Our verdict: The EcoFlow DELTA 3 Plus ranks 6th of the 10 portable power stations we compare, with 8.8 out of 10.
EcoFlow DELTA 3 Plus
8.8/10
The EcoFlow DELTA 3 Plus is a 1,024Wh LiFePO4 power station with 1,800W of output and four UK sockets. It suits campers, van owners and anyone who wants power-cut backup for a router, laptop or fridge.
1,024Wh with 1,800W output, and X-Boost for some loads up to 2,400W
Full charge from the mains in roughly an hour, and up to 1,000W of solar input
Eleven outputs including several UK sockets and USB-C
Five-year warranty and expandable to around 5kWh with extra batteries
Keep in mind
Heavier than the 1kWh units from DJI and Jackery
X-Boost reduces the voltage, so heating appliances run below full power
Fan noise is noticeable under heavy loads or fast charging
Why the EcoFlow DELTA 3 Plus scores 8.8
Each bar shows where it places among the 10 portable power stations in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
How happy owners are5th of 10
How many rated it5th of 10
How new it is6th of 10
Why it sits behind the Bluetti AC70
The Bluetti AC70 (8.9) beats the EcoFlow DELTA 3 Plus (8.8) because it leaves owners a little happier.
About the EcoFlow DELTA 3 Plus
The DELTA 3 Plus stores 1,024Wh in a lithium iron phosphate (LiFePO4) battery that EcoFlow rates to keep at least 80% of its capacity after 4,000 cycles. It delivers 1,800W continuous pure sine wave power, with a 3,600W surge. An optional X-Boost mode runs compatible appliances rated up to 2,400W.
There are eleven outputs: four 3-pin AC sockets, two USB-A, two USB-C, a 12.6V car socket and two DC outputs. The mains input is up to 1,500W, which fills the battery in about 56 minutes. Two solar inputs take up to 500W each, 1,000W in total, and it can also charge from a vehicle alternator while you drive.
It works as a UPS with a switchover of about 10ms, and you control it over Wi-Fi or Bluetooth from the EcoFlow app. The app can cap charging at 80% or 90%, which one UK review recommends if the unit stays plugged in. Extra batteries connect to expand the system to around 5kWh. The box holds the power station, an AC charging cable, a car charging cable, a DC5521-DC5525 cable, manuals and a warranty card, though contents can vary by bundle.
What owners report about the EcoFlow DELTA 3 Plus
Owner feedback we could open for this exact model was thin. What we found came from a UK review site that quotes UK owners.
Owners who use it as a UPS say it has covered several power cuts a year and does what it should, and a van owner says it has never let them down. One owner says fan noise has not been a problem for them.
The complaints are few. One owner had the AC sockets switch off at random over a few weeks, lost trust in it as a UPS, and said EcoFlow support could not explain the cause. Another expected the Time-of-Use mode to power their house circuits, but it only supplies devices plugged into the unit.
Who the EcoFlow DELTA 3 Plus suits
It suits people who want one 1kWh unit that charges fast and can grow. Solar users get the most from the 1,000W input, and the UPS mode and app help with power-cut backup for small loads. Campers and van owners get four UK sockets and a car socket.
Look elsewhere if weight matters: the DJI Power 1000 Mini and Jackery Explorer 1000 v2 are lighter at this capacity. Heating appliances run below full power in X-Boost mode, so a kettle or heater needs the DELTA 3 Max Plus. If you want quiet, the Jackery Explorer 1000 v2 is the better fit. Power tools with high start-up surges suit the OUPES Mega 1.
Questions about the EcoFlow DELTA 3 Plus
Is the EcoFlow DELTA 3 Plus worth it?
Yes, for most people who want a 1kWh unit. It has 1,024Wh, a roughly 56-minute mains charge, 1,000W solar input, a UPS mode and a five-year UK warranty. It is heavier than some rivals and the fan can be loud under heavy loads.
My EcoFlow DELTA 3 Plus isn't charging. What can I do to fix this?
Check the charge limit in the EcoFlow app first, as it can be capped at 80% or 90%. On solar, overcast UK skies slow charging, and shading only affects the shaded input. If it still won't charge, contact EcoFlow support.
What is the battery capacity of the EcoFlow DELTA 3 Plus?
1,024Wh. It is a LiFePO4 battery rated to keep at least 80% capacity after 4,000 cycles. Extra batteries can take the system to around 5kWh.
Does the EcoFlow DELTA 3 Plus really give 3,600W?
Only as a short surge. Continuous output is 1,800W, and X-Boost runs compatible appliances rated up to 2,400W.
Can the EcoFlow DELTA 3 Plus be used as a UPS?
Yes. It switches to battery in about 10ms when mains power drops. Owners say it has covered power cuts, though one reported sockets cutting out.
Other portable power station picks
The other badge winners in our portable power stations ranking.
Every score here comes from our ranking model; no editor sets the order. We haven't read the review sites for this guide yet, so for now it is led by owners. It ranks products by how happy owners are, holding back any product few owners have rated until more agree. How many rated it and how new it is only settle close calls, and value for money earns its own badge rather than a higher place. We compared 15 models for this guide before settling on these ten.
Brands can't pay to be included or to move up. We last checked these picks in November 2026.
