked from the box it was shipped in. After 2 days of being charged by the solar panel (and with adjustments made for the movement of the earth and sun) it got to 76% charge. I like having the option to charge it by use of solar panels (and you can connect 2 of them at the same time but I only used the one it came with), but I hope I don't have to use them very often, since it's not a very efficient way to charge it. I charged it the rest of the way to 100% using a household outlet. I chose this particular solar generator (battery) because of the many high reviews, the price, and an output of 2400 watts will power a LOT of things such as refrigerators, freezers, a washing machine, coffee pots, microwave and all the smaller electronics and crap one thinks they'll need if the power should go off for several days. BUT!!! It won't power big appliances for more than 2 or 3 days before needing recharging. That's where the gas generator really comes in handy. It can be used just long enough to recharge the solar battery then shut off to save gas. That's my plan anyway if it should come to it. I think having both a solar generator and a gas/propane generator is the best way to do it as long as you have enough fuel. I connected my now fully charged solar battery to a mini fridge and it stayed nice and cold for 3 days until I disconnected the fridge and plugged it back into a regular outlet. I learned that if you're going to store the battery long term, that it needs to be at 50% or slightly less of a charge to keep the battery safe from self-damage. I don't know the details about why it needs to be at a lower charge, but whatever. The digital readouts are easy to see, it can be connected by an app to your phone, which would be nice in case you needed to see how things were going at the ol' homestead while you were out foraging for berries and non-poisonous mushrooms. But wait! If there's been an EMP then nothing will work anywa................! I suggest learning how to build a Faraday cage and storing your expensive battery in it when it's not needed. The solar panels are huge. Good luck figuring out how to keep them from getting melted if the bombs fall or the sun belches out a big one in our direction. But, you can only do what you can do...... So far, I really like my big battery. I have absolutely nothing negative to say about it. If it should fail for some reason I will be here to update this review even before you hear the sonic boom I created getting here. Oh yeah! I forgot to mention shipping. The battery took about a week after ordering to arrive and it was very well packaged. The solar panel was shipped separately and took about another week (two weeks after initial order) to arrive in very good condition. I chose to purchase it through Amazon because I'm very familiar with Amazon and it was several hundred dollars cheaper than if I bought it directly from Ecoflow. And shipping is free with Prime.
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Reviewed in the United States on July 30, 2024 by loveguitar
Style: DELTA 2 Max+220W Solar Panel
This battery bank is awesome. Right off the bat, my first impression is that EcoFlow really sets the standard for portable power generators—from the battery itself to the solar panel. Everything was extremely well packaged, almost like opening a Louis Vuitton purse. I charged the battery to 100% and did a full test run to prepare for Edison shutdowns. Edison has been doing two or three 8-hour shutdowns per week to upgrade the grid in my neighborhood. I have a saltwater reef tank, so keeping it running is absolutely critical. During my initial test, I ran everything except the heater and chiller, and the system consistently pulled about 280 watts. After 6 hours, the battery was still running with a little over 20% remaining. That lines up perfectly with the advertised 2048 watt-hours (280W × 6 hours = 1680Wh). My plan is to run the tank while I’m at work. As long as the unit is plugged in, it will top itself off while in use. When Edison shuts down, I should get around 7 hours of runtime. If power comes back intermittently, the unit will continue charging without any interruption to the tank. I tested it under load while charging, and it was pulling 1600 watts—so outages with brief restorations aren’t an issue at all. I also camp, which is another reason I chose a higher-end unit. Since California has been rainy and overcast, I tested the solar panel under poor conditions. Even with complete cloud coverage, the battery was still receiving about 20 watts. For comparison, I set up my 100W GOLABS panel at the same time, and it registered 0 watts. I can’t wait to see what the EcoFlow panel does in partial or full sunlight. I have three kids, and with my old 500-watt unit it was a constant battle over who got to charge their devices. This unit completely solves that problem. It has four USB-A ports (two of them fast charge), two USB-C ports, six 120V outlets, a cigarette lighter socket, and two small accessory jacks on the back. Once everything is fully established, I plan to use this setup to offset some utility costs for my fish tank. With a second solar panel (it has two input ports) and a timer on the charging outlet to turn on halfway through the night, I should be able to run the tank overnight on battery power and use solar during the day. Overall, this unit exceeded my expectations and gives me peace of mind for outages, camping, and everyday use.
