EF ECOFLOW DELTA 3 Ultra Portable Power Station with 400W Solar Panel, 3072Wh LiFePO4 Battery, 3600W (Surge 7200W) Output, Solar Generator for Home Use, Camping Accessories, Emergencies & RV Backup
Original price was: $2,599.00.$199.99Current price is: $199.99.
Product description
1 EV-Grade CTC Structure
2 24/7 Battery Protection
3 Extreme-Env Resistance
4 Class B EMC Certification
1 RV Camping
2 Living Room
3 Office
4 Kitchen
5 Garage
1 UPS
2 X-Quiet
3 Built to Last
1 4 Ways of Charging
2 Multiple Outputs
3 APP Control
More Choices About DELTA Series
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Customer Reviews
4.5 out of 5 stars 51
4.3 out of 5 stars 13
4.5 out of 5 stars 1,245
4.5 out of 5 stars 452
Price
$1,199.00$1,199.00
$1,499.00$1,499.00
$1,399.00$1,399.00
$2,299.00$2,299.00
Capacity
3072Wh
3072Wh
3600Wh
4096Wh
AC Output
3600W
3600W
3600W
4000W
X-Stream Fast Charging
✔
✔
✔
✔
Expandable Capacity
✘
✔
✔
✔
X-Fusion
✔
✔
✘
✔
Built to Handle It All. With 3600W continuous output (7200W surge) powered by X-Quiet 3.0 technology, DELTA 3 Ultra is ready for nearly all your essential appliances. From refrigerators and microwaves to heaters and power tools, this portable power station delivers reliable performance at home, in your RV, or off-grid.
<10ms UPS for Uninterrupted Backup. Never lose power when it matters most. DELTA 3 Ultra automatically switches to battery mode in under 10 milliseconds, keeping sensitive devices like PCs, Wi-Fi routers, and medical equipment running without interruption. No manual setup required—just instant peace of mind.
Silent as a Whisper. Enjoy quiet, dependable backup power at just 25dB under load. Thanks to advanced cooling design, DELTA 3 Ultra is whisper-quiet, making it ideal for overnight use, small apartments, and RVs where silence and comfort are key.
4 Ways to Charge Up. Stay flexible with four fast charging options: wall outlet, solar panels, car input, or EcoFlow Smart Generator. With EcoFlow’s X-Stream technology, DELTA 3 Ultra recharges quickly so you’re always prepared for power outages, road trips, or outdoor adventures.
Built to Last. Equipped with a durable LiFePO4 battery, DELTA 3 Ultra is built for 10 years of daily use. Its EV-grade CTC structure and 24/7 battery protection system ensure reliable performance in extreme heat, cold, or heavy loads—true resilience you can count on.
Please note that the DELTA 3 Ultra Power Station and the 400W Solar Panel will be delivered in separate packages.
6 reviews for EF ECOFLOW DELTA 3 Ultra Portable Power Station with 400W Solar Panel, 3072Wh LiFePO4 Battery, 3600W (Surge 7200W) Output, Solar Generator for Home Use, Camping Accessories, Emergencies & RV Backup
Fast, Reliable, and Convenient
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Amazon Customer –
Fast recharge at 800 watts
I use the Delta 3 Ultra for photography trips, camping, and as home backup it’s a beast. Charges super fast with my two 400W panels (I’ve seen 800W on sunny days), runs my fridge, induction cooktop, and gaming setup with no problem. Build quality feels premium, runs cool even under load, and setup was effortless. Perfect combo of portability, power, and reliability EcoFlow nailed it.The wheels make it easy to transport the capacity is just right so that I could use it the next day in time for more sun to recharge everything back up definitely a great off-grid power station and well worth the money if you use it to offset your electricity bill I can run two fridges all day and have enough power to last me through the night and recharge right back up as soon as the sun comes back out.
Katonya –
The Ultimate Power Combo: Delta 3 Ultra + 400W Solar Panel
I recently added the EcoFlow DELTA 3 Ultra with the 400W Solar Panel to my setup, and I’m beyond impressed. This powerhouse keeps my essentials running with ease — from the fridge and lights to my laptop and tools — and it charges back up incredibly fast with solar.The 400W solar panel unfolds easily and starts pulling in energy right away, even on cloudy days. Paired with the DELTA 3 Ultra, it gives me true off-grid freedom. I can keep my home powered during outages or take it camping and still enjoy all the comforts.What really stands out is how quiet and efficient it is. No fumes, no noise — just clean, reliable energy. The display is clear, setup was simple, and the app makes it easy to track everything in real time.If you’re looking for a serious all-in-one power solution for emergencies, travel, or daily use, the DELTA 3 Ultra + 400W Solar Panel combo is hard to beat. It’s strong, smart, and built for peace of mind.The DELTA 3 Ultra delivers 3,600 W continuous output and up to 7,200 W surge (according to spec) with X-Boost support up to ~4,600 W for heavy loads, all packed in.74.3 lb units that this 56 year old woman can easily move around the house
Outdoorsy –
Power your whole home and more
Until now, all of my power stations have been ultra portable. I purposely chose them because I use them camping and wanted to be sure what I could carry them. After a 12+ hour power outage in my neighborhood, I thought it was time to get something bigger to stay at home.At 3KWh battery capacity and 3600W power output, the DELTA 3 Ultra is a true option for powering devices at home. It can be used to power electric ovens, griddles, microwaves, air fryers and more. And, multiple at the same time. There are four 20A outlets and one 30A outlet that can be used with an RV. Also four USB ports – one of which is USB-A, so you can charge multiple phones, tablets, etc. at once. The 12V/Cigarette lighter port can be used with various DC appliances like refrigerators. Out of the box the power station was at 30% capacity. It took about 90 minutes to fully charge using the all outlet. By default the power station charges at 1600W and there is a switch at the back that must flipped to charge at slower speeds. The app is needed to change the charging speeds.I was able to make breakfast using an 1800W griddle and 1800W smart oven at the same time. After more than a half hour of use, there was still 70% of capacity. Then I was able to power a small space heater for 3 hours until the power station got to 6%. After charging up again, it easily powered the EcoFlow Wave 2 being use as a heater.This Delta 3 Ultra power station weighs over 74 pounds and it is a solid piece of hardware. The built-in wheels and telescoping handle make it a whole lot later to move around. It is easiest to move when it is standing tall. There is a step under the power station that must be stepped on for it to tilt onto the wheels to be moved.Note: this power station is not expandable, so you are maxed out at the 3KWh of capacity. Maximum solar input is 800W.
CryptoChaos –
So far so good but value keeps changing.
Seems to work fine. I like that it is continuous power and can turn off ports with the app. It Is not expandable with more batteries but this is probably to hit this price point and I was aware of this on purchase. Update: had a power outage and the continuous power worked just fine.
Otis Beaumont –
Great for home backup
Very beautifully designed and is very powerful.I am very pleased with this unit. Delivers great power and is easily transported. So quiet.
Verified Purchaser –
What a powerhouse…literally
My first Delta 3 from the latest lineup. Biggest power station I have, apart from my whole home backup, and this thing is super useful for powering large devices and loads. With 3 kwh of capacity, it can support a fridge during an outage for a long time. The built-in wheels make rolling this heavy thing around easy. Love the app and the physical design. It’s beauty and the beast in one!