EcoFlow RIVER 2 Max vs Fossibot F2400
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 $600 less. Whether that gap is worth closing depends on what you need to run.
- Fossibot F2400 holds 300% more energy (2048Wh vs 512Wh), so it runs the same load proportionally longer.
- Fossibot F2400 has 3800W more surge headroom (4800W vs 1000W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 Max is 35.3 lb lighter (13.2 lb vs 48.5 lb).
- Fossibot F2400 is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
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
A value-brand 2kWh that undercuts the majors sharply while matching them on the specs that matter — 2,400W output and a strong 4,800W surge.
Best for: Bargain hunters who want high surge and 2kWh for the least money.
Where it falls short:
- 500W solar input is low for 2kWh
- Support network trails the majors
| Spec | EcoFlow RIVER 2 Max | Fossibot F2400 |
|---|---|---|
| Price | $299 | $899 |
| Capacity | 512 Wh | 2048 Wh |
| Continuous output | 500 W | 2200 W |
| Surge output | 1000 W | 4800 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 13.2 lb | 48.5 lb |
| Max solar | 220 W | 500 W |
| Recharge time (faster wins) | 1h | 1h 30m |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 Max | Fossibot F2400 |
|---|---|---|
| Refrigerator | 7.3 hrs | 29.0 hrs |
| Mini fridge | 13.8 hrs | 55.3 hrs |
| Chest freezer | 5.4 hrs | 21.8 hrs |
| CPAP machine | 10.9 hrs | 43.5 hrs |
| Sump pump | ❌ | 2.2 hrs |