EF ECOFLOW Portable Power Station DELTA 2 Max, 2400W LFP Solar Generator, Full Charge in 1 Hr, 2048Wh Solar Powered Generator for Home Backup(Solar Panel Optional)
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Availability:
20 left in stock
Arrives
Jun 17 – Jun 19
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Style: DELTA 2 Max 2048Wh
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: electric
Power Source: Solar Powered
Recommended Uses For Product: Home Backup
Item Weight: 23 Kilograms
Voltage: 120 Volts
Output Wattage: 3400 Watts
Special Feature: 10-Year Long-Lasting LFP battery, 2400W LFP Solar Generator, As Quiet as 30 dB, Expandable Capacity. Up to 6kWh, No fumes. No noise. No maintenance. See more
Included Components: AC Charging Cable *1, EcoFlow DELTA 2 Max Portable Power Station*1
Wattage: 2048 Watt-hours
Fuel Type: electric
Power Source: Solar Powered
Recommended Uses For Product: Home Backup
Voltage: 120 Volts
Output Wattage: 3400 Watts
Additional Features: 10-Year Long-Lasting LFP battery, 2400W LFP Solar Generator, As Quiet as 30 dB, Expandable Capacity. Up to 6kWh, No fumes. No noise. No maintenance.
Engine Type: 4 Stroke
Ignition System Type: electric
Engine Displacement: 79 Cubic Centimeters
Total Power Outlets: 6
Engine Power Maximum: 2400 Watts
Starting Wattage: 4800 Watts
Running Wattage: 2400 Watts
Frequency: 60 Hz
Runtime: 43 minutes
Color: Black&Grey
Material Type: ABS
Brand Name: EF ECOFLOW
Included Components: AC Charging Cable *1, EcoFlow DELTA 2 Max Portable Power Station*1
Model Name: DELTA2 Max
Model Number: EFD350
UPC: 842783128706
Manufacturer: EF ECOFLOW
Manufacturer Part Number: EFD350
Item Type Name: DELTA2 Max
Warranty Description: 5 Year
Item Weight: 23 Kilograms
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:
Jun 17 – Jun 19
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: DELTA 2 Max 2048Wh
I recently acquired the EF ECOFLOW Portable Power Station DELTA 2 Max and it has been nothing short of a game-changer for my sailboat maintenance and outdoor adventures. As an individual who frequently works on a sailboat, the need for a reliable, robust power source is paramount, and this power station has exceeded all my expectations. Firstly, its impressive 2400W output and 2048Wh capacity have been instrumental in running a variety of equipment. From power tools essential for boat repairs to lighting that extends my working hours, it handles everything with ease. Moreover, I’ve even used it to power a small heater, which speaks volumes about its versatility and power. The rapid charging feature is another highlight. Being able to fully charge the power station in just about an hour is incredible, especially when time is of the essence. This feature has saved me a lot of time and hassle, allowing me to focus more on my work and less on power management. Its portability is a huge advantage. Despite its high power output, it’s compact enough to be carried around easily, which is crucial for someone who is constantly moving around on a sailboat or outdoors. Lastly, the durability and build quality are top-notch, ensuring that this power station can withstand the challenging marine environment. It feels robust and reliable, which is essential for any equipment used in such settings. In conclusion, the EF ECOFLOW Portable Power Station DELTA 2 Max is an outstanding product that I highly recommend. It’s a perfect fit for anyone in need of a powerful, fast-charging, and durable power source for outdoor activities or marine use. A solid 5-star rating from me!
