EcoFlow DELTA 3 Ultra 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 DELTA mini costs $1400 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 3 Ultra Plus holds 248% more energy (3072Wh vs 882Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 3 Ultra Plus has 5100W more surge headroom (7200W vs 2100W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA mini is 61.9 lb lighter (23.6 lb vs 85.5 lb).
- EcoFlow DELTA 3 Ultra Plus uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- EcoFlow DELTA 3 Ultra Plus 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 Ultra's solar problem solved: same everything, but 1600W of PV input instead of 800W. That doubles your off-grid refill speed for $200.
Best for: Off-grid cabins and van builds that actually recharge from panels.
Where it falls short:
- $1999 approaches DELTA Pro 3 pricing
- 85.5 lb
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 Ultra Plus | EcoFlow DELTA mini |
|---|---|---|
| Price | $1999 | $599 |
| Capacity | 3072 Wh | 882 Wh |
| Continuous output | 3600 W | 1400 W |
| Surge output | 7200 W | 2100 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 4,000 | 800 |
| Weight (lighter wins) | 85.5 lb | 23.6 lb |
| Max solar | 1600 W | 300 W |
| Recharge time (faster wins) | 1h 30m | 1h 36m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 3 Ultra Plus | EcoFlow DELTA mini |
|---|---|---|
| Refrigerator | 43.5 hrs | 12.5 hrs |
| Mini fridge | 82.9 hrs | 23.8 hrs |
| Chest freezer | 32.6 hrs | 9.4 hrs |
| CPAP machine | 65.3 hrs | 18.7 hrs |
| Sump pump | 3.3 hrs | ❌ |