EF ECOFLOW Portable Power Station DELTA 2 Max 2048Wh, 2400W LiFePO4 Battery
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Availability:
20 left in stock
Arrives
Sunday, Oct 18
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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 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
Item Highlight: 2400W LFP Solar Generator, Full Charge in 1 Hr, Solar Powered Generator for Home Backup Camping RV, Solar Panel Optional
Number of Items: 1
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:
Sunday, Oct 18
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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Top Amazon Reviews
Style: DELTA 2 Max 2048Wh
I’m very impressed with this portable power station. It’s easy to use, charges quickly, and provides reliable power when needed. It’s great for camping, road trips, power outages, or as an emergency backup at home. The build feels solid and durable, and the display makes it easy to check the power level. A very useful and dependable product!
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Reviewed in the United States on August 8, 2026 by Luisnier izquierdo
Style: DELTA 2 Max 2048Wh
This portable power station has been an excellent purchase. The manufacturing quality is very good, it feels robust and easy to transport. The screen is clear and allows control of the battery level and consumption without complications. Charging is fast and powers several devices at the same time without problems. It has fully met my expectations and gives me a lot of peace of mind to use it at home, during trips or in the event of a power outage. Highly recommended.
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Reviewed in the United States on July 31, 2026 by Meyvis Rivero
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
If you have some relatives in countries where they take a lot of electricity and you don't want to lack the lights, the fan, the refrigerator, etc., here you have this eco Flow delta 2 Max It can take up to 36 hours to charge depending on the use, In addition to the fact that it has to integrate two solar panels and another extra battery
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Reviewed in the United States on July 30, 2026 by Abrahan Ruiz Lopez
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.
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Reviewed in the United States on July 15, 2026 by Leti
Style: DELTA 2 Max 2048Wh
I bought the Eco-flow Delta 2 Max power station a couple of weeks a go and I am completely satisfied with my purchase. The unit is very well designed and a solid build build. It's very easy to setup and charge. In fact the fast charging feature allows you to fully charge the batteries in under two hours when plugged in to a wall outlet. There is an excellent app that you can download from the Apple App store. The app gives you up to the minute information as to the status of the device. You can see when it's charging and adjust rate. You can also see the wattage of of a connected device drawing down the battery as well as an estimate of how long the battery will last at a given rate. You can monitor the device remotely using the app even when you are out of town. I also like the 10 year battery life of the LFP batteries and the 3,000 charging cycles as compared to other similar devices. The device weighs in at about 50 lbs which is not light but easily manageable. We have a lot of power outages in my area and my main reason for the purchase was for backup power for our refrigerator and wifi modem and router. I tested it on our Samsung refrigerator and could monitor the discharge rate and time. It worked beautifully and will help us avoid losing a lot of food from our fridge and freezer in the future when there is a power outage. Overall, this was an excellent purchase. I like the company and the support they provide on their website. I also purchased the solar panels to go with it for times of extended emergency power failures.
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Reviewed in the United States on July 1, 2023 by DP
Style: DELTA 2 Max 2048Wh
Well packaged, instructions booklet is bare bones so go to YT to learn how to operate. Having the front operational panel and screen on one end and AC and solar receptacles on other has not been a problem yet but some people complain about it. Front panel could use some lighting to see USB ports better. A little heavier than a 5 gallon jug of water but manageable. Easy enough to put on a plant roller or lazy Susan with wheels, or a dolly if you can’t carry it. So far have only tested with recharging my phone and a few usb devices but very quick and can plug in multiple at once as opposed to one at a time with wall socket. A little expensive for a phone charger but that’s not why I bought it, but it is a nice feature. Four USB A including 2 fast charge and 2 USB C ports. Will connect to solar to see what I get. Looking at Callsun 200 panels. Smaller than many portables and less expensive. Should be no problem to use as a portable with their stand and can make it permanent if needed. This will complement my dual fuel generator if needed in an emergency yet can still bring it camping. Decided to buy now before price potentially increases due to current world situation. Checking out add on battery options. The ECOFLOW battery doesn’t allow direct ac charging and is pricey so while this “battery generator” as seen on the box, seems great, I’ll pass on Ecoflow’s battery and panels for now. The app is great once you spend a little time learning it. Can be used without the app. Overall not disappointed so far!
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Reviewed in the United States on March 19, 2026 by DandyRandy
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