EcoFlow DELTA 2 vs EcoFlow RIVER 3 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 3 Plus costs $570 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 2 holds 258% more energy (1024Wh vs 286Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 2 has 1000W more surge headroom (2200W vs 1200W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 3 Plus is 17.1 lb lighter (9.9 lb vs 27 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 value pick in the 1kWh class. Cheaper than the Anker C1000 with nearly identical capacity — but check the surge number before you buy.
Best for: Budget-conscious buyers running electronics and a fridge, with no motor-driven loads.
Where it falls short:
- X-Boost tops out at 2200W — the least surge headroom of any 1kWh unit we list
- 80-minute recharge is slower than Anker's 58
Doubles the River 3's output for $90 more, and adds an expansion battery port. The better buy of the two unless weight is everything.
Best for: Campers who want one unit that covers devices plus the occasional small appliance.
Where it falls short:
- 286Wh alone is a single evening of real use
- 220W solar input is modest
| Spec | EcoFlow DELTA 2 | EcoFlow RIVER 3 Plus |
|---|---|---|
| Price | $899 | $329 |
| Capacity | 1024 Wh | 286 Wh |
| Continuous output | 1800 W | 600 W |
| Surge output | 2200 W | 1200 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 27 lb | 9.9 lb |
| Max solar | 500 W | 220 W |
| Recharge time (faster wins) | 1h 20m | 1h |
Runtime head-to-head
| Appliance | EcoFlow DELTA 2 | EcoFlow RIVER 3 Plus |
|---|---|---|
| Refrigerator | 14.5 hrs | 4.1 hrs |
| Mini fridge | 27.6 hrs | 7.7 hrs |
| Chest freezer | 10.9 hrs | 3.0 hrs |
| CPAP machine | 21.8 hrs | 6.1 hrs |
| Sump pump | ❌ | ❌ |