EcoFlow DELTA 3 vs EcoFlow DELTA 3 Max Plus
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 costs $650 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 3 Max Plus holds 100% more energy (2048Wh vs 1024Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 Max Plus has 2400W more surge headroom (6000W vs 3600W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 3 is 28.6 lb lighter (28.7 lb vs 57.3 lb).
EcoFlow DELTA 3
The 1kWh class got a serious upgrade here. 3600W surge at $649 beats the older DELTA 2 on every axis that matters.
Best for: Anyone about to buy a DELTA 2 — this is the same money for materially better specs.
Where it falls short:
- Still only 1024Wh
- Solar input unchanged at 500W
EcoFlow DELTA 3 Max Plus
Adds 600W of continuous output and doubles surge headroom over the standard Max, for $200. Worth it only if you're running heavy loads.
Best for: Workshops and job sites where tool startup surge is the constraint.
Where it falls short:
- $200 premium is wasted if your loads are under 2400W
- 57 lb
| Spec | EcoFlow DELTA 3 | EcoFlow DELTA 3 Max Plus |
|---|---|---|
| Price | $649 | $1299 |
| Capacity | 1024 Wh | 2048 Wh |
| Continuous output | 1800 W | 3000 W |
| Surge output | 3600 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 4,000 |
| Weight (lighter wins) | 28.7 lb | 57.3 lb |
| Max solar | 500 W | 1000 W |
| Recharge time (faster wins) | 56 min | 1h 22m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 | EcoFlow DELTA 3 Max Plus |
|---|---|---|
| Refrigerator | 14.5 hrs | 29.0 hrs |
| Mini fridge | 27.6 hrs | 55.3 hrs |
| Chest freezer | 10.9 hrs | 21.8 hrs |
| CPAP machine | 21.8 hrs | 43.5 hrs |
| Sump pump | 1.1 hrs | 2.2 hrs |