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EcoFlow  |  SKU: EF-EFDELTA2Max-US

EcoFlow DELTA 2 Max Portable Power Station

$1,414.99 $1,627.99

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Time frame allotted: 30 days from the date of delivery

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  • Expandable capacity - 2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to hit a capacity of 6144Wh. Ideal for home backup, RVing, outdoors or even everyday use.
  • Built to last 6× longer - Get 10 years of daily use until hitting 80% of its original capacity. That’s down to its LFP battery chemistry giving you 3000+ cycles.
  • Huge AC output - With X-Boost mode get up to 3400W output power to run 99% of home appliances. Power 15 devices at once including 6 AC outlets.
  • Fastest recharging - World's fastest AC recharging and X-Stream dual AC+Solar charging speeds. Up to 1000W solar input to charge in as fast as 2.3 hours.
  • Capture more energy - 99% MPPT efficiency maximizes solar generation anytime.
  • Customized in-app energy management - Prioritize solar or AC charging, view input and output power, battery levels and more.
  • 5-Year warranty

Ditch Gas, Go Solar
Winner of Red Dot Design Award 2023. EcoFlow DELTA 2 Max Solar Generator

No fumes. No noise.
No maintenance.

Solar generators don't burn fossil fuel, so with zero emissions or fumes, they're a clean, eco-friendly replacement for gas generators.
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.
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.
Use Safely Indoors
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.
Run 99% of Appliances with X-Boost.
Power pretty much anything with up to 3400W Output
DELTA Max powers almost all the devices you need with a large 2400W AC output. Plus, with X-Boost proprietary technology, run appliances with an output of up to 3400W. Compared with other power stations, DELTA 2 Max can power more devices, while still preventing overloading and overheating.

  • X-Boost Mode up to 3400W
  • Safe and Stable Battery Chemistry
  • Run Even More Heavy-Duty Appliances

Power through outages
Plug-and-play home back up power solution.

Power your essential appliances with a hefty 2400W AC output by connecting DELTA 2
Max (2kWh) and up to two Smart Extra Batteries (6kWh) 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.
  • 120V Home Backup Soluion
  • 2400W Huge AC output
  • 6kWh Connect up to 2 EcoFlow Smart Extra Batteries

Power for the entire family. 2048Wh Capacity
A generous 2048Wh capacity makes DELTA 2 Max ideal for home backup, running your essentials for hours. Using your transfer switch, or plugged in directly, keep your fridge on and stop food from spoiling for up to 14 hours. With its lightweight design, DELTA 2 Max is portable enough to grab and go on the next camping trip.

*Data based on a 120W referigerator.
Home Backup
RVing & Outdoors

DIY Projects

Filmmaking & Photography

Expandable up to 6kWh. Triple the Power

Take DELTA 2 Max with you anywhere as a solo unit or connect it with two
Extra Batteries for up to 6kWh of home backup.
  • 2048wh DELTA 2 Max
  • 4096Wh DELTA 2 Max + 1 × Extra Battery
  • 6144Wh DELTA 2 Max + 2 × Extra Battery

As Quiet as 30 dB
Peaceful charging.
At only 30 dB, DELTA 2 Max is quieter than other 2kWh power stations on the market.

*From a distance of approximately 20 in., noise level is 30 dB (with low input and 500W output)
vs. other power stations with 55 dB or higher.

Fuel Up 80% in Only 43 Mins*
Experience the world's fastest 43 minute recharge
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.

*When combined AC and solar input is 2400W using 1800W AC input and a minimum of 600W solar input. In only 43 min get an 80% charge

Maximize solar generation during the daylight hours.
99% MPPT Efficiency
EcoFlow's smart (MPPT) algorithm automatically detects voltage and current in real time to give you optimum solar generation throughout the day, even during cold and cloudy days.

Up to 1000W solar input
With a solar input of 1000W, connect up to 2 EcoFlow 400W
Portable Solar Panels or 4 sets of 220W Bifacial Solar Panels.

Durable, Safe, Lightweight

10-year long-lasting LFP battery
With its upgraded LFP battery chemistry, DELTA 2 Max 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 6× longer than other power stations with a similar capacity and output.

LFP Battery Chemistry
That's 6× 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 safe, secure, and built to
stand the test of time.
Protective Layers Inside and Out
With LFP cells, DELTA 2 Max is safe, durable, and highly efficient.
A rubber anti-slip base and a highly-rated UL94-5VA fire-resistant casing
offer multiple layers of protection.
Robust Design
Made with a sturdy one-piece design, DELTA 2 Max is designed for the rough and tumble of portability. Each port is reinforced, protecting them against wear and tear.
Industry's Lightest 2400W LFP Solar Generator
Even with its upgraded LFP battery, DELTA 2 Max is still 30% lighter than similar 2kWh LFP power stations on the market.
*Weight 23kg

Customized In-App Energy Management
Take control of your power.

