Head to head
EcoFlow DELTA Pro 3 vs EcoFlow DELTA Pro
EcoFlow · Power Station
EcoFlow DELTA Pro 3
~$2,399
4,000 W / 8,000 W surge · up to furnace blower, sump pump or a window AC
EcoFlow · Power Station
EcoFlow DELTA Pro
~$2,799
3,600 W / 7,200 W surge · up to fridge, freezer and the essentials
Quick takeThe EcoFlow DELTA Pro 3 lists about $400 lower; the EcoFlow DELTA Pro 3 puts out more sustained power (4,000 W).
| Spec | EcoFlow DELTA Pro 3 | EcoFlow DELTA Pro |
|---|---|---|
| Approx. price | ~$2,399 | ~$2,799 |
| Type | Power Station | Power Station |
| Fuel | Battery (LiFePO4) | Battery (LiFePO4) |
| Running / output watts | 4,000 W | 3,600 W |
| Starting / surge watts | 8,000 W | 7,200 W |
| Battery capacity | 4,096 Wh | 3,600 Wh |
| Expandable to | 48,000 Wh | 10,800 Wh |
| Noise | 30 dB | — |
| Runtime | Fridge (~150W): ~23 hrs on base unit | Fridge (~150W): ~20 hrs on base unit; ~60 hrs with two extra batteries |
| Outlets | 7x AC incl. 120/240V 30A L14-30 & 30A TT-30, 2x 140W USB-C, 2x USB-A | 4x 120V 20A AC, 1x 120V 30A AC, 2x 100W USB-C, 4x USB-A, 12V car, 30A Anderson |
| Fuel tank | — | — |
| Weight | 113.5 lbs | 99 lbs |
| Transfer-switch ready | Yes | No |
| Warranty | 5-year | 3-year standard, 5-year with app registration |
Highlighted cell is the better figure for that row.
Owner pros and cons
EcoFlow DELTA Pro 3
- +True 4000W / 8000W surge with 240V L14-30 - runs well pumps and dryers solo
- +Much quieter than the original DELTA Pro, according to an owner who upgraded
- +Expandable to 12kWh per unit, 48kWh system - grow as budget allows
- +10ms UPS keeps servers and fish tanks alive through switchover
- +2600W solar input recharges it in a real morning of sun
- +Massive 2026 price drops - routinely ~$2,000-2,400 vs $3,699 launch
- −113.5 lbs; wheels help but two people needed for stairs or truck beds
- −Fan noise ramps sharply during 1800W+ fast charging
- −Warranty has been refused on units bought from EcoFlow's own Amazon storefront
- −Firmware has been rocky: a 2026 build was withdrawn after release
EcoFlow DELTA Pro
- +3,600W continuous runs a fridge, furnace and well pump together
- +Dedicated 120V 30A outlet for an RV cord or manual transfer switch
- +1,600W solar input accepts up to 150V strings
- +LiFePO4 rated 3,500 cycles to 80%
- −Fan noise runs 48-60 dB at a meter under load, loud for indoor use
- −Not 120/240V by itself; a Double Voltage Hub is needed for a 240V home panel
- −Slower AC recharge than the Pro 3 (1,800W on 120V)
- −Extra batteries cost nearly as much as the base unit
- −Older platform, so EcoFlow pushes buyers toward the Pro 3