EcoFlow RIVER 3 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 costs $90 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow RIVER 3 Plus holds 17% more energy (286Wh vs 245Wh), so it runs the same load proportionally longer.
- EcoFlow RIVER 3 Plus has 600W more surge headroom (1200W vs 600W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 3 is 2.1 lb lighter (7.8 lb vs 9.9 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.
A glorified power bank with AC outlets — and that's fine if that's what you need. 245Wh runs devices, not appliances.
Best for: Weekend campers charging phones, cameras and a laptop.
Where it falls short:
- 300W output rules out anything with a heating element
- No expansion path
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 RIVER 3 | EcoFlow RIVER 3 Plus |
|---|---|---|
| Price | $239 | $329 |
| Capacity | 245 Wh | 286 Wh |
| Continuous output | 300 W | 600 W |
| Surge output | 600 W | 1200 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 7.8 lb | 9.9 lb |
| Max solar | 110 W | 220 W |
| Recharge time (faster wins) | 1h | 1h |
Runtime head-to-head
| Appliance | EcoFlow RIVER 3 | EcoFlow RIVER 3 Plus |
|---|---|---|
| Refrigerator | ❌ | 4.1 hrs |
| Mini fridge | 6.6 hrs | 7.7 hrs |
| Chest freezer | ❌ | 3.0 hrs |
| CPAP machine | 5.2 hrs | 6.1 hrs |
| Sump pump | ❌ | ❌ |