EF ECOFLOW Portable Power Station DELTA 2 Max 2048Wh, 2400W LiFePO4 Battery | 2400W LFP Solar Generator, Full Charge in 1 Hr, Solar Powered Generator for Home Backup Camping RV, Solar Panel Optional
Condition: New
Buy Now, Pay Later
As low as
/ mo
Learn more
- – Up to 36-month term if approved
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
Non-returnable item
Learn more
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Availability:
20 left in stock
Arrives
Friday, Sep 25
Recently Viewed
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 powers devices overnight without disturbing sleep. Use the EcoFlow app to manage your energy use, set automations, and more
- Multiple Charging Options: Supports solar panel charging, AC wall outlet charging, and car charging to provide flexible power solutions for home backup, outdoor activities, and emergency situations
- Advanced Safety Features: Built-in Battery Management System monitors voltage, current, and temperature in real-time to ensure safe and reliable operation during charging and discharging cycles
Description
Without internal combustion engines, solar generators are extremely quiet. From a distance of approximately 20 inches, the noise level of a DELTA 2 Max solar generator (low input and output of around 500W) is only 30 dB, versus others with a volume of 45 dB or higher. In comparison, gas generators can run at an average of 70 dB even from a distance. Solar generators don't burn fossil fuel, so with zero emissions or fumes, they're a clean replacement for gas generators. Unlike gas generators, there's no fuel to refill, filters to clean, or moving parts to break. Without engine oil level checks, oil changes or spark arrestor inspections, spend more time on doing what you like. Outdoors is the only safe place to operate a portable gas generator, keeping your family safe from toxic carbon monoxide. Since it doesn't emit any fumes you can use a solar generator anywhere, inside or out.
Brand: EF ECOFLOW
Wattage: 2048 watt-hours
Fuel Type: electric
Power Source: Solar Powered
Recommended Uses For Product: Home Backup
Item Weight: 23 kg
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 hertz
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
Item Type Name: DELTA2 Max
Manufacturer Part Number: EFD350
Warranty Description: 5 Year
Item Weight: 23 kg
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:
Friday, Sep 25
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
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.
...
show more
Reviewed in the United States on March 28, 2026 by curt dalgleish
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!
...
show more
Reviewed in the United States on December 16, 2023 by Sean M Larson
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.
...
show more
Reviewed in the United States on November 29, 2025 by Farook
Style: DELTA 2 Max 2048Wh
I bought this item for my home, and it’s no secret that many Latin American countries experience frequent power outages that can last for hours. I can honestly say this has been an excellent solution for my family. It can power many household appliances, including refrigerators, washing machines, and more. It has been a tremendous help, and I can confidently say it’s an excellent product. I highly recommend it for both home and outdoor use.
...
show more
Reviewed in the United States on July 15, 2026 by Leti
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. UPDATE: SEVERAL MONTHS AND POWER OUTAGES LATER: I read the review above, by "curt", complaining that this unit is not reliable. I would suggest that his complaints are "operator error". If you read the directions thoroughly (they are very good) you find out that most of the features time out if you do not set each one up to never time out. And, they do ask you every time before they do a software update and require an affirmative "yes" to begin (I never do the update remotely so I can check things out in person) and they do warn you when you begin a software update that you should re-set the features after the update. The default "timeout" on each output, was to preserve battery life if you are using it as a battery and not a USB. But the control software on your iPhone is very good, and if you READ THE INSTRUCTIONS you will know to toggle on all of the "never shut off" toggles. I tested this on my furnace many times by pulling the power cord when the furnace was running. Not even a hiccup. Also, we woke up one morning at the mountain home with news that a huge pine tree feel on a power line over night in the cold of winter. We didn't know, because the furnace switched over to this battery backup without any intervention, and we were still toasty warm in the morning although we had no lights. It kept us with heat long enough for the power to come back on later in the day. Another time, there was a scheduled power outage that was supposed to last for the whole day. We had to leave in the middle of the day before power was restored. We were able to log on remotely to this unit, to find out when power was restored later in the day (it shows you input and output wattage; when the input wattage is restored you know that you have power again). Read the instrutions. Du'oh.
...
show more
Reviewed in the United States on March 19, 2026 by Texas Customer
Style: DELTA 2 Max 2048Wh
Ordered this so I could power my pop-up tent trailer for trips longer than a weekend and as a backup generator for my pellet stove and sump pump for winter outages (but mostly for my RV). I only use about 250-300W per day on my pop-up...but even with my 210AH batteries I can only get ~4days before that batteries are below the 50% mark (told I should no discharge batteries below 50% to lengthen battery life. The problem is that I often go for 2 weeks and need the electric to run my gas fridge if nothing else (but also want to occasionally run the water pump as well. I don't want to rent a site with electric because they are 2x as expensive as a primitive (no hookup) tent site (there is a weird loophole what a popup is considered a tent even though my pop-up is 21' long and has a bathroom, shower, full kitchen, etc. just like a full RC). I had brought a small 2000W Honda generator which is very quite but ran into 2 problem: 1) the campground I use most frequently doesn't allow generators at all, and 2) instead of it taking about an hour or 2 to fully charge the battery the pop-up when into regular charging mode which is only 5A so a full charge would take over 10 hours of running the generator (apparently to not damage the battery) The ECOFLOW solves my problem in 2 ways: 1) it has a full 2000WHrs of power which should be enough to power my popup on its own for over 7 days (with another 4 from the trailer batteries), 2) It can fully recharge in less then 1.5hours using either AC or my Honda generator and then give me another 7 days. The recharge time for me is key as it means that for my next planned trip for 6 weeks I can either bring the generator to the men's room and plug it in for an hour, or go to a parking lot outside the campgroup and recharge with my Honda generator. I test with the Honda generator and it works just as expected. It took just a bit longer than I had hoped (1hr) only because the Honda was only able to source 13A continuously instead of 15A and I also wanted to go to 100% not 80%) I also am considering just getting a 200W or 400W solar panel that they sell and probably would not even need to recharge with AC or generator for the duration. Build quality is excellent and while the unit is heavy it's not that bad to carry with the 2 built in handles (with 2 people it's a snap) Very happy with this purchase and as a bonus it gives me piece of mind for the occasional power failures we get during the winter. While a bit pricey I think what you get is probably worth it and is a great solution for my situation.
...
show more
Reviewed in the United States on October 5, 2023 by JP
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
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.
...
show more
Reviewed in the United States on July 16, 2024 by The Review Goat