About Us Contact Us Shipping Easy Returns Privacy Terms of Service Happy Customers Solar System Size Calculator
Skip to content
Ecoflow DELTA 3 Max Portable Power Station - Black + 400w Solar Panel

Ecoflow DELTA 3 Max Portable Power Station - Black + 400w Solar Panel

BY: EcoFlow | SKU: D3M-400W-B Availability: In Stock
$2,698.00
$1,199.00
You Save: $1,499.00

Notify me when back in stock

Found a Better Price?

Share it with us now and we will beat it. Get the best deal online - Guaranteed!

Call/Text Us: 877-556-3347
Live Chat With an Expert

  • Authorized EcoFlow Dealer

    Full manufacturer warranty included

  • Free Shipping + No Sales Tax (Most States)

    More savings on every purchase

  • Easy 30-Day Returns & Price Beat Guarantee

    Risk-free shopping + best price guaranteed

  • Lifetime Expert Support

    Dedicated help whenever you need it

Estimated Delivery Between

and .

Order within to get it by the earliest date.

Ecoflow DELTA 3 Max Portable Power Station - Black + 400w Solar Panel

The EcoFlow DELTA 3 Max Portable Power Station - Black + 400W Solar Panel is the ultimate all-in-one off-grid power solution. With 2048Wh of capacity, 2400W AC output (3400W X-Boost), and rapid solar recharging up to 500W, it’s perfect for home backup, RV life, and outdoor adventures.

Enjoy smart control via the EcoFlow App, seamless UPS protection, and sustainable power anywhere — all with zero emissions and ultra-quiet operation.

Placeholder Image

EcoFlow DELTA 3 Max Portable Power Station - Black + 400W Solar Panel Features

Massive Power Output – Delivers 2400W continuous and 3400W X-Boost power to run heavy appliances like refrigerators, AC units, and power tools.

Long-Life LiFePO₄ Battery – Engineered for 3,000+ charge cycles, ensuring durability and long-term performance.

Fast Solar Charging – Recharges in record time with the 400W high-efficiency solar panel included in the kit.

Smart App Control – Connect via Wi-Fi or Bluetooth to monitor, control, and adjust settings remotely.

Multiple Output Options – Includes AC, USB-A, USB-C, and DC ports for all your devices.

Seamless UPS Mode – <10ms automatic switchover keeps your devices running during power interruptions.

Eco-Friendly Power – 100% clean energy with zero fuel, noise, or maintenance.

Placeholder Image

EcoFlow DELTA 3 Max Portable Power Station - Black + 400W Solar Panel Applications

  • Home Backup – Keeps your essentials running during power outages.
  • RV & Van Life – Power your off-grid lifestyle effortlessly.
  • Camping & Outdoor – Perfect for powering electronics, lighting, and cooking gear.
  • Emergency Use – Reliable energy during blackouts or natural disasters.
  • Sustainable Living – Recharge with solar for clean, renewable energy independence.
Placeholder Image
Placeholder Image

What's Included

Everything you need is included with your product.

  • 1× EcoFlow DELTA 3 Max Portable Power Station (2048Wh)
  • 1× EcoFlow 400W Foldable Solar Panel
  • 1× AC Charging Cable
  • 1× Solar Charging Cable (XT60i)
  • 4 x Snap Hooks
  • 1× Protective Carrying Bag
  • 1× User Manual, Safety Guide, and Warranty Card
Placeholder Image
Placeholder Image
Placeholder Image
Placeholder Image
Placeholder Image
Placeholder Image

Warranty

  • Power Station: 5-Year Warranty (3 years standard + 2 years extended via EcoFlow App)
  • Solar Panel: 12-Month Warranty

EcoFlow DELTA 3 Max Portable Power Station

Specification Details
Net Weight 20.3+0.4kg
Dimensions (HWD) 494mm×239mm×305mm
Rated Capacity 2048Wh 51.2V 40Ah
Cell Chemistry LFP (LiFePO4)
AC Output 120V 60Hz 2400W total, 20A (x4) Max per port
X-Boost 3400W
USB-A Output USB-A (x1): 5V-3A/9V-2A/12V-1.5A, 18W Max
USB-C Output USB-C (x1): 5/9/12/15V-3A,20V--5A, 100W Max | USB-C (x2): 5/9V-3A, 15V-2A,30W Max per port, total 30W
Cigarette Lighter Output Port 12.6V, 10A, 126W Max
AC Input (Charge Only) 100-120V~15A 50/60Hz
Maximum PV Input Power(W) 500W
Charge Temperature 0°C-45°C (32°F-113°F)
Discharge Temperature -10 to 45°C (14°F-113°F)
Operating Humidity 20%-95%
Warranty 5-Year Warranty | *Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration.
Communication Method Wifi 2.4GHz/ Bluetooth5.0
EMC Class B
UPS <10ms

EcoFlow 400W Solar Panel

Specification Details
Rated Power 400W (+10W)
Open Circuit Voltage (Voc) 48V (Vmp 41V)
Short Circuit Current (Isc) 11A (Imp 9.8A)
Efficiency 22.6%
Cell Type Monocrystalline Silicon
Unfolded Dimensions 41.7 × 93.1 × 1.0 in (1058 × 2365 × 25 mm)
Folded Dimensions 41.7 × 24.4 × 1.0 in (1058 × 620 × 25 mm)
Weight Approx. 35.3 lbs (16.0 kg)
Waterproof Rating IP67
Warranty 12 Months
Placeholder Image
Placeholder Image

Frequently-Asked Questions

How long can the DELTA 3 Max power home appliances?

It can power a refrigerator for up to 20 hours or a CPAP machine for 40+ hours, depending on power draw.

Can it charge with solar panels?

Yes — supports up to 500W solar input and fully compatible with the included 400W solar panel.

Can the DELTA 3 Max be expanded?

Yes — it supports EcoFlow Smart Extra Batteries for additional capacity.

Does it work as a UPS?

Yes — provides <10ms automatic switch-over for seamless power continuity.

Is it safe to use indoors?

Yes — 100% safe and emission-free, perfect for use in enclosed spaces.