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EcoFlow Delta 3 Plus Review
Enough capacity to matter, EcoFlow charge speed, and room to grow.
The short version
The Delta 3 Plus is the model that answers the main criticism of EcoFlow — that you pay for speed and give up capacity. It sits in the range where a power station stops being a gadget, keeps the fast charging, and expands.
Against Bluetti it will still generally cost more per watt-hour. What you get back is turnaround time and the best app in the category.
On the numbers. Capacity and output below are manufacturer specifications. Expect 80–90% of rated capacity in real use after inverter losses, and less in cold weather.
What it will run
| Load | Draw | Rough runtime |
|---|---|---|
| Full-size fridge | 150W avg | Most of a day |
| CPAP | 40W | Multiple nights |
| Starlink Mini | 40W | Around a day |
| Router + laptop + lights | 120W | Most of a day |
| Space heater | 1,500W | Under an hour |
That last row is the useful one. Electric heat is out of reach for any portable battery — see power station vs generator.
Who it is for
- Outage backup where power flickers back. Fast charging turns a brief restoration into a full battery.
- Van and RV use with regular shore power or alternator charging. See off-grid & RV.
- Anyone who wants one unit for both trips and emergencies.
Alternatives
More watt-hours for the money: Bluetti AC200L or OUPES. Cheaper and smaller: Delta 2. Bigger, for whole-home: Bluetti Apex 300. Undecided? Use the picker.