Get 500 EcoCredits, Worth $25
Join Now
Password-free Login/Register
Existing user?
Log in

Long-Duration Emergency Power Supply for Extreme Weather

Massive 180kWh expandable capacity delivers rock-solid 12kW continuous output when you need it most.

  • Stay Comfortable

    Stay Comfortable

    Complete power outage emergency kit meeting your long-duration backup needs during extreme weather, keeping your home powered and family comfortable.

  • Less Waiting

    Less Waiting

    Quick installation process can be completed before storms arrive, ensuring your emergency power generator system is ready when needed most.

  • Unlimited Power

    Unlimited Power

    Expandable system provides unlimited backup power capacity, the ultimate solution for power outage preparedness during severe weather and natural disasters.

  • Ultimate Control

    Ultimate Control

    Integrates Weatherbit forecasting to predict storms and charge batteries, then switches to backup power within 20 ms during outages.

Stay Comfortable

Stay Comfortable

Complete power outage emergency kit meeting your long-duration backup needs during extreme weather, keeping your home powered and family comfortable.

Less Waiting

Less Waiting

Quick installation process can be completed before storms arrive, ensuring your emergency power generator system is ready when needed most.

Unlimited Power

Unlimited Power

Expandable system provides unlimited backup power capacity, the ultimate solution for power outage preparedness during severe weather and natural disasters.

Ultimate Control

Ultimate Control

Integrates Weatherbit forecasting to predict storms and charge batteries, then switches to backup power within 20 ms during outages.

Find Your Versatile Emergency Backup Power For:

Multi-Day
5 Days+
1-4 Days
Hours
The Ultimate Whole-Home Power Command Center
Multi-Day
EcoFlow DELTA Pro Ultra X delivers fast-install whole-home backup power, ready in 7 days for any emergency situation.
Ready in 7 Days*
100% Whole-Home Power*
Wide Generator Compatibility
Smart Home Energy Integration
12kW Output / 12kWh Capacity / 10kW Solar Input
1 × EcoFlow DELTA Pro Ultra X Inverter + 2 × Smart Extra Battery
Designed for the ultimate luxury whole-home backup experience.
Learn More
12kW Output / 12kWh Capacity / 200A Panel / 32 Controllable Circuits
1 × EcoFlow DELTA Pro Ultra X Inverter + 2 × Smart Extra Battery + 1 × EcoFlow Smart Home Panel 3
Intelligent power control and advanced energy management.
Learn More
12kW Output / 12kWh Capacity / 200A Panel / 6 Controllable Circuits
1 × EcoFlow DELTA Pro Ultra X Inverter + 2 × Smart Extra Battery + 1 × EcoFlow Smart Gateway(200A)
Set-and-forget simplicity—Smart Gateway automatically cuts non-critical loads to keep essentials running longer.
Learn More
Whole-Home Backup Kit
For Over 5-Day Outages
Ensure uninterrupted home life for multiple days—work, cook, and unwind without compromise during blackouts.
Expandable Capacity for Growing Needs
Simple Setup
Seamless Auto-Switchover
Customized In-App Energy Management
4-48kWh I 4-12kW I Effortless supply switch
EcoFlow DELTA Pro 3 + Transfer Switch
A simple home backup to keep your essential circuits running during blackouts
Add To Cart
Learn More
4-48kWh I 4-12kW I Auto-on hybrid backup
EcoFlow DELTA Pro 3 + Smart Generator 4000 + Transfer Switch
Hybrid home backup that lasts—even in extreme weather
Add To Cart
Learn More
6-90Wh I 7.2-21.6kW I 0ms downtime
EcoFlow DELTA Pro Ultra + Extra Battery + Smart Home Panel 2
Advanced whole-home backup with intelligent circuit-level management
Add To Cart
Learn More
Essential Backup
For 1-4 Day Outages
Power through a days-long outage—keep your lights, Wi-Fi, and refrigerator running for fresh food and reliable essentials.
Blackout-Ready in 70 min
Plug-and-Play
Energy Conserved on Standby
In-App Energy Management
2048Wh | 3000W
EcoFlow DELTA 3 Max Plus
Run your essential appliances with industry-leading output, extend runtime for your high-priority items using the smart output priority feature. Supports 5 fast-charging methods.
Add To Cart
Learn More
2048Wh I 2400W
EcoFlow DELTA 2 Max
Stay power with 10 years long run
Add To Cart
Learn More
3072Wh | 3600W
EcoFlow DELTA 3 Ultra Plus
Run your energy-hungry appliances with industry-leading output, extend runtime for your high-priority items using the smart output priority feature. Supports 6 fast-charging methods.
Add To Cart
Learn More
3.6-25kWh I 3.6-7.2kW
EcoFlow DELTA Pro
Your first whole home backup battery
Add To Cart
Learn More
4-48kWh I 4-12kW I 120V/240V
EcoFlow DELTA Pro 3
The most portable whole home backup power
Add To Cart
Learn More
6-90Wh I 7.2-21.6kW I 120V/240V
EcoFlow DELTA Pro Ultra
The most powerful whole-home backup solution
Add To Cart
Learn More
Basic Power
For Hours-Long Outages
Keep your essentials powered—medical devices, work tools, and IoT during outages or off-grid situations.
Plug-and-Play
Compact and Portable
Multiple Outlets
Energy Conserved on Standby
245Wh I 300W
EcoFlow RIVER 3
Extremely lightweight for backup and outdoors
Add To Cart
Learn More
286Wh I 600W
EcoFlow RIVER 3 Plus
Next-gen UPS with longer-lasting LiFePO4
Add To Cart
Learn More
1024Wh | 1800W
EcoFlow DELTA 3 Classic
Ultra-versatile 4 charging options and a 45-minute fast-charge.
Add To Cart
Learn More
1024Wh I 1800W
EcoFlow DELTA 3 Plus
Enhanced backup with 10ms UPS and NAS system integration
Add To Cart
Learn More
1024Wh I 1800W
EcoFlow DELTA 3
Get power ready in 40 min
Add To Cart
Learn More
1024Wh | 1800W
EcoFlow DELTA 2
The Fastest Charging 80% in 50 Mins
Add To Cart
Learn More

