EcoFlow RIVER 2 Max vs Segway Cube 1000
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 $500 less. Whether that gap is worth closing depends on what you need to run.
- Segway Cube 1000 holds 100% more energy (1024Wh vs 512Wh), so it runs the same load proportionally longer.
- Segway Cube 1000 has 3400W more surge headroom (4400W vs 1000W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 Max is 15.2 lb lighter (13.2 lb vs 28.4 lb).
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
Segway's stackable home unit brings a strong 2,200W output at 1kWh and a modular design, though the cube form factor is bulkier than flat rivals.
Best for: Buyers who want a stackable, expandable home system starting at 1kWh.
Where it falls short:
- Bulky cube shape
- 3-year warranty
| Spec | EcoFlow RIVER 2 Max | Segway Cube 1000 |
|---|---|---|
| Price | $299 | $799 |
| Capacity | 512 Wh | 1024 Wh |
| Continuous output | 500 W | 2200 W |
| Surge output | 1000 W | 4400 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 13.2 lb | 28.4 lb |
| Max solar | 220 W | 700 W |
| Recharge time (faster wins) | 1h | 1h 20m |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 Max | Segway Cube 1000 |
|---|---|---|
| Refrigerator | 7.3 hrs | 14.5 hrs |
| Mini fridge | 13.8 hrs | 27.6 hrs |
| Chest freezer | 5.4 hrs | 10.9 hrs |
| CPAP machine | 10.9 hrs | 21.8 hrs |
| Sump pump | ❌ | 1.1 hrs |