SKU: 42817544304

EcoFlow DELTA Pro Ultra Inverter with Batteries

Sale price$1844.55 Regular price$2049.50
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Description

EcoFlow DELTA Pro Ultra Inverter with BatteriesEcoFlow DELTA Pro Ultra The most powerful whole home backup solution. Month long power security 6 90kWh Capacity Take home power dependability to another level with up to 90kWh battery capacity. For a standard household, that's over 30 days of essential backup power to keep appliances like lights and refrigerators running strong (time may vary). Stackable and space saving, it fits comfortably into a garage or utility closet. One unit covers every

EcoFlow DELTA Pro Ultra

The most powerful whole-home backup solution.

Month-long power security

6-90kWh Capacity

Take home power dependability to another level with up to 90kWh battery capacity. For a standard household, that's over 30 days of essential backup power to keep appliances like lights and refrigerators running strong (time may vary). Stackable and space-saving, it fits comfortably into a garage or utility closet.

One unit covers every appliance

7.2kW-21.6kW, 120V & 240V Output

With a 7.2kW output, EcoFlow DELTA Pro Ultra effortlessly runs even energy-hungry household items, like a 3-ton central air conditioner*. For more power, pair up to 3 inverters with the EcoFlow Smart Home Panel 2 to unlock 21.6kW AC output. Plus, X-Fusion technology guarantees a constant 7,200W output no matter the load.*

One hour of solar for one day of power

5.6kW-16.8kW Solar Input

By leveraging High and Low-PV technologies, a single inverter sets new portable solar input standards with 5.6kW max input*. Connect three inverters for a monumental 16.8kW, gaining a full day's home energy in just 60 minutes. Whether you prefer portable or rooftop solar, achieve true energy independence.

Flexible Solar Systems

With its flexible plug-and-play design and unrivaled solar input, EcoFlow DELTA Pro Ultra empowers you to tailor your solution to your energy needs. The included PV locking feature assures safety and a solid energy connection.

Rooftop Solar Systems

The system supports both portable and rooftop solar systems seamlessly, allowing you to customize your backup power source according to your setup and preferences.

Always in charge - With a Generator or EV pile

You're spoilt for choice with EcoFlow DELTA Pro Ultra's charging options. In addition to solar and the grid, you can power up using a gas generator or even your EV charging pile. Industry-leading fast charging speeds of 8,800W let you top up two batteries in just 2 hours.

You won't even notice the grid was down

0-ms Downtime, Whisper-Quiet Backup

Imagine a world where power outages go unnoticed. With EcoFlow DELTA Pro Ultra's online UPS, you'll experience uninterrupted power flow, protecting your vulnerable electronics around the clock. For loads under 2000W*, it's completely silent with a noise level of 0 dB, ensuring peaceful nights without backup noise.* (For up to 30 minutes)

Peace of mind with an advanced design

EcoFlow X-Cooling

Featuring a proprietary cooling structure, EcoFlow DELTA Pro Ultra ensures prolonged lifespan and reliable performance across extreme temperatures.

Boost Performance with BMS

Our state-of-the-art LFP battery technology combined with an advanced Battery Management System (BMS) regulates vital data, ensuring safety, longevity, and high performance. Each battery supports 3,500+ cycles before capacity drops to 80%, and still powers on beyond that.

Powers through the most challenging situations

EcoFlow DELTA Pro Ultra is built to endure grueling conditions, from extreme weather to freezing winters, safeguarding your power security no matter what.

Features

  • 7.2kW-21.6kW output with up to 3 inverters
  • 5.6kW-16.8kW solar input with up to 3 inverters
  • Online UPS with 0-ms transfer time
  • Prolonged lifespan with proprietary cooling structure

Specifications

EcoFlow DELTA Pro Ultra Inverter

  • General
    • Net Weight: 70 lb
    • Dimensions: 27.2 in x 18.9 in x 8.4 in
    • Wi-Fi Frequency: 2.412-2.462 MHz / 2.422-2.452 MHz, Max output 0.3597W
    • Bluetooth Frequency: 2.402-2.480 MHz, Max output 0.0109W
  • Output
    • AC Output (Discharging): Pure Sine Wave, 7,200W total, 120V/240V ~ 60Hz
    • AC Output (Bypass): 100-120V ~ 30A total, 50/60Hz
    • USB-A (x2): 5V ~ 2.4A, 12W per port, 24W total
    • USB-C (x2): 5/9/12/15/20V ~ 5A, 100W per port, 200W total
    • DC Output: 12.6V ~ 30A, 378W max
  • Input
    • AC Input (Charging): 100-120V ~ 15A; 200-240V ~ 12.5A, 50/60Hz
    • AC Input (Bypass): 100-120V ~ 15A, 50/60Hz (Duration < 3 hrs when current > 12A)
    • Power Input/Output: 100-120V ~ 30A; 200-240V ~ 30A, 50/60Hz
    • High-PV: 80-450V ~ 15A max, 4,000W max
    • Low-PV: 30-150V ~ 15A max, 1,600W max
  • Other
    • Discharging Temperature: -4°F to 113°F
    • Charging Temperature: -4°F to 113°F
    • Storage Temperature: -4°F to 113°F (Optimal: 68°F to 86°F)
    • Altitude: 9,842 ft
    • IP Rating: IP54
    • Noise Level: ≤30 dB
    • UPS: Backup < 20 ms; Online 0 ms
    • Communication: Bluetooth, Wi-Fi, 4G

