EcoFlow DELTA Pro 3 vs EcoFlow DELTA 3 Max
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
EcoFlow DELTA 3 Max costs $2600 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro 3 holds 100% more energy (4096Wh vs 2048Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro 3 has 3200W more surge headroom (8000W vs 4800W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 3 Max is 57.9 lb lighter (55.1 lb vs 113 lb).
The EcoFlow DELTA Pro 3 is poor value on paper: 1.11 Wh per dollar versus 1.86 for the EcoFlow DELTA 3 Max. Only worth it if you specifically need its higher output or 240V capability — otherwise you're paying a large premium per watt-hour.
The most complete large unit here. 4096Wh, 4000W, 8000W surge and 2600W of solar — it does everything the F3800 does with less weight.
Best for: Whole-home backup buyers who want maximum solar recharge speed.
Where it falls short:
- $3,699 is a serious investment
- Overkill unless you're backing up a whole home
The value leader in the 2kWh class. Same 4800W surge as the DELTA 2 Max at $500 less, with 1000 more cycles.
Best for: Home backup buyers who want compressor-starting surge without paying flagship prices.
Where it falls short:
- 55 lb is a two-hand lift
- Only marginally lighter than heavier rivals
| Spec | EcoFlow DELTA Pro 3 | EcoFlow DELTA 3 Max |
|---|---|---|
| Price | $3699 | $1099 |
| Capacity | 4096 Wh | 2048 Wh |
| Continuous output | 4000 W | 2400 W |
| Surge output | 8000 W | 4800 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 4,000 |
| Weight (lighter wins) | 113 lb | 55.1 lb |
| Max solar | 2600 W | 1000 W |
| Recharge time (faster wins) | 1h 40m | 1h 22m |
Runtime head-to-head
| Appliance | EcoFlow DELTA Pro 3 | EcoFlow DELTA 3 Max |
|---|---|---|
| Refrigerator | 58.0 hrs | 29.0 hrs |
| Mini fridge | 110.5 hrs | 55.3 hrs |
| Chest freezer | 43.5 hrs | 21.8 hrs |
| CPAP machine | 87.0 hrs | 43.5 hrs |
| Sump pump | 4.4 hrs | 2.2 hrs |