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EF ECOFLOW

EF ECOFLOW 4096Wh Delta Pro 3 Power Station With 3200W Dual Fuel Generator

  • Based on 8 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by EcoFlow Inc.
Arrives Friday, Sep 11
Order within 14 hours and 43 minutes
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Style: 3200W&4kWh


Features

  • [Reliability Lasts Longer] Utilize the EcoFlow app for real-time alerts, including CO concentration, high & low-temperature warnings, engine oil alerts, and overload alerts. All features trigger automatic shutdowns for enhanced safety (excluding fuel alerts). Enjoy a longer 3-year warranty period for peace of mind in both use and purchase.
  • [Forget Refueling] Featuring a 4096Wh LFP battery capacity, expandable to 48kWh with extra batteries or smart generators, providing 2-4 days of whole-home backup power. With 7 unique and 18 combo charging methods like AC wall outlets, solar panels, gas generators, EV charging piles, or the EcoFlow Smart Home Panel 2, you can forget fuel worries.
  • [Dual Fuel, Double Assurance] With LPG and gasoline, this dual fuel generator ensures quick access to backup power, alleviating concerns about fuel shortages during emergencies. Easily connect a 20 lb propane tank for up to 24kWh of power. The smart engine produces 8kWh from a single gasoline tank, providing 8 hours of power for home appliances at 25% load.
  • Kindly note that the power station and the Dual Fuel Generator will arrive in individual packages.

Description

At night, once the power consumption reaches a certain level, the smart generator will automatically start to replenish power. Monitor the remaining power of the EcoFlow DELTA Pro 3 energy storage in real-time, predict future power consumption, measure power generation from PV, and auto-recharge it in time. Recharge the EcoFlow DELTA Pro 3 with PV panels, automatically prioritizing charging for savings and environmental benefits while minimizing noise from continuous generator operation. It reversely supplies power from the EcoFlow DELTA Pro 3 to the generator battery, waking up the generator and starting the charging process simultaneously. DELTA Pro 3 DELTA Pro 3+400W DELTA Pro 3 Extra Battery DELTA Pro+3 Extra Battery

Brand: EF ECOFLOW


Wattage: 4096 watt-hours


Fuel Type: Electric


Power Source: AC


Recommended Uses For Product: Camping, Residential


Item Weight: 115 pounds


Voltage: 240 volts_of_alternating_current


Output Wattage: 4000


Special Feature: Portable


Included Components: DELTA Pro 3, Dual Fuel Generator


Wattage: 4096 watt-hours


Fuel Type: Electric


Power Source: AC


Recommended Uses For Product: Camping, Residential


Voltage: 240 volts_of_alternating_current


Output Wattage: 4000


Additional Features: Portable


Engine Type: 2 Stroke


Ignition System Type: Electric start


Tank Volume: 4 liters


Total Power Outlets: 6


Engine Power Maximum: 1900 watts


Starting Wattage: 1900 watts


Running Wattage: 3200 watts


Frequency: 60 hertz


Runtime: 8 hours


Color: Grey


Material Type: Steel, Aluminum, Cast Iron


Brand Name: EF ECOFLOW


Included Components: DELTA Pro 3, Dual Fuel Generator


Model Name: portable generator


Model Number: ‎EFD521-GE305


UPC: 842783153258


Manufacturer: EcoFlow


Item Type Name: portable generator


Manufacturer Part Number: ‎EFD521-GE305


Warranty Description: 5 Year Manufacturer


Item Weight: 115 pounds


Item Dimensions L x W x H: 16.16"L x 13.43"W x 27.38"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 11

This item is non-returnable:

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

    • Get a better generator
Style: 3200W&4kWh
I love the DP3, but regret getting the gas generator. The generator is probably nice, but after reading the specifications more it doesn't actually give much sustainable power, nowhere near 4000w. The DC charging seemed like an advantage but the DP3 would be able to pass through AC generator power instead of having to invert it from DC. Reviews show that the battery in the generator is puny and that automatic start isn't reliable even in ideal conditions. I wouldn't expect the generator to be useful for most people for more that a year after used once with gasoline, and I say this from having owned about ten generators and dealing with their inevitable carburetor issues. Any small diesel generator (even 2000w) would be a better option. ... show more
Reviewed in the United States on July 20, 2026 by slkdk
    • Systemic Failure: FedEx Delays, Hidden Items (Not Just Me), and Arrogant Customer Service
Style: 3200W&4kWh
I purchased a $3,400 Delta Pro 3 system. The experience was a disaster, and after researching other reviews, I realized I am not the only victim. 1. Chronic FedEx Failure: Multiple recent reviews (Feb, March) complain about FedEx delays and ignored delivery windows. One user specifically stated, "I set delivery windows and they were not respected." This happened to me too. I missed Easter Sunday with my family because FedEx ignored the 12-4pm window. To add insult to injury, after 4 PM, FedEx continued to state on their webpage that my unit would be delivered by "end of day." I was stuck waiting until around 8 PM. Then their instructions went blank while they decided what to do. The next morning, they said 9:40 AM – 12:40 PM, so I had my wife call off work to meet the time. By 12 PM, they switched it to 12:40 – 4:40 PM. Wow!!! EcoFlow contracted FedEx and is therefore responsible for these systemic failures. They knowingly failed to correct the problem at the expense of us customers and failed to meet Amazon's policies. 2. Hidden Items: My main unit was hidden until the day of delivery, despite an April 13 promise. Other users report "missing solar panels" and "still waiting on packages." 3. Arrogant Customer Service & Forced Escalation: When I reached out to explain the severe disruption (missing a major holiday and my wife's work shift), they did not even attempt to consider my perspective. Instead of listening, they immediately "blew me off" with a generic "policy" statement. I explicitly offered to withhold this 1-star review if they would simply escalate the issue to a manager and offer a fair settlement. They ignored that offer completely, refusing to engage or acknowledge the reality of the situation. It is clear they view customers as numbers, not people, and have no intention of resolving valid complaints unless forced. 4. Seller Negligence: EcoFlow continues to use a carrier that consistently fails their customers, yet they claim "fulfillment issues are not due to the seller." This is a lie. They knew there were systemic issues and still chose FedEx! They are responsible. Conclusion: Do not buy from EcoFlow if you value your time or dignity. They have a proven pattern of using a negligent carrier, hiding items, and refusing to listen to valid complaints. Amazon needs to audit their logistics and customer service immediately. ... show more
Reviewed in the United States on April 7, 2026 by Johnnie
    • Do not buy this generator or expect the company to honor its warranty.
Style: 3200W&4kWh
The generator intake and air filter failed at approximately 50 hours of use. The engine ingested sand and seized. EcoFlow refuses to honor the warranty. Operating a generator in the desert—which comprises roughly one-third of the earth's land mass—is a standard expectation for remote power equipment. If a product cannot be relied upon in these conditions, it is the worst $4,300 I have ever spent. No reasonable person would expect a generator to fail under these conditions. For comparison, I have run my Honda EU 2200i for in excess of 1,000 hours in more austere conditions. The core issue is the generator’s intake design, which faces the ground. This creates a severe environmental particulate ingestion vulnerability, making this a design and engineering defect rather than an operator error. ... show more
Reviewed in the United States on August 13, 2026 by Jon

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