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Reviewed in the United States on December 16, 2023 by Sean M Larson
Style: DELTA 2 Max 2048Wh
It's a great product for what it's designed to do: act as a nearly silent standby power source. It's powerful and well-built, but has too many features for it to be used as I intended. I purchased this mainly as an EPS backup for our sump pump. After using it for one day, I can say with a high level of certainty that it's not a good idea. 1) It does NOT act as a simple pass-through. While your grid power is ON, if anything goes wrong with the EcoFlow's configuration, or inverter failure, misc. electronic failure, etc., it will no longer pass the power through to your pump. Grid power ON + EcoFlow issues = flooded basement. 2) The unit has a manual power switch. Again, when the unit is powered off, power is not passed through. 3) The unit has an AC toggle switch (also in the app). If the AC is toggled OFF, power is not passed through. 4) There's a device timeout. If power isn't drawn during the timeout, then the EcoFlow will time out and not pass power through. It can be set to "Never Timeout". 5) There's an AC timeout. If AC power isn't drawn during the timeout, then the EcoFlow will time out and not pass power through. It can be set to "Never Timeout". 6) Firmware upgrades will cause the unit to revert to the default settings. There's a notice indicating this when you upgrade the firmware. This morning, I upgraded the firmware. After the upgrade, the AC was toggled OFF. OFF is the default. I recognized this within 30 minutes of the firmware upgrade (the sump pit was nearly full). I toggled the AC back ON, then the pump ran. What if they decide to push a firmware upgrade out automatically? I believe the timeouts were also reset to default, which is less than "Never Timeout". The question I asked myself was, "How reliable is our grid power?" My answer is about 99.999%. In 15 years, we've been without power for about 12 hours total. The final question is: how reliable is the EcoFlow? Given the five points above, it's certainly under 99.999%. I'm plugging the pump back into the wall.
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Reviewed in the United States on March 28, 2026 by curt dalgleish
Style: DELTA 2 Max 2048Wh
I just received the DELTA 2 Max, and right out of the box it made a strong impression. The charging speed is the first thing that stood out to me. When I plugged it in for the first time, the percentage jumped so quickly that I actually double-checked the display. Getting to 80% in under an hour is not an exaggeration — it really does it. The overall build quality feels premium. The LFP battery chemistry was a major reason I chose this model, and even as a new owner, you can tell it’s designed for long-term durability. It gives a sense of confidence that you’re not buying something that will fade out after a handful of uses. I immediately tested it with several of my own devices — my computer setup, my monitor, some studio gear, a few household items — and it handled everything without even blinking. Seeing it push out clean power to multiple things at once reassures you that the 2400W rating is not just theory. The number of outlets also makes it practical; I never felt limited or cramped trying to plug in several items at the same time. The quiet operation is another pleasant surprise. When it’s charging, it’s barely noticeable. I had it sitting a few feet away, and it never became a distraction. The expandable capacity is also a smart feature. Even though I haven’t added extra batteries yet, just knowing that I can turn this into a much larger backup system if needed is a big plus. Overall, as a new owner, everything about this unit feels solid, fast, thoughtfully designed, and genuinely capable. It delivers exactly what I hoped for when I ordered it.
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Reviewed in the United States on November 29, 2025 by Farook
Style: DELTA 2 Max 2048Wh
This is enough to power a house-sized furnace blower for multiple hours (gas furnace, not electric, of course). We permanently keep it plugged in to our vaction house furnace to provide an automatic USB-like cutover when we are gone, to keep the house from freezing during shorter power outages. When the power is on, it powers straight through this unit to the furnace, without invovling the battery. It works great for that purpose; just be sure to set the AC output to "always on". Although it would only run the furnace continuously for 3 hours when the power goes out, the furnace does not run continuosly so this battery runs our gas furnace for about 7 hours in the winter keeping the temp at 70 when it is freezing outside; would probably run much longer if you were keeping the temp at 50. The free iPhone app that comes with it, allows us to see what is happening remotely when there is a power outage at an empty vacation home. Of course, you need to put another smaller version of this item on your WiFi system, to use like a USB on steroids, so it stays up and allows you to remotely monitor the house while the power is out. We bought the solar panels for backup, but we have not plugged them in to try them out yet.
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Reviewed in the United States on March 19, 2026 by Texas Customer
Style: DELTA 2 Max 2048Wh
Runs 55inch tv, dishwasher,washer/dryer, fridge, lamps, window AC units and all for free from solar panels. High use gets 12 to 16 hours of usage before multiple ways to recharge, solar, wall AC, car lighter plug etc.
Reviewed in the United States on June 6, 2026 by James
Style: DELTA 2 Max 2048Wh
I have several ecoflo products they all work well and save me electric at my house, power my motor home and multiple tools, space heater and more. Very useful.
