EcoFlow DELTA 3 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 DELTA mini costs $50 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 3 holds 16% more energy (1024Wh vs 882Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 has 1500W more surge headroom (3600W vs 2100W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA mini is 5.1 lb lighter (23.6 lb vs 28.7 lb).
- EcoFlow DELTA 3 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- EcoFlow DELTA 3 is rated for 4,000 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 1kWh class got a serious upgrade here. 3600W surge at $649 beats the older DELTA 2 on every axis that matters.
Best for: Anyone about to buy a DELTA 2 — this is the same money for materially better specs.
Where it falls short:
- Still only 1024Wh
- Solar input unchanged at 500W
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 DELTA 3 | EcoFlow DELTA mini |
|---|---|---|
| Price | $649 | $599 |
| Capacity | 1024 Wh | 882 Wh |
| Continuous output | 1800 W | 1400 W |
| Surge output | 3600 W | 2100 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 4,000 | 800 |
| Weight (lighter wins) | 28.7 lb | 23.6 lb |
| Max solar | 500 W | 300 W |
| Recharge time (faster wins) | 56 min | 1h 36m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 | EcoFlow DELTA mini |
|---|---|---|
| Refrigerator | 14.5 hrs | 12.5 hrs |
| Mini fridge | 27.6 hrs | 23.8 hrs |
| Chest freezer | 10.9 hrs | 9.4 hrs |
| CPAP machine | 21.8 hrs | 18.7 hrs |
| Sump pump | 1.1 hrs | ❌ |