Power Where Your Generator Can't

EcoFlow portable emergency power supply is ready in seconds, safe for indoor use, and scalable for extended outages. No gas, no noise, no fumes—just reliable, clean power when you need it most.
EF-Picture

Traditional Generators

EF-Picture

EcoFlow Battery Backup

EF-Picture

Home Standby Generators

Hard to operate, manual setup

Plug-and-play, instant power

Month-long installation

Requires regular maintenance and fuel storage

No maintenance, flexible charging options

Requires regular maintenance and fuel storage

Gas emissions, outdoor use only

Indoor-safe, no emissions

Gas emissions, fixed outdoor only

Loud and disruptive

Ultra-quiet (<30 dB)

Loud and disruptive

Heavy and bulky

Lightweight and portable for homes, garages, RVs, and more

Permanently installed

No scalability, fixed output

Expandable capacity and scalable output

Fixed capacity once installed

Runs on gas

Solar-compatible, save energy bills and reduce emissions

Runs on gas

Requires additional equipment and professional setup

Seamless home power integration via Inlet Box or Transfer Switch

Permanently installed and requires professional setup

None

0ms auto-switchover, prolonged backup, and energy bill savings with Smart Home Panel 3

None

EF-Picture

EcoFlow Battery Backup

Plug-and-play, instant power
No maintenance, flexible charging options
Indoor-safe, no emissions
Ultra-quiet (<30 dB)
Lightweight and portable for homes, garages, RVs, and more
Expandable capacity and scalable output
Solar-compatible, save energy bills and reduce emissions
Seamless home power integration via Inlet Box or Transfer Switch
0ms auto-switchover, prolonged backup, and energy bill savings with Smart Home Panel 3
EF-Picture

EcoFlow Battery Backup

Plug-and-play, instant power

No maintenance, flexible charging options

Indoor-safe, no emissions

Ultra-quiet (<30 dB)

Lightweight and portable for homes, garages, RVs, and more

Expandable capacity and scalable output

Solar-compatible, save energy bills and reduce emissions

Seamless home power integration via Inlet Box or Transfer Switch

0ms auto-switchover, prolonged backup, and energy bill savings with Smart Home Panel 3

