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EF ECOFLOW Portable Power Station DELTA 3 Max, 2048Wh LiFePO4 Battery, Solar Generator (Solar Panel Optional), 3400W X-Boost Output, Ultra-Fast 0-80% Charging in 1.13 Hr, Home Backup & RV Camping

  • Based on 1,611 reviews
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Availability: 20 left in stock
Fulfilled by EcoFlow Inc.

Arrives Friday, May 22
Order within 15 hours and 23 minutes
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Style: DELTA 3 Max


Features

  • Ultra-Fast Charging, 080% in Just 1.13 Hours Thanks to EcoFlows advanced X-Stream technology, DELTA 3 Max can recharge from 080% in just over an hour. That means less waiting and more doing, whether youre preparing for a blackout, charging before a road trip, or topping up at the campsite. Reliable power is always ready when you need it most.
  • Up to 3400W Continuous X-Boost Mode Power 99% of Appliances With an impressive 3400W X-Boost output, this portable power station easily runs high-demand appliances like fridges, microwaves, and even power tools. From emergency backup to RV adventures, enjoy peace of mind knowing your essentials stay powered without overload.
  • Ultra-Quiet Performance & Rapid 10ms Transfer Time Designed for home backup, DELTA 3 Max kicks in with less than 10ms transfer time, keeping sensitive electronics like computers and medical devices safe from outages. Plus, its ultra-quiet operation ensures your nights remain peacefulno noisy distractions during use.
  • Lighter & Durable Design, Built for 10 Years of Daily Use DELTA 3 Max engineered with a long-lasting LiFePO4 battery. Its lighter, durable build makes it easier to carry from your home to your RV or campsite without sacrificing strength or performance. EcoFlow DELTA2 Max electric generator also comes with an extended 5-year service.
  • Smarter App Control Save on Costs Without Sacrificing Comfort Connect with the EcoFlow app to monitor energy use in real time, set smart priorities, and cut electricity costs. Easily manage charging and discharging schedules, all while ensuring your comfort and convenience remain top priority.

Brand: EF ECOFLOW


Wattage: 3400 watts


Fuel Type: Solar


Power Source: Solar Powered


Recommended Uses For Product: Camping, Residential


Output Wattage: 2400


Special Feature: Portable


Included Components: AC Charging Cable *1, EcoFlow DELTA 3 Max Portable Power Station *1, Manuals & Warranty Card *1


Product Dimensions: 9.4"L x 12"W x 19.44"H


Material: Aluminum, Plastic


Wattage: 3400 watts


Fuel Type: Solar


Power Source: Solar Powered


Recommended Uses For Product: Camping, Residential


Output Wattage: 2400


Additional Features: Portable


Engine Type: Solar


Total Power Outlets: 3


Engine Power Maximum: 3.4 Kilowatts


Starting Wattage: 3400 Watts


Running Wattage: 3400 Watts


Runtime: 10 hours


Item Dimensions L x W x H: 9.4"L x 12"W x 19.44"H


Material Type: Aluminum, Plastic


Brand Name: EF ECOFLOW


Included Components: AC Charging Cable *1, EcoFlow DELTA 3 Max Portable Power Station *1, Manuals & Warranty Card *1


Model Name: DELTA 3 MAX


Model Number: EF-DL-H02-3M


UPC: 842783191779


Manufacturer: ECOFLOW


Manufacturer Part Number: Delta 3 Max


Unit Count: 1.0 Count


Item Type Name: portable power station


Warranty Description: 5 year manufacturer


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 22

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Good app
Style: DELTA 3 Max
Nicely made, seems easy to use. App is excellent and allows unit to look up weather on the web, identify an approaching storm and change charging from slow to full rate in anticipation of storm and wanting to be fully charged. Claims that it can provide power draw on each of the four outlets individually but this has not been tested yet. No 240V outlet so still can’t power our well pump. ... show more
Reviewed in the United States on March 13, 2026 by Mark

  • Powerful and reliable portable power station
Style: DELTA 3 Max
This EcoFlow portable power station works отлично and is very reliable. It charges fast and holds power for a long time, which makes it perfect for emergencies, camping, or everyday use. It’s easy to use, with multiple outlets that let me charge different devices at the same time. The build quality feels solid and durable. Overall, it’s a great investment and gives peace of mind knowing you have backup power when you need it. Highly recommended! ... show more
Reviewed in the United States on March 19, 2026 by Rebeca Reyes

