EcoFlow DELTA 3 vs Anker 757 PowerHouse
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 $350 less. Whether that gap is worth closing depends on what you need to run.
- Anker 757 PowerHouse holds 20% more energy (1229Wh vs 1024Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 has 1200W more surge headroom (3600W vs 2400W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 3 is 15.2 lb lighter (28.7 lb vs 43.9 lb).
- EcoFlow DELTA 3 is rated for 4,000 cycles vs 3,000 — meaningful if you cycle it daily.
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
Anker 757 PowerHouse
Anker's older flagship, now a discount play. Solid and durable, but heavy for its capacity and outclassed on charge speed by the newer C-series.
Best for: Buyers who find it discounted below the newer Anker C1000.
Where it falls short:
- 43.9 lb for 1.2kWh is heavy
- 300W solar input is low
- Outclassed by the newer C1000
| Spec | EcoFlow DELTA 3 | Anker 757 PowerHouse |
|---|---|---|
| Price | $649 | $999 |
| Capacity | 1024 Wh | 1229 Wh |
| Continuous output | 1800 W | 1500 W |
| Surge output | 3600 W | 2400 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,000 |
| Weight (lighter wins) | 28.7 lb | 43.9 lb |
| Max solar | 500 W | 300 W |
| Recharge time (faster wins) | 56 min | 1h 30m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 | Anker 757 PowerHouse |
|---|---|---|
| Refrigerator | 14.5 hrs | 17.4 hrs |
| Mini fridge | 27.6 hrs | 33.2 hrs |
| Chest freezer | 10.9 hrs | 13.1 hrs |
| CPAP machine | 21.8 hrs | 26.1 hrs |
| Sump pump | 1.1 hrs | ❌ |