EcoFlow RIVER 2 Pro 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
These two cost the same, so the decision comes down to what you're powering.
- EcoFlow DELTA mini holds 15% more energy (882Wh vs 768Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA mini has 500W more surge headroom (2100W vs 1600W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow RIVER 2 Pro is 6.6 lb lighter (17 lb vs 23.6 lb).
- EcoFlow RIVER 2 Pro uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- EcoFlow RIVER 2 Pro 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.
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
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 2 Pro | EcoFlow DELTA mini |
|---|---|---|
| Price | $599 | $599 |
| Capacity | 768 Wh | 882 Wh |
| Continuous output | 800 W | 1400 W |
| Surge output | 1600 W | 2100 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,000 | 800 |
| Weight (lighter wins) | 17 lb | 23.6 lb |
| Max solar | 220 W | 300 W |
| Recharge time (faster wins) | 1h 10m | 1h 36m |
Runtime head-to-head
| Appliance | EcoFlow RIVER 2 Pro | EcoFlow DELTA mini |
|---|---|---|
| Refrigerator | 10.9 hrs | 12.5 hrs |
| Mini fridge | 20.7 hrs | 23.8 hrs |
| Chest freezer | 8.2 hrs | 9.4 hrs |
| CPAP machine | 16.3 hrs | 18.7 hrs |
| Sump pump | ❌ | ❌ |