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EF ECOFLOW DELTA Pro Ultra 6144Wh Power Station, 120/240V 7200W AC Output, Lifepo4 Home Battery Backup Expandable to 90kWh, 2H to Full Charge, Solar Generator for Home Use, Emergency, Camping, RV

  • Based on 256 reviews
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Availability: Only 10 left in stock, order soon!
Fulfilled by EcoFlow Inc.

Arrives Monday, Nov 17
Order within 17 hours and 47 minutes
Available payment plans shown during checkout

Style: DELTA Pro Ultra


Features

  • One Powers All. The unit of DELTA Pro Ultra whole house generator includes an inverter and a battery. One inverter supports 120V & 240V and has an exceptional 7200W output, allowing you to run almost any heavy household appliance, even a 3-ton central air conditioner. Triple the inverters for an incredible 21.6kW AC output, allowing you to live life to the fullest even during an outage. The electric generator achieves a total 7200W output even during charging.
  • Strong Power Security. Scalable from one battery of 6144Wh, two days of essential power, all the way to 15, it multiplies the energy to a gigantic 90kWh. For a standard North American household, that's over 30 days of essential power secured.
  • Multi Ways to Charge. One battery of 6144Wh can be fully recharged in 2 hours. Faster than any other 6kWh solar generator. Users can choose among electric vehicle piles, solar, wall outlets or outdoor generators for charging.
  • Customize Your Home Power. Use the EcoFlow app to priolritize specific circuits in your home, extending your backup even longer. For more than just blackouts, it intelligently analyses your home power usage to offset peak rates while utilizing solar to lower energy bills.
  • Uninterrupted Life. Online UPS with 0-ms transfer time, offering 24/7 protection for sensitive electrical devices against power disturbances or grid failure. All fans are off for the first half hour of outputting 2000W, giving you absolute silence for tranquility in everyday life.
  • Kindly remind that the product will be shipped in separate packages.

Brand: EF ECOFLOW


Wattage: 7200 watts


Fuel Type: Electric


Power Source: Battery Powered


Recommended Uses For Product: Residential


Item Weight: 182.9 Pounds


Voltage: 120 Volts (AC)


Output Wattage: 7200


Special Feature: Dual Voltage, Expandable Capacity


Included Components: DELTA Pro Ultra Battery, DELTA Pro Ultra Inverter


Brand: EF ECOFLOW


Wattage: 7200 watts


Fuel Type: Electric


Power Source: Battery Powered


Recommended Uses For Product: Residential


Item Weight: 182.9 Pounds


Voltage: 120 Volts (AC)


Output Wattage: 7200


Special Feature: Dual Voltage, Expandable Capacity


Included Components: DELTA Pro Ultra Battery, DELTA Pro Ultra Inverter


Color: Silver


Product Dimensions: 27.2"L x 18.9"W x 8.4"H


Model Name: EFYJ751-BP


Engine Type: 4 Stroke


Ignition System Type: Electric


Total Power Outlets: 3


Engine Power Maximum: 21.6 Kilowatts


Starting Wattage: 21.6 Kilowatts


Running Wattage: 7.2E+3 Watts


UPC: 842783132918


Manufacturer: ECOFLOW


Item Weight: 182.9 pounds


Item model number: EFYJ751


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 17

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • It’s not just for emergencies. Much better cost/benefit than a generator!
Style: DELTA Pro Ultra
This thing goes WAY beyond expectation! It automatically balances solar inputs and circuit outputs, charging the battery to peak and then shutting off the solar if you aren’t loading it with household circuits. If battery charge drops below your pre-set emergency battery storage level, it pulls electricity from the grid to fill in the gaps. You’re covered 24/7, one way or another. I’ve been eyeballing it and testing things and on a sunny summer day, overnight draws are replaced and the batteries topped off by noonish. Right now, my whole house is running through it with the exception of the A/C and the circuit that the unit is plugged into in order to draw grid power. I have more solar cells coming and a second battery, at which point I expect the electric company to start wondering why I’m selling them electricity but not buying any. ... show more
Reviewed in the United States on August 23, 2025 by Stephen Cohrs