EF-Picture

Traditional Generators

Hard to operate, manual setup

Requires regular maintenance and fuel storage

Gas emissions, outdoor use only

Loud and disruptive

Heavy and bulky

No scalability, fixed output

Runs on gas

Requires additional equipment and professional setup

None

EF-Picture

Home Standby Generators

Month-long installation

Requires regular maintenance and fuel storage

Gas emissions, fixed outdoor only

Loud and disruptive

Permanently installed

Fixed capacity once installed

Runs on gas

Permanently installed and requires professional setup

None

Built for Real Emergencies. Certified for Peace of Mind

EcoFlow powers your home through blizzards, heatwaves, and blackouts—backed by industry-leading safety certifications and extreme-condition engineering.
Certified Safe, Inside and Out
UL9540
Whole-system certified for electrical and environmental resilience.
UL9540B
Proven to prevent fire propagation and ensure safe home installations.
Ready for the Worst Weather
Self-Heating Battery
Keeps running below 32°F during winter storms and freezes.
X-Cooling System
Dissipates heat fast, even in scorching summer garages.
SOC Balancing
Intelligently balances charging and discharging across all cells—prevents overheating and extends battery lifespan.
Tough from the Core
Cell-to-Chassis Integration
Built like a tank—engineered to withstand impacts and vibration for long-lasting durability.
IP54-Rated LFP Battery
Sealed tight against dust and water splashes for reliable all-weather performance.
UL9540B Certified
Proven fire safety protection prevents propagation and ensures secure home installations.
Long-Term Reliability, Guaranteed
5-Year Warranty
Backed by EcoFlow's official support for lasting peace of mind.
10+ Years Lifespan
With 4,000 full cycles to 80% capacity, it's built for the long haul—powering your family through thousands of outages.
Sign up to unlock special deals on more EcoFlow backup solutions!
Sign up to unlock special deals on more EcoFlow emergency backup solutions!

Also Available at Trusted Retailers

https://websiteoss.ecoflow.com/upload/image/1749621746281/logo1.png
https://websiteoss.ecoflow.com/upload/image/1749621746664/logo2.png
https://websiteoss.ecoflow.com/upload/image/1749621746472/logo3.png
https://websiteoss.ecoflow.com/upload/image/1749621746947/logo4.png
https://websiteoss.ecoflow.com/upload/image/1749621747856/logo5.png
https://websiteoss.ecoflow.com/upload/image/1749621747578/logo6.png
https://websiteoss.ecoflow.com/upload/image/1749621747345/logo7.png
https://websiteoss.ecoflow.com/upload/image/1749621747104/logo8.png

Protect Your Home with Instant Power Backup

One-Day Delivery
Order by 7 AM, and your power will be ready in as little as 1 business day.*
Interest-Free Installments
Backup first, pay over time.
In-Store Pickup
Get home backup power at select shops.
Go Now
Customer service
800-368-8604  (Mon-Fri 9-7, EST)
Free Quote
Global No.1 in Portable Power Station Sales
EcoFlow is the No.1 portable power station brand in the world based on sales and revenue in 2024,* committed to powering a new world.
5M+
Global Users Back Up Using EcoFlow
140+
Worldwide Markets' First Choice
1125+
X-Core 3.0 Technological Patents
65+
Media Awards
* Data source: Frost & Sullivan "2024 Global Portable Energy Storage Market Report." Research completed in April 2025. Portable power stations are small energy storage devices with built-in lithium-ion batteries with a capacity of 100Wh-3000Wh.

Their Real-life Prepping Stories

Join our EcoFlow Group to learn more backup power stories from real-life users.
Jason Molnar
Never fell overwhelm because of an unexpected power cut. These are the times I’m proud to be an EcoFlow owner. I am able to function as usual. Internet + Wi-Fi , lights, computer, tv and AC by the Wave2.
El Niño
Hope everyone in Hourton,Tx is safe, power went out like at 3am the portable a/c never missed a beat didn’t even know there was no power….. very thankful for having the solar set up….
Joe Lopez
Well...since Beryl just hit us with a vengeance. Ecoflow for the win!!!. Powered my fridge, freezer and internet modem to stay in touch!...I had a separate source for my movin' cool 14 classic AC unit...ALL GOOD!!!
Aline Tarullo
Our family went through hurricane Beryl without any hiccup with SHP, 3x DP + 1EB, hooked to 4600w solar array. It was no surprise that we did okay because Ecoflow has been running our house daily for almost a year now. Our electric bill went from $300 to $150. Estimated payoff time is September 2028, when the savings will surpass the $10k investment.
Victor M Roman
Extremely happy we got this ecoflow, all power went out about 30 min ago here in St cloud Florida. Hurricane Milton. We up and running.
Tony Fresco
A lot of posts had me scared. Installed this yesterday, updated the firmware to both (lots of errors while updating) but everything is working as it should. Shut my power yesterday 3pm @ 90% 8:30 am 71% left normal use including well pump. Only day 2 but nice so far
Hector Salgado
I am in Western NC and we were hit hard by the storm! Glad I got my delta max and delta 2 a few months ago. The combination of solar with a gas generator made all the difference! Generator ran for about 2 hrs in the morning and charged up my eco products for the day. Saving a ton of gas and noise! I had no trouble going 4 days till I got power back. 🙏

