EcoFlow RIVER 2 Pro vs EcoFlow DELTA Pro
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 $2600 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro holds 369% more energy (3600Wh vs 768Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Pro has 5600W more surge headroom (7200W vs 1600W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 Pro is 82.0 lb lighter (17 lb vs 99 lb).
- EcoFlow DELTA Pro is rated for 3,500 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
The previous-generation flagship, now mostly worth buying on discount. The Pro 3 beats it on nearly every axis.
Best for: Bargain hunters who find it steeply discounted against the Pro 3.
Where it falls short:
- 99 lb and 165-minute recharge — both beaten by the Pro 3
- Aging platform; expect it to be phased out
| Spec | EcoFlow RIVER 2 Pro | EcoFlow DELTA Pro |
|---|---|---|
| Price | $599 | $3199 |
| Capacity | 768 Wh | 3600 Wh |
| Continuous output | 800 W | 3600 W |
| Surge output | 1600 W | 7200 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 17 lb | 99 lb |
| Max solar | 220 W | 1600 W |
| Recharge time (faster wins) | 1h 10m | 2h 45m |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 Pro | EcoFlow DELTA Pro |
|---|---|---|
| Refrigerator | 10.9 hrs | 51.0 hrs |
| Mini fridge | 20.7 hrs | 97.1 hrs |
| Chest freezer | 8.2 hrs | 38.3 hrs |
| CPAP machine | 16.3 hrs | 76.5 hrs |
| Sump pump | ❌ | 3.8 hrs |