EcoFlow RIVER 2 Pro vs EcoFlow DELTA 3 Max Plus
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 $700 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 3 Max Plus holds 167% more energy (2048Wh vs 768Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 Max Plus has 4400W more surge headroom (6000W vs 1600W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 Pro is 40.3 lb lighter (17 lb vs 57.3 lb).
- EcoFlow DELTA 3 Max Plus is rated for 4,000 cycles vs 3,000 — meaningful if you cycle it daily.
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
Adds 600W of continuous output and doubles surge headroom over the standard Max, for $200. Worth it only if you're running heavy loads.
Best for: Workshops and job sites where tool startup surge is the constraint.
Where it falls short:
- $200 premium is wasted if your loads are under 2400W
- 57 lb
| Spec | EcoFlow RIVER 2 Pro | EcoFlow DELTA 3 Max Plus |
|---|---|---|
| Price | $599 | $1299 |
| Capacity | 768 Wh | 2048 Wh |
| Continuous output | 800 W | 3000 W |
| Surge output | 1600 W | 6000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 4,000 |
| Weight (lighter wins) | 17 lb | 57.3 lb |
| Max solar | 220 W | 1000 W |
| Recharge time (faster wins) | 1h 10m | 1h 22m |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 Pro | EcoFlow DELTA 3 Max Plus |
|---|---|---|
| Refrigerator | 10.9 hrs | 29.0 hrs |
| Mini fridge | 20.7 hrs | 55.3 hrs |
| Chest freezer | 8.2 hrs | 21.8 hrs |
| CPAP machine | 16.3 hrs | 43.5 hrs |
| Sump pump | ❌ | 2.2 hrs |