Smart Automatic Control.
Save more on electricity billsCustomize the working time of DELTA 2 Max to avoid peak rates.Customized In-App Energy Management
AC Always-on. Experience peace of mind during power outages With our all-new AC Always On Mode, the AC power button stays on, even during a power outage or after the grid power is back, keeping your appliances powered no matter what.
Energy Management. Easily adjust power Easily adjust AC or Solar input to fit your needs: backup power reserve or energy savings.Prioritize solar energy input via the EcoFlow app when using X-Stream AC + solar dual charging.

Low Battery Reminder. Always power readyGet a notification via the app when the battery hits a low.

Save more on electricity bills
Customize the working time of DELTA 2 Max to avoid peak rates.

DELTA 2 Series
Expandable LFP Battery Power Solution

DELTA 2 offers capacities of 1-3kWh, while DELTA 2 Max provides energy storage from 2-6kWh. Get 10 years of daily use before hitting 80% of its original capacity. That’s down to its LiFePO4 battery chemistry, giving you 3000 full cycles for a 6× longer life.


EcoFlow DELTA 2 Max | Ditch Gas, Go Solar

EcoFlow DELTA 2 Max | No Noise, No Problem.

Stay Cool On Your Next Adventure | EcoFlow

EcoFlow DELTA 2 Max | No Fumes, No Pollution.

Solar Power in Bad Weather: EcoFlow 160W Solar Panel Tested

Frequently Asked Questions

What battery does the product use?

It uses a high-quality LFP battery.

How do i know if the product is charging?

When it's charging, the remaining charging time will be shown on the LCD Screen. Meanwhile, the cahrging indicator icon begins to rotate with the remaining battery percentage and the input power shown on the right of the circle.

How do i clean the product?

Please gently wipe it with a dry, soft, clean cloth or paper towel.

How do i store the product?

Before storing, please turn off the product first, and then store it in a dry, ventilated place at room temperature. Do not place it near water resources . For long-term storage, please discharge and recharge the product every three months to extend its battery life,

Can i take teh product on a plane?


How do i get the most solar power?

Increase the efficiency of your solar panel by facing it directly at the sun without any obstruction. Remember to be careful when handling your solar panel because damaged cells provide less power.

Does it charge it it's inside?

Yes, if the only thing between it and the sun is transparent, but it won’t charge as well compared to being outside. You can compare the difference by looking at the input section of your power station’s LCD screen.


EcoFlow DELTA 2 Max Portable Power Station

EcoFlow 160W Solar Panel


EcoFlow DELTA 2 Max Portable Power Station

AC Output6 outlets, 2400W total (Surge 4800W)
USB-A Output2 ports, 5V, 2.4A, 12W Max per port
USB-C Output2 ports, 5/9/12/15/20V, 5A, 100W Max per port
DC5521 Output2 ports, 12.6V, 3A, 38W Max per port
AC Input Voltage100-120V~ max. 15A 50Hz/60Hz
Car ChargingSupport 12V/24V battery, 8A
Battery ChemistryLFP (LiFePO4 battery)
ConnectivityWi-Fi & Bluetooth
Net weight (lbs)50 lbs
Extra BatterySupports up to two DELTA 2 Max Smart Extra Batteries / DELTA Max Smart Extra Battery
Max Device(s) Power (with X-Boost)X-Boost 3400 W
USB-A Fast Charge2 ports, 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max
Car Power OutputCar Power Output
AC ChargingX-stream Fast Charge 1800W, 15A
Solar Charging11-60V 15A, single port 500W; dual port 1,000W
EcoFlow WAVE& WAVE 2 & GACIER &Smart generatorSupported
Cycle Life3000 cycles to 80+% capacity
Dimensions497 × 242 × 305 mm /19.6 × 9.5 × 12 in
Net weight (kg)23kg

Ecoflow 160W Solar Panel

Unfolded Dimensions26.8*61.8*1.0 in (68*157*2.4 cm)
Weight15.4 lb (Solar Panel 11 lb)
Rated Power160W(±5W)
Connector TypeSolar Connector
Short Circuit Current9.6A (Imp 8.8A)
Operating & Storage Temperature−4°F to 185°F
Folded Dimensions26.8*16.5*1.0 in (68*42*2.4 cm)
Warranty12 months
Open Circuit Voltage21.4V (Vmp 18.2V)
Cell TypeMonocrystalline Silicon

What's Included


1 x

AC Charging CAble

1 x

Car Charging Cable

1 x

DC5521 to DC5525 Cable

1 x

User's Manual & Warranty Card

1 x

Optional Accessories

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