Reviewed in the United States on May 5, 2026 by bigronbo
Style: DELTA 2 Max 2048Wh
What is it? It is a Portable Power Station DELTA 2 Max made by ECOFLOW. They call it a Solar Generator however it is a 2048Wh battery unit. It does not CREATE power so it is not a generator. Once charged it can be used to power devices like a cell phone charger, refrigerator, or even an air conditioner. Using this as a backup solution for your home is also a good option as it provides plenty of power for many of the things you'd want to utilize during a power outage like a deep freezer, Wi-Fi router, Television, Microwave, CPAP, coffee maker, chargers, etc. Why do you need it? If you need battery backup or stored energy to power things, this may be the right product for you. What are some of the best features? It can be charged via grid (1,800W AC input), solar, or even charge from your car. I was able to charge mine from 0% to 100% in one hour and fifteen minutes using grid. Once the colling fans start, you can hear them if you are near it but they are pretty quiet, wouldn't disturb your favorite television show. If you choose to charge using solar, you can do so up to 1000W max using dual 500W inputs. You can also charge via grad at the same time. *Per ECOFLOW website: "With its upgraded LFP battery chemistry, DELTA 2 Max has a lifespan of 3000 complete cycles until it reduces to 80% capacity. You'll get pretty much 10 years of power, even if you use it every day. That's 6× longer than other power stations with a similar capacity and output." **Lithium Iron Phosphate battery chemistry (also known as LFP or LiFePO4) is an advanced subtype of Lithium Ion battery commonly used in backup battery and Electric Vehicle (EV) applications. You can add up to two additional battery unit to this providing up to 6144Wh. It has a FIVE YEAR warranty. There are six 30AMP outlets, two USB-C ports, two USB-A ports, two FAST USB-A ports, two DC5521 12 volt ports, and a Car Power Output (cigarette lighter for us older generation) What could use improvement? 1. It would have been nice if it would have included a pair of solar charging cables. ECOFLOW website nor ECOFLOW Amazon Store had any available so I ordered these: https://www.amazon.com/dp/B0CCRTB5N7 You will want the XT60i, it must include the "i" if you want to have the capability of 500 watts each. The XT60i connector has an anti reverse insertion design. 2. Occasionally when connecting the solar panels, the unit wouldn't auto-start charging right away. Sometimes I'd have to disconnect the solar cable a time or two before the Delta 2 Max would start charging from the panels.
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Reviewed in the United States on November 1, 2023 Reviewed in the United States on November 1, 2023 by ParaTech
Style: DELTA 2 Max 2048Wh
So 1, like 2 million other Houston residents, lost power for several days after our most recent hurricane. I thought I was covered with my delta 2 max and dual fuel smart generator. I was wrong. I spent about 75% of the blackout drenched in sweat fighting to get the "smart" generator to cooperate with the delta 2 max. I had constant issues. The main problem being that the generator would rev up like it was about to send power to the delta but then zeroing out seconds later while still revving as if it was sending power. Constant 520 codes among others. It only worked about 1 of every 10 attempts. The "smart" feature that's supposed to run the dual fuel to charge the delta when it drops below a certain percentage worked 1 time in 5 days without power. Meaning waking up in the middle of the night to fight with it for an hour before I could get it to send any power and usually resulting only a partial charge before I had to fight it again in 100 degree 100% humidity weather. So completely disappointed in what was a major investment for myself and my family. Step in EcoFlow customer service. I called in the middle of the blackout on a particularly frustrating day and was shocked there was no one I could speak to that had any technical knowledge of the system. All the support agents don't even scratch the surface of technical support beyond checking for frayed wires. Extremely disappointing. I was told they'd escalate and send an email so I could enter product info and they'd have someone from technical support call and help me out with diagnosing the issue and warranty support. 3 full days later and nothing. Called back and just got off the phone with them and nothing has changed. No new information. No explanation, no timetable, nothing other than the same useless customer support experience I went through the first time. It's unbelievable that you can invest so much money into an emergency power system and receive zero technical support in a timely manner especially during a time of crisis. I'm currently still waiting on a callback. Think long and hard before you invest into this ecosystem. Their support is nonexistent in my experience. One of the worst I've ever dealt with.
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Reviewed in the United States on July 16, 2024 by The Review Goat