EcoFlow DELTA Pro Ultra Battery

  • SKU: EFDeltaProUltra-BP-US
  • Ports: 2 x Battery port
  • Capacity: 102.4V ⎓ 60A, 6,144Wh
  • Cell Material: LFP (Lithium Iron Phosphate)
  • Cycle Life: 80%+ SOH after 3,500 cycles at 0.5C/0.5C at 25°C (77°F)
  • Ambient Temperature: -4°F to 113°F
  • IP Rating: IP54

Warranty

Energy Systems Central Stores is an authorized retailer of EcoFlow products. We pass on EcoFlow’s manufacturer 3-Year warranty to you.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42817544304

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4.6 ★★★★★
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A
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anddoggies2
Grantham, US
★★★★★ 4
Cozy but...
Size: Medium, Color: Light Grey Cotton Twist, Size: Medium, Color: Light Grey Cotton Twist
These slipper socks are nice but could be nicer. The sock portion does Not have a heel; they are tube socks with a footpad sewn on. This means there is a little tightness getting your foot past the turn and then you end up with a roll of sock over your upper foot. Once that is all made comfortable, you are good to go. I wear mine indoors and out for short trips to the patio and backyard. The sole material looks to be durable enough to last more than one season with this type of use. The footbed itself has just the right amount of padding: not so much that the foot can slid to the side and not so thin you can feel the joints in a tile floor ;-)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 12, 2025
R
Verified Purchase
Rose in the Desert
West Palm Beach, US
★★★★★ 3
Size down. Thin soles are cold.
Size: Small, Color: Light Grey Ragg Wool
The ragg wool is warm and they seem well made. The foot sizing is very long. I'm a 7.5 to 8 always. The choice was 6-7 or 8-9. The 8-9 is more than 2 inches too long. I'm afraid they will cause a fall. Also know that the cushioning is not as pictured. It is only half the depth of the leather sides. When you stand on anything but carpets, you feel the cold floor. This is all due to the gravity on earth.
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Reviewed in the United States on December 19, 2025
A
Verified Purchase
Adventure Dave
Pawtucket, US
★★★★★ 5
Best slippers, beware Sizes may be off.
Size: Medium, Color: Charcoal Ragg Wool
I LOVE these sock moccasins shoes or whatever they are. I purchased 2 pair in different colors and the upper sock material was a significantly different material in its weave density and stretchyness. (blue more thin and stretchy than grey). I wear blue ones indoors, and the grey ones stay in the car for long car trips. Sizing: both pair I bought say 7-9mens 9-10women -- In how they actually fit they are 9-10 mens. The soles are leather with a thin bit of soft foam, in winter I can walk around in snow in them and the cold doesnt get through. Not that you should walk in snow with them since the leather is like a suede so it gets gross. You can put them through the washing machine and it makes them look good as new.
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Reviewed in the United States on January 1, 2021
A
Verified Purchase
Anne Colestock
Battle Creek, US
★★★★★ 1
Is this a joke slipper?
Size: Large, Color: Charcoal Ragg Wool
Bought size large (men’s 9-10) this past year for my husband for Christmas. These are not made to fit a human being unless it is a severely skinny person with very very long feet. The feet are too big for him but the ankles are so narrow he can’t put them on, and my husband is actually very lean, he teaches martial arts for a living 6 days a week. I don’t believe I’ve ever seen a person in my entire life who simultaneously has long enough feet combined with skinny enough legs to fit these slippers. For a laugh we got our skinniest female friend to try them on and she could just barely squeeze her legs into them. I think she described it as “squeezing her skin off of her legs” or something like that, and then of course the feet were comically huge for her because she is so petite. We never got around to returning them and I just found them last night and remembered the whole incident. I tried to fit my forearm inside them but could not fit much past the wrist because they were too tight and I had a good laugh. I think I might cut them up and use the pieces to patch his old slippers that actually fit. To be fair we actually got a lot of laughs out of the product so it wasn’t a total waste. Buy them as a joke or save your money.
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Reviewed in the United States on June 10, 2018
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Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Perfect
Size: Small, Color: Light Grey Ragg Wool
So comfy warm and easy to travel with
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Reviewed in the United States on April 14, 2026

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