  • Fast ship. Unit looks like a quality product. Box was torn, but the unit appeared unharmed.
Style: DELTA 3 Max
Unit showed up 4 days early, great considering another storm is coming our way. Unit is somewhat heavy at about 48 lbs. It came 90% charged and was fully charged in about 15 minutes. Will try some AC products on it tomorrow. I do with the display was on the top side, but a minor quibble and many will probably put this up on some table. It will be nice to see how long 2,000 watts lasts. I like having many USB ports. ... show more
Reviewed in the United States on January 29, 2026 by James Tavegia

  • A Production Game-Changer for On-Location Filming
Style: DELTA 3 Max
This power station has become an essential piece of gear on our film sets. I work in documentary production where we’re often filming in remote locations, and having reliable power for cameras, monitors, laptops, and charging multiple batteries throughout the day is critical. The EcoFlow DELTA 3 Max delivers exactly that. The capacity is impressive, it charges gear quickly, and it allows our crew to keep working without worrying about losing power in the middle of a shoot. It’s also surprisingly easy to move around set and perfect for working on the go when we’re far from traditional power sources. For filmmakers, photographers, or anyone working remotely in the field, this is a fantastic investment. It’s dependable, powerful, and has made our production days much smoother. Highly recommend. ... show more
Reviewed in the United States on March 5, 2026 by Jeanette Jolley | Reel Traveller

  • Well designed, works as advertised, useful app with VERY easy setup
Style: DELTA 3 Max
I have had the Delta 3 Max for a couple of weeks now. Charging from both wall power and solar panels worked fine, and the XT60i cable signaled the unit for higher current and faster charging. If you use a plain XT60 (no i) cable, the unit will only charge at 12V and a max of 8 Amps. Both AC and DC output ports work. I am puzzled why the 12V car plug was on the back with the other inputs, but not a big deal. I have not yet tested the USB ports. Construction is solid and I really appreciate the carrying handles on each end, much better than a single handle. During wall charging at 1700W, the fan did turn on, pulling air in from the front and out the back, but it was very quiet. You can watch battery temperature in the app, and in this case (70 degree indoors), the battery temp hovered around 100 degrees while charging and dropped quickly when done. The buttons on the front panel sort of blend in, so they are hard to find in dim light, but you can feel around for them and activate them The display shows which input and output ports are in use and the charge and discharge rates with time remaining. The app paired VERY easily to my Android starting with Bluetooth and then transitioned to my WiFi to complete the setup. I heard that you do need Wifi to complete the installation, so do initial configuration before you go off-grid. The app is qood, but does take some exploring to figure out the features. There are two types of home screens...the 'filling battery' and the 'power in / power out'...see which one you like. The description of station operating modes was a bit confusing to me. You can program min and max battery charge levels, as well as max input charting current for both AC and DC. I can connect to my power station using the app when away from home, but I'm not sure what IP path the communication takes. I suspect that the station is communicating to Ecoflow HQ, and the app is pulling the data from the HQ internet portal. It didn't seem to have any issues with my firewall. ... show more
Reviewed in the United States on March 15, 2026 by Amazon Customer

  • I use it for my power tools
Style: DELTA 3 Max
Great product
Reviewed in the United States on April 2, 2026 by malik

  • EcoFlow Delta 3 Max, enough power for emergencies
Style: DELTA 3 Max
The Delta 3 Max seems to have met my needs. Living in a high fire zone, power could be turned off without much notice. So far, I have tested the unit powering my refrigerator and works well. According to the APP, it will last me for 14 hours running my 150W refrigerator. With this battery storage, I could easily make it through an outage with power for lights and charging mobile phones. ... show more
Reviewed in the United States on December 1, 2025 by J Newcomb

  • Powerful, Fast - charging & Super Reliable
Style: DELTA 3 Max
I am extremely impressed with the EF ECOFLOW DELTA 3 Max. The battery life is outstanding, and it charges incredibly fast. It easily powers multiple devices at once without any issues. The build quality feels solid and durable, and the display is clear and easy to read.
Reviewed in the United States on February 24, 2026 by Yuli

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