  • I love my DPU EB
Style: DELTA Pro Ultra Battery
Our son is a huge ecoflow fan so he recommended for us to get the ecoflow delta pro ultra! He has an extra inverter so it turns out that all we needed to buy was the battery itself! It’s great since we got to save money instead of buying the whole system! The battery is very heavy but at 110lb or so we aren’t too old to move it quite yet! (In our 70s). Our son recommended us to use it to backup our refrigerator since we don’t yet have the smart panel installed so we can’t quite tie it into our home, and our HOA don’t allow for solar panels, but my son and I ran a test and this thing is running our refrigerator as we speak and it’s been two and half days! Still got around 7% left! It’s a game changer for retiree like myself because I travel a lot with my wife and often gone for weeks, so being able to back up my fridge for so long really gave me the peace of mind. I also own some rental property and to be able to power up a tenant’s home during an outage is also quite useful! Nothing make happier tenants than light and warmth. Lastly, my beautiful grandkids love to play with this big instrument. My naughty son even shove his sister away just so he can play with it. She keep saying “sheer!” I think she wants to play too. ... show more
Reviewed in the United States on September 21, 2025 by Amazon Customer Amazon Customer

  • Back up power for hurricane storms!
Style: DELTA Pro Ultra+2x400W
Amazing! This is the 2nd one we have purchased this one was sent to my aunt in New Orleans for hurricane storm backup power. It was easy to set up. Perfect amount of power to get through the storm and then can start charging up with the solar panels. This is great because you can continue to add to this system if you find yourself needing more battery. Quality product. ... show more
Reviewed in the United States on July 29, 2025 by Carol Brucker

  • Great Product .. If you can manage to receive it
Style: DELTA Pro Ultra+Smart Home Panel2
Absolutely Amazing product! However Ecoflow ships with Fed Ex and requires signatures .. I have ordered 3 times totaling 4 deliveries .. The first delivery that I took the day off for failed to deliver .. FedEx said they attempted to deliver it however I was on the porch all day and my cameras show proof there was never a FedEx truck on my street that day.. That package was not delivered for 2 additional days that I needed to stay home for due to "Signature required" the Second delivery was once again "Signature required" My delivery window was between 10 am and 4 pm So I took the day off.. however at 12:01 am the next morning FedEx once again showed a failed delivery .. their support line insisted a driver attempted to deliver it .. once again cameras proved otherwise.. That brings us to the third and final delivery ... The package was set to deliver yesterday between 11 and 4 .. so I took the day off , at 2 pm I received a notification that my package was being held " At my request" .. I called Fed Ex again and was informed the package was held at my request with the reasoning that the package was not in Wichita ( My City ) to be delivered .. after an hour on the phone they agreed to have the package left at a Local FedEx office store for pick up ... I went there to get it this morning and was told they did not have it and would not get it due to the weight and I was given the number to the local FedEx ground distribution center .. I called they told me they had the package and that I could come pick it up from them at 10 am .... I drive 15 miles to get the package wait 30 minutes with my car actually inside a FedEx distribution center only to be told ... "They do not have my package and it must be on the truck" ...... So now I have lost a 4th day of pay due to Ecoflow's shipping decisions .... this whole process has been absurd and very draining ...... EcoFlow's product delivers everything they claim .... if you can manage to get what you paid for. .... I would not suggest anyone order from Ecoflow unless you can devote a solid week to be at home for delivery or somehow arrange your own shipping. Ecoflow's shipping choices will lead me to likely never purchase from them again. ... show more
Reviewed in the United States on June 5, 2025 by J Robinson

  • Good quality brand name unit
Style: DELTA Pro Ultra Battery
Works great and holds charge for longer than expected. Wish they were more inexpensive.
Reviewed in the United States on October 12, 2025 by Kevin Miller

  • Lots of power + plug and play
Style: DELTA Pro Ultra Battery
I purchased this battery to go with my Delta Pro Ultra. I live where the power goes out regularly enough it's important to be able to go a few hours without power or to provide my own. I sometimes work from home and I actually lost power today. I ran this battery attached to the Delta Pro Ultra and it got me through the power outage with plenty to spare. I was able to keep all my technology items going and keep working through the outage. Other than weighing a ton and being a lot of weight to handle on your own, these are pretty simple devices. Simply plug it in to the delta pro ultra stack with the provided jumper cable and away you go. You might be able to get tax benefits/credits (will need to do your own research) based on the amount of power one of these batteries provides. I intend to do this and keep buying batteries, as I can, to max out the stack at 5. These are pretty expensive is my main complaint so time your purchases with major shopping events like prime day and you can get a pretty decent discount here on Amazon. Amazon isn't the only place that carries these but the prices here seem to track with other places as sales happen at the same time. NOTE: you do need the Ecoflow Delta Pro to use this. I am not aware of a way to use this battery any other way. ... show more
Reviewed in the United States on February 13, 2025 by JLPDX

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