EF ECOFLOW 12288Wh Power Station: Delta Pro Ultra X (1x Inverter + 2 x Batteries), 12000W Solar Generator for Home Battery Backup, Expandable to 180kWh, Outdoor & Camping Battery Power Supply
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Style: DELTA Pro Ultra X
Features
- Power Every Room. Every Day. EcoFlow DELTA Pro Ultra X delivers whole-home power with 1236 kW output and expandable 12180 kWh capacity. Run lights, AC, EV chargers, and moreall from one intelligent system. Scalable for any home, it keeps life running through blackouts and cuts grid costs year-round. Reliable, quiet, and always ready, its energy built for every moment that matters.
- Save All Day, Every Day. DELTA Pro Ultra X works nonstop to lower your energy bills. It automatically switches between solar, battery, and off-peak grid power for maximum savings. With EcoFlows Current Sense Transformer, every surplus watt from rooftop solar powers your home or EVnever wasted. Whether day or night, it keeps energy clean, efficient, and cost-effective 24/7. Real savings, automatically delivered.
- Reliable Power. Instant Response. When the grid fails, DELTA Pro Ultra X restores power in under 20 millisecondsfaster than a blink. Your fridge, Wi-Fi, and medical gear stay uninterrupted. Smart circuits auto-recharge and balance loads to extend runtime, while built-in storm prep keeps batteries full. No resets. No downtime. Just seamless reliability when it matters most.
- Professional-Grade Safety, Inside and Out. DELTA Pro Ultra X is built for uncompromising safety. EV-grade LiFePO4 cells last longer and stay cooler, protected by dual BMS and 100+ real-time safety checks. Its 3-level system shields power, connections, and loadsisolating faults while essentials stay powered. From freezing nights to 122 F heat, it self-heats or cools to perform flawlessly. Confidence engineered into every cycle.
- Power That Moves When You Do. DELTA Pro Ultra X redefines home energy freedom. Install it once, then unplug and take it when you moveno hardwiring required. Add DIY solar panels or plug-and-play batteries anytime, without tools or electricians. Ground-mount panels and reposition seasonally for optimal output. Its flexible, future-ready energy designed to move and grow with your life.
- The DELTA Pro Ultra X Inverter and the Extra Battery will be dispatched in separate packages
Brand: EF ECOFLOW
Wattage: 12000 watts
Fuel Type: Solar
Power Source: Solar Powered
Recommended Uses For Product: Camping, Commercial, Home
Item Weight: 292.7 Pounds
Voltage: 120 Volts
Output Wattage: 12000
Special Feature: Portable
Included Components: 2 DELTA Pro Ultra X Extra Battery, DELTA Pro Ultra X
Wattage: 12000 watts
Fuel Type: Solar
Power Source: Solar Powered
Recommended Uses For Product: Camping, Commercial, Home
Voltage: 120 Volts
Output Wattage: 12000
Additional Features: Portable
Engine Type: Inverter
Runtime: 2 hours
Total Power Outlets: 4
Starting Wattage: 12000 Watts
Running Wattage: 12000 Watts
Item Weight: 292.7 Pounds
Item Dimensions L x W x H: 26.6"L x 18.7"W x 9.06"H
Brand Name: EF ECOFLOW
Included Components: 2 DELTA Pro Ultra X Extra Battery, DELTA Pro Ultra X
Model Name: DELTA Pro Ultra X
Model Number: EFYJ751-BP
UPC: 842783193681
Manufacturer: ECOFLOW
Item Type Name: Portable Power Station
Unit Count: 3.0 Count
Warranty Description: 5 Year Manufacturer
Color: Black
Frequently asked questions
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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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Top Amazon Reviews
Do not order any thing from this company on Amazon. Neither Amazon nor Ecoflow will honor a return even if it's defective. I bought two batteries and one is defective. Even the professional Ecoflow guy could not get it running. Both Ecoflow and Amazon denied the return. Terrible.
Reviewed in the United States on March 19, 2026 by Amazon Customer
I'm going to give this three stars. I purchased the inverter + 2 batteries and the smart home panel 3, paid for their install service. First problem happened here - while they did get a licensed electrician out within their 7 day window, the electrician gave me a list of the additional stuff they will need to buy/add, adding almost $2000 to the install cost. Had I known it was going to add that much, I would have just installed it myself. Once installed, the electricians didn't know how to register it (minor issue). We did a quick test to make sure power cut over to the batteries, all was good, but the next day a real power outage happened. It was only for a few minutes, but it triggered an error and shut the whole thing down. Turns out the orientation of L1 and L2 legs of the power you need to be careful to carry that same orientation out to the smart connection box. Electrician quickly swapped it around, fixed that issue. The other star is removed for their customer Service. The hardware seems solid, but if you need to reach them it's like talking to an elementary school student in China who uses Google Translate. EcoFlow DESPERATELY needs to step up their game here. If they are looking for a very experienced enterprise support leader to start a customer support center here in the USA, give me a call. Seriously, pray you don't have a problem Because their support is HANDS DOWN the worst I have ever seen. Finally, the app. It's "mostly" there and polished, but there are still some areas that are confusing when you have the smart home panel in play. For example, if you purchase and use the Generator rectifier, you have to change settings at the battery level, despite lots of warning saying the settings are controlled through the smart Home panel 3, then you have to put in 1/2 of the generator value - for Some reason it doubles it (maybe due to using both sets of PV in?). Anyway, the app and software is better than many of their competitors (Growatt, I'm looking at you!) but it still has a decent way to go.
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Reviewed in the United States on March 4, 2026 by Matthew B.
I purchased two DPUX units and 8 batteries in Nov. 2025. By February 2026, one DPUX is dead and two batteries have voltage errors. Ecoflow refuses to ship new units until I return defective ones, costing me weeks in delays (I’m completely off grid). They’ve ’lost my case’, gave me the run around, and are doing everything they can to delay supporting me. Worst customer support experience I’ve ever had. BE WARNED they are horrible at customer support. Don’t waste your money.
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Reviewed in the United States on February 18, 2026 by Amazon Customer
I bought this system last year with the Smart Panel 3 and paid EcoFlow to do the installation. I still haven’t gotten EcoFlow to even set a date to do the installation (their “7 day install” promise is clearly a lie). I don’t know if the system works, but after fighting with EcoFlow over the last month, I would not recommend doing business with them. I could have built my own system from components and installed them myself faster.
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Reviewed in the United States on February 6, 2026 by BLane