EcoFlow RIVER 2 Pro 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 $300 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow RIVER 2 Pro holds 50% more energy (768Wh vs 512Wh), so it runs the same load proportionally longer.
- EcoFlow RIVER 2 Pro has 600W more surge headroom (1600W vs 1000W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 Max is 3.8 lb lighter (13.2 lb vs 17 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
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 | EcoFlow RIVER 2 Pro | EcoFlow RIVER 2 Max |
|---|---|---|
| Price | $599 | $299 |
| Capacity | 768 Wh | 512 Wh |
| Continuous output | 800 W | 500 W |
| Surge output | 1600 W | 1000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 17 lb | 13.2 lb |
| Max solar | 220 W | 220 W |
| Recharge time (faster wins) | 1h 10m | 1h |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 Pro | EcoFlow RIVER 2 Max |
|---|---|---|
| Refrigerator | 10.9 hrs | 7.3 hrs |
| Mini fridge | 20.7 hrs | 13.8 hrs |
| Chest freezer | 8.2 hrs | 5.4 hrs |
| CPAP machine | 16.3 hrs | 10.9 hrs |
| Sump pump | ❌ | ❌ |