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
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Availability:
Only 10 left in stock, order soon!
Arrives
Monday, Dec 29
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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 6kWh, 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 6kWh 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.
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: 7200 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, Dec 29
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Similar Products
Top Amazon Reviews
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.
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Reviewed in the United States on August 23, 2025 by Stephen Cohrs
Style: DELTA Pro Ultra+Extra Battery
Was delivered on time and was easy to assemble. Charged great, but did not include the 30 amp RV plug and 30 amp wall connection. Had to purchase separately.
Reviewed in the United States on October 29, 2025 by Betty Jo Crenshaw
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.
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Reviewed in the United States on September 21, 2025 by Amazon Customer Amazon Customer
Style: DELTA Pro Ultra+Extra Battery
Bought this with 2 batteries for vanlife. Got it on sale and used prime card for more savings. Works as expected, runs my window AC, air fryer and everything else fine. The only issue is that charging from an EV charger never reaches 7200w. It only goes up to 6100w. An extra 1200w would be nice, thats 10% of extra charge (since i have 2 batteries) per hour. Update: Been a few months now so... 1. The charge controller makes a clicking sound when it detects power from solar panels, not loud or obnoxious but something to consider i guess? It clicks on/off in the mornings and evenings due to low solar irradiation. 2. The battery level indicator is only accurate for a few days. I think the batteries have to be charged to 100% once in a while to keep it accurate. I currently have it set to max discharge 5% and max charge 95%. The amount of power I use from an EV charger and the percent on the display is off significantly, so when I notice that, i just charge it to full. 3. The LCD display is constantly turning off/on when power is being drawn or stops being drawn. I wish there was a way to permanently turn it off since I live in a van (soon a truck camper 😬) and the bright as light is annoying af. 4. The standby power consumption is consistent with some youtubers measurements. I'm estimating it to be 5-10% per day. That is a big deal for vanlife but the 2 mppts, AC and EV charging makes up for it. My next camper will probably have 1600-2000w worth of panels. I currently have 1040w which would be fine if I didnt run AC or electric heat but I spoil myself. 5. While driving, if your panels become shaded temporarily, the input will go to 0w before going back to normal. If you're in shade too long, say under a lengthy tunnel or bridge or a row of trees, the charge controller won't start charging immediately after you're back in the sun. It takes several minutes, I haven't timed it. This sucks. That's all I can think of for now, hope it helps. Update 2: I just realized the inverter spits out a ton of heat while charging. In my truck camper now and I find that it heats up the entire space really quickly. This might not be the best product for van/camper/rv living since the AC has to fight all the heat this thing produces. May be in the winter I'll have a different opinion...? Update 3: I noticed when charging, the battery % jumps from the mid 50% up to 70% or so. Kinda weird how it can be so innaccurate, even after the update that supposedly fixed the problem of it not displaying the correct battery level. Sometimes I feel like the battery % that's displayed is totally off...seems like a serious flaw when trying to run this on a small solar setup. When the battery level that's displayed is too low and it hits your max discharge level, you won't be able to use it even if you suspect the system is wrong. I'm thinking about selling this thing and going back to building my own system. 🤷 Update 4: Let the system drain to about 4% then charged it fully. It only charged ~8 KWh to get to 100%. Which means about 3500-4000Wh was left, likely in the second battery. The voltage reading must be off so that's probably why it thinks there's only 4% left. Such a disappointment.
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Reviewed in the United States on August 4, 2024 by Larry L.
Style: DELTA Pro Ultra Battery
I like the Ecoflow system because it is plug and play. I had an electrician install the Ecoflow subpanel. This is not strictly necessary but with it things are seemless during a power outage. Everything just keeps working with no lag. I currently have five of these batteries and one inverter. I can expand this whenever I can afford it one battery at a time. What I have right now is enough to run my A/C for 48 hrs or my furnace for five days. I would give it five stars but for the price. If you have the knowledge you can build your own system for about half the price.
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Reviewed in the United States on December 9, 2025 by J