EcoFlow RIVER 2 Pro 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 RIVER 2 Pro costs $400 less. Whether that gap is worth closing depends on what you need to run.
- Anker 757 PowerHouse holds 60% more energy (1229Wh vs 768Wh), so it runs the same load proportionally longer.
- Anker 757 PowerHouse has 800W more surge headroom (2400W vs 1600W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 Pro is 26.9 lb lighter (17 lb vs 43.9 lb).
Neither of these will start a sump pump or well pump — both surge below the ~3,400W those motors need. If home backup with pumps is your use case, look at higher-surge models instead of either of these.
The one you actually carry. At 17 lb it is light enough for one hand, yet unlike the true pocket units it has the 800W of output needed to run small appliances rather than just charge devices.
Best for: Backpackers, photographers and festival-goers who care about weight above all.
Where it falls short:
- 800W output limits you to electronics and small loads
- 220W solar input means slow off-grid top-ups
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 RIVER 2 Pro | Anker 757 PowerHouse |
|---|---|---|
| Price | $599 | $999 |
| Capacity | 768 Wh | 1229 Wh |
| Continuous output | 800 W | 1500 W |
| Surge output | 1600 W | 2400 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 17 lb | 43.9 lb |
| Max solar | 220 W | 300 W |
| Recharge time (faster wins) | 1h 10m | 1h 30m |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 Pro | Anker 757 PowerHouse |
|---|---|---|
| Refrigerator | 10.9 hrs | 17.4 hrs |
| Mini fridge | 20.7 hrs | 33.2 hrs |
| Chest freezer | 8.2 hrs | 13.1 hrs |
| CPAP machine | 16.3 hrs | 26.1 hrs |
| Sump pump | ❌ | ❌ |