EcoFlow RIVER 3 Plus vs EcoFlow DELTA mini
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 $270 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA mini holds 208% more energy (882Wh vs 286Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA mini has 900W more surge headroom (2100W vs 1200W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 3 Plus is 13.7 lb lighter (9.9 lb vs 23.6 lb).
- EcoFlow RIVER 3 Plus uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- EcoFlow RIVER 3 Plus is rated for 3,000 cycles vs 800 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the EcoFlow DELTA mini. Its NMC cells are rated for 800 cycles against the LiFePO4 rival's longer life — over years of regular use that's the more expensive unit, whatever the sticker says.
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
A compact NMC unit with a surprisingly strong 1,400W output for its size — but the 800-cycle battery means it won't age like the LiFePO4 field.
Best for: Buyers who want strong output in a light unit and won’t cycle it daily.
Where it falls short:
- NMC — ~800 cycles
- 2-year warranty, 300W solar input
| Spec | EcoFlow RIVER 3 Plus | EcoFlow DELTA mini |
|---|---|---|
| Price | $329 | $599 |
| Capacity | 286 Wh | 882 Wh |
| Continuous output | 600 W | 1400 W |
| Surge output | 1200 W | 2100 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,000 | 800 |
| Weight (lighter wins) | 9.9 lb | 23.6 lb |
| Max solar | 220 W | 300 W |
| Recharge time (faster wins) | 1h | 1h 36m |
Runtime head-to-head
| Appliance | EcoFlow RIVER 3 Plus | EcoFlow DELTA mini |
|---|---|---|
| Refrigerator | 4.1 hrs | 12.5 hrs |
| Mini fridge | 7.7 hrs | 23.8 hrs |
| Chest freezer | 3.0 hrs | 9.4 hrs |
| CPAP machine | 6.1 hrs | 18.7 hrs |
| Sump pump | ❌ | ❌ |