Together, We'll Power Through

As a WRN Ambassador of NOAA and a partner of local groups, EcoFlow’s #PowerForAll program empowers communities in emergencies. Stay prepared, stay safe, and protect your loved ones.
EF-Picture
EF-Picture
EF-Picture
EF-Picture
EF-Picture
EF-Picture
Emergency Power During Hurricane Helene in the US
In the wake of catastrophic Hurricane Helene in September, EcoFlow partnered with the Special Forces Charitable Trust and donated 10 portable power stations to help the most vulnerable homes recover after Hurricane Helene in September. EcoFlow has also partnered with the non-profit Red Lightning to preposition donated power stations and solar panels in Florida for future hurricane strikes.
EF-Picture
Keep Maui Connected During 2023 Wildfires
In the summer of 2023, Hawaii faced power outages caused by wildfires. In a collaborative effort, EcoFlow and Blue Hawaiian Helicopter donated our products to support the powering of Starlink satellite broadband systems. This initiative ensures that the Maui community remains connected, enabling crucial assistance and maintaining connections with loved ones.
EF-Picture
Texas Winter Storm
After the 2021 Texas snowstorm triggered widespread power outages, we donated all of the portable power stations in our Texas warehouse to the Houston Food Bank in support of local communities.
EF-Picture
California Wildfires
During the 2020 California wildfires, California utility company PG&E purchased 5,000 of our portable power stations for local residents to use in the event of a power failure. This partnership between EcoFlow and PG&E demonstrates our shared dedication to supporting communities and enhancing resilience during challenging times.

* All specifications shown on this page depend on the power station model.

* All data on this page is based on our internal testing under various conditions including temperature variations, humidity levels, and equipment calibration standards. Please note that these results are for information purposes only and should not be taken as conclusive evidence for all scenarios.

* Whole-Home：Refers to the capability to power household appliances-including a 5-ton A/C (based on internal testing). Actual coverage and runtime vary with loads, battery/PV availability, and site conditions.

* 100% Whole-Home Power：Refers to the capability to power household appliances--including a 5-ton (based on internal testing). Actual coverage and runtime vary with loads, battery/PV availability, and site conditions.

* 12kW-36kW output&12kWh-180kWh：capacity.Performance figures are based on the recommended standard bundle configuraon (1 x EcoFlow DELTA Pro Ultra X Inverter + 2 x EcoFlowDELTA Pro Ultra X Batteries). Maximum rated output (36kW) and capacity (18Wh) require system expansion with three EcoFlow DELTA Pro Ultra X Inverter and ten batteries per inverter. Actual output andcapacity depend on the number of battery packs and system setup.

* 7 Days：The 7-day installation applies to major cities and metropolitan areas witheach state. It does not include logistics time, customer's failureto confirm or stay in contact in a timely manner, rescheduling, unsuitableions, extreme weather, force majeure, or other factors beyond EcoFlow's control.

* One-Day Delivery is temporarily applicable only to the EcoFlow DELTA Pro 3 standalone unit in the following regions: Southern California: Imperial, Los Angeles, Orange, San Bernardino, San Diego, Santa Barbara, San Luis Obispo, Riverside, Ventura Counties. Northern Georgia: Helen, Cleveland, Blairsville, Sautee Nacoochee, Clarkesville, Clayton, Dahlonega, Gainesville, Hiawassee, Young Harris, Toccoa. New Jersey: Newark, Jersey City, Paterson, Elizabeth, Trenton, Camden, Clifton, East Orange, Passaic, Union City, Bayonne, Vineland, New Brunswick, Hackensack, Atlantic City, Montclair, Hoboken, Morristown, Princeton, Cape May. Southern Texas: San Antonio, McAllen, Corpus Christi, Laredo. Eastern Texas: Kilgore, Tyler, Longview, Texarkana, Lufkin, Marshall, Palestine, Henderson, Jacksonville, Mount Pleasant, Nacogdoches.