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Reviewed in the United States on January 4, 2026 Reviewed in the United States on January 4, 2026 by Derk
Style: DELTA 2 Max+220W Solar Panel
I started with the ECOFLOW Delta-2 by a mishap, but it was easily cleared up by their superior customer service. I now am the proud owner of the Delta 2 MAX. I have some photos of the readings from a gloomy/overcast/cloudy day, where I was still pulling some wattage to charge the system (around 35-45 watts) Then some sunny day shots of the panels set up using their built-in stand=works very well, especially since it is actually a built-in stand from the protective/zip up cover/storage for your expandable panels. They fold out easily and set up just as easy. Make sure to take advantage of the dual surface capabilities! I have pumped out 190+ watts using reflective materials that project the sun's rays unto the back of the panels as well. With the sun at 10-2 pm, and no reflective materials set up yet, I was cranking out 140-160 watts, as shown in the pics. I do not remember if I got the 190+ watt shots, but I will check my phone and post if I can find them, if not, I will get some as soon as I drain the MAX and have to charge it back up. These panels are rated at 220W, and saving you from boring details of specs etc., that equates to around 140-160+- watts during full sun in California. If you need to charge it fast for a trip, use the wall plug, it CRANKS the watts, I have a shot where its at 1152 wats from the wall outlet in my house. The max is portable and light for what it pumps out, "quietly". I am around 6' 200lb weight lifter type guy, and it is light for me, I can carry the generator in 1 hand, and the panels in the other, so many of you fellow muscle guys & gals will be able to do the same I'm guessing, otherwise, just make 2 trips or get a buddy. I also show some shots of it running a dyson vac & washing machine at the same time=EASY for the max. I ran my fridge with the D-2, so the max will have no problem with the fridge as well. The customer service is amazing, responsive to you within 24 hrs, sometimes within the same day=few hours even. They are so professional and kind, even fun to speak with. All have been from the Philippines, and I have YET to receive anything less than superior customer service quality from the Philippines, its as if they were born with superior CS skills built in. I am very grateful for their abilities to handle any and all issues I had after my initial purchase, and the follow up is just as high quality. AND, the issues were minor, and few. Mainly my misunderstanding of specs/etc. as I am quickly learning about the solar products. They have been a HUGE help & friends to my new venture into solar power. YES, I said FRIENDS! Think of one of your best friends, and they stand behind their products like a best friend would stand behind you. Why do I mention this? Because I know how I felt about purchasing my first solar generator, the anxiety & plethora of questions in my head. I have been researching for a few Years, and I am 100% glad I chose ECOFLOW, and I have complete confidence to put MY NAME on their customer service and product support. Bottom line, you CANNOT GO WRONG with ECOFLOW products if all their CS reps are like the ones I spoke with, PLUS their products are performing up to and beyond expectations! At this point, a few months in to owning the MAX, I am extremely happy, and satisfied with every aspect of their company, how often can any of us say that today? I will be investing in a whole home system sometime in the near future, and ECOFLOW is at the top of the list.
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Reviewed in the United States on October 5, 2023 Reviewed in the United States on October 5, 2023 by The Sicilian
Style: DELTA 2 Max+220W Solar Panel
I bought this specifically to run a Starlink Mini antenna and a Macbook Pro (64G/4T) in the field. The Starlink Mini and Macbook Pro only drew between 20 and 70 watts. The solar panel kept it fully charged basically, even unto late in the day, it was at %98 at the end of the day, which was around 8:30PM. On the second day of use, I didn't hook up the solar panel. I used it from 8:30AM until 4:30PM and had %86 left in the battery. So, for my purpose, this was a %100 successful setup. If you do the arithmetic, if I can run for 8 hours on %14 battery draw, that means I could run 56 hours before drawing down the battery. FYI, I did find a carrying strap that works with this, it's the same strap I use for my small tower computer. I couldn't find any carrying straps that said they worked with the EcoFlow, and I already had this one...so decided to try it. That worked perfectly too! The only recommendation I would have is for the USB-C port to support the new PD mode that allows it to directly power higher voltages out of the USB-C, which would make it be able to power the Starlink Mini directly with no adapter. But, the adapter is certainly not a problem with SIX power outlets on the back! So, no harm, no foul on that one.
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Reviewed in the United States on June 23, 2025 by AF
Style: DELTA 2 Max+220W Solar Panel
I couldn’t be anymore happier with my unit. Charged within 45 minutes to 95% from 26% plugged in to DC. Charged with solar panel up to 85% within 4.5 hours from 23%, sun wasn’t that hot in Michigan but a lot faster than my Jackery solar panel charging my explorer 1000 which I love for portability. I bought the Ecoflow to run my sewing machine to do shows while traveling and it works perfectly well for my needs. I am a full time solo traveler therefore both my solar generators get a good workout. A full charge will last me 2 weeks + Hats off to Ecoflow for a fantastic solar generator.
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Reviewed in the United States on December 3, 2025 by Florida Girl
Style: DELTA 2 Max+220W Solar Panel
Easy of use. Battery life. Power. I definitely recommend it
Reviewed in the United States on October 23, 2025 by Eliz Lopez
Style: DELTA 2 Max+220W Solar Panel
This is a great product and EcoFlow is very focused on customer satisfaction. I would recommend a second solar panel bank. I'm feeding mine from two panel sets in series and it is performing very well
Reviewed in the United States on February 21, 2026 by TimV
Style: DELTA 2 Max+220W Solar Panel
I bought this for my mom. She’s thrilled with it every time the electricity goes out. She can connect lamps, the rice cooker, the TV, the refrigerator, and even the washing machine. And charge it is very quickly. Totally worth it!
Reviewed in the United States on February 23, 2026 Reviewed in the United States on February 23, 2026 by Amanda Paz