Customer—October 28, 2025
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. Read more
Precious—October 20, 2025
The media could not be loaded. 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 Read more
S. G.—January 1, 2026
My use case for this is to act as a battery backup with grid passthrough for electronic critical loads. It works very well for the uae case, however, there are a few things that really hold it back. These may or may not pertain to your use cases. Pros 1. A good value when on sale, otherwise not a great choice. 2. Works alright for a large UPS. 3. Fast charging, grid pass through. 4. Moderate cutover time but not the fastest, a good UPS still beats it. Cons 1. Must use the app, no other way to configure, which is not great. 2. No open api specs for monitoring. 3. Shows invalid grounding when running on battery, even when plugged in. 4. Basically requires and Internet connectiom and unfriendly to off grid no internet or phone setups. I did not check the waveform generated on battery output. Read more
Outdoorsy—November 5, 2025
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. Read more
