Anker SOLIX F2000 vs EcoFlow RIVER 2 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 RIVER 2 Max costs $1400 less. Whether that gap is worth closing depends on what you need to run.
- Anker SOLIX F2000 holds 300% more energy (2048Wh vs 512Wh), so it runs the same load proportionally longer.
- Anker SOLIX F2000 has 2600W more surge headroom (3600W vs 1000W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 Max is 34.8 lb lighter (13.2 lb vs 48 lb).
Anker SOLIX F2000
The older F-series unit, now hard to justify: the C2000 offers the same capacity and surge for $400 less.
Best for: Only worth it if you find it steeply discounted below the C2000.
Where it falls short:
- $1699 is $400 over the newer C2000 with identical core specs
- 105-minute recharge is slow by 2026 standards
EcoFlow RIVER 2 Max
Double the River 2's capacity and output for $100 more. The sweet spot of EcoFlow's small line for anyone eyeing the occasional small appliance.
Best for: Campers who want headroom over a pure device charger without the size of a 1kWh unit.
Where it falls short:
- Still not enough output for heaters or compressors
- 220W solar input is modest
| Spec | Anker SOLIX F2000 | EcoFlow RIVER 2 Max |
|---|---|---|
| Price | $1699 | $299 |
| Capacity | 2048 Wh | 512 Wh |
| Continuous output | 2400 W | 500 W |
| Surge output | 3600 W | 1000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 48 lb | 13.2 lb |
| Max solar | 1000 W | 220 W |
| Recharge time (faster wins) | 1h 45m | 1h |
Runtime head-to-head
| Appliance | Anker SOLIX F2000 | EcoFlow RIVER 2 Max |
|---|---|---|
| Refrigerator | 29.0 hrs | 7.3 hrs |
| Mini fridge | 55.3 hrs | 13.8 hrs |
| Chest freezer | 21.8 hrs | 5.4 hrs |
| CPAP machine | 43.5 hrs | 10.9 hrs |
| Sump pump | 2.2 hrs | ❌ |