2400-watt ecoflow delta 2 max portable power station + x boost proprietary technology centered front view of a gray and charcoal portable power station with molded top handle, digital display showing charge percent and output icons, multiple USB-A and USB-C ports, AC output panel and status LED, textured ventilated sides, white studio background; suitable for home backup or campsite power.
2400-Watt EcoFlow DELTA 2 Max Portable Power Station + X Boost proprietary technology
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2400-Watt EcoFlow DELTA 2 Max Portable Power Station + X Boost proprietary technology

As low as $72/mo  with
|99 ratings

Smart summary

Generated by AI
  • Runs Most Home Appliances

    Runs Most Home Appliances

    A 2400W output runs 99% of appliances, preventing overloading or overheating.
  • Lasts For Ten Years

    Lasts For Ten Years

    Upgraded LFP battery chemistry provides 3000 full charging cycles before capacity drops.
  • Charges Up Super Fast

    Charges Up Super Fast

    Combine AC and solar power to get an 80% charge in 43 minutes.
  • Back Up Your Home

    Back Up Your Home

    Add extra batteries to power essential appliances during unexpected blackouts.
  • Runs Very Quietly

    Runs Very Quietly

    At only 30 dB, this power station operates without disrupting your home.

Specifications

  • Dimensions: 19.6 Ă— 9.5 Ă— 12 inch
  • Capacity: 2048Wh
  • Battery Type: LFP
  • Outputs/Inputs:AC Output: 2400W total (Surge 4800W)
    USB-A Output: 5V, 2.4A, 12W Max per port
    USB-C Input/Output: 5/9/12/15/20V, 5A, 100W Max per port
    Car Input: 12V/24V battery, 8A
    DC5521 Output: 12.6V, 3A, 38W Max per port
    AC Charging Input: X-stream Fast Charge 1800W, 15A
    Solar Charging: 11-60V 15A, single port 500W; dual port 1,000W
  • Safety Features:BMS (Battery Management System)
    Over Voltage Protection
    Overload Protection
    Over Temperature Protection
    Short Circuit Protection
    Low Temperature Protection
    Low Voltage Protection
    Overcurrent Protection
  • Solar Panel Compatibility: EcoFlow Solar Panel
  • Battery Cycle Life: 80%+ capacity after 3000 cycles
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About this item

Product details

"Run 99% of Appliances with X-Boost。 Power pretty much anything with up to 3400W Output. DELTA 2 Max (1900) powers almost all the devices you need with a large 2400W AC output. With X-Boost proprietary technology, run appliances with an output of up to 3400W. Compared with similar portable power stations, DELTA 2 Max (1900) can power more devices while also preventing overloading and overheating.

10-Year Long-lasting LFP Battery. Durable, Safe, Lightweight. With its upgraded LFP battery chemistry, DELTA 2 Max (1900) 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 6Ă— longer than other power stations with a similar capacity and output.

Advanced BMS Protection. A built-in battery management system regulates vitals, including voltage, current, and temperature, keeping DELTA 2 Max (1900) safe, secure, and built to stand the test of time.

120V Home Backup: Power through outages. Power your essential appliances with a hefty 2400W AC output by connecting DELTA 2 Max (1900) (1.9kWh) and up to two Smart Extra Batteries (5.9kWh) with your home's transfer switch for partial home backup. With a plug-and-play design, it's easier than ever to prepare for blackouts.

The world's fastest 43 minute AC+solar recharge Fuel Up 80% in Only 43 Mins*. With DELTA 2 Max (1900)'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. *When combined AC and solar input is 2400W using 1800W AC input and a maximum of 600W solar input.

Dual Solar Input System with Independent MPPT Technology. Maximize solar generation by harnessing multiple PV sources. Maximize the potential of solar energy by simultaneously utilizing multiple photovoltaic (PV) sources with our innovative dual solar input design, each with its independent Maximum Power Point Tracking (MPPT) technology. Enjoy a seamless integration of solar power into your home or business whether you have multiple solar panels or a combination of rooftop and ground-mounted installations, making the most of every ray of sunshine.

As Quiet as 30 dB. At only 30 dB, DELTA 2 Max (1900) is quieter than other 2kWh power stations on the market."

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Key specifications

Specifications

  • Dimensions: 19.6 Ă— 9.5 Ă— 12 inch
  • Capacity: 2048Wh
  • Battery Type: LFP
  • Outputs/Inputs:AC Output: 2400W total (Surge 4800W)
    USB-A Output: 5V, 2.4A, 12W Max per port
    USB-C Input/Output: 5/9/12/15/20V, 5A, 100W Max per port
    Car Input: 12V/24V battery, 8A
    DC5521 Output: 12.6V, 3A, 38W Max per port
    AC Charging Input: X-stream Fast Charge 1800W, 15A
    Solar Charging: 11-60V 15A, single port 500W; dual port 1,000W
  • Safety Features:BMS (Battery Management System)
    Over Voltage Protection
    Overload Protection
    Over Temperature Protection
    Short Circuit Protection
    Low Temperature Protection
    Low Voltage Protection
    Overcurrent Protection
  • Solar Panel Compatibility: EcoFlow Solar Panel
  • Battery Cycle Life: 80%+ capacity after 3000 cycles

Warnings and disclaimers

Ingestion Hazard

This product contains a battery. Death or serious injury can occur if ingested. A swallowed battery can cause Internal Chemical Burn in as little as 2 hours. Keep new and used batteries OUT OF REACH OF CHILDREN. Seek Immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.

Member ratings & reviews

4.8 out of 5 stars
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Showing 1-3 of 99 reviews

Oct 4, 2026
Reviewer name: Kennyb
5 out of 5 stars
5 out of 5 stars review

Delta two max runs everything I needed to in my l

Two I have two of them now just bought the second one couple months back is it every day in my little shop down in storage it powers, air compressor powers all the lights other electrical tools. I have no problem with it last for a couple of days at least very good. The one that I purchased two years back has blown a capacitor and stuff and I'm trying to find out how to get that worked on or repaired

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004
Jul 27, 2026
Reviewer name: MARK
5 out of 5 stars
5 out of 5 stars review

Purchase was for my wife's oxygen concentrator and for that alone it's worth every cent. On 4 liters her machine has gone 9 hours without completely draining. That gives us piece of mind above any generator ever owned. Also I have a portable swamp cooler I've ran for 12 hours along with my tv. What more could I ask. We love ours and want one more. Eco Flow is the best of all.

Helpful?3KDC90RR6AWJ13953461004
reply from Ecoflow Team

Knowing that the DELTA 2 Max gives you peace of mind about keeping your wife’s oxygen concentrator running is especially meaningful. Nine hours of backup power, plus the ability to run your swamp cooler and TV for hours, shows how valuable reliable portable power can be at home. We’re grateful that EcoFlow has earned your trust, and we’d be happy to be part of your setup again when you’re ready for a second unit

Jun 14, 2026
Reviewer name: campingKev
5 out of 5 stars
5 out of 5 stars review

Extreme power with every possibility

This is my second unit, the first one I gave to my son in need. I have been using to power our 35' while charging through EcoFlow 90 alternator generator connected to 2 Battleborn LIFe4 batteries charging with 800 watt solar panels in pass through mode. Loving the freedom to travel on our own power.

Review from ecoflow
Helpful?3KDC90RR6AWJ13953461004
Prices may vary in club and online
How do you want your item?

Curbside Pickup

Free with your membership on eligible items
Columbus, Hilliard Sam's Club