Anker 555 PowerHouse 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 $100 less. Whether that gap is worth closing depends on what you need to run.
- Anker 555 PowerHouse holds 16% more energy (1024Wh vs 882Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA mini has 600W more surge headroom (2100W vs 1500W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA mini is 6.3 lb lighter (23.6 lb vs 29.9 lb).
- Anker 555 PowerHouse uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Anker 555 PowerHouse 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.
A 1kWh unit whose 1,000W output and slow charging show its age — the newer, cheaper Anker C1000 beats it on nearly every axis.
Best for: Only worth it steeply discounted against the C1000.
Where it falls short:
- 1,500W surge is low
- 200W solar input and a slow 138-minute recharge
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 | Anker 555 PowerHouse | EcoFlow DELTA mini |
|---|---|---|
| Price | $699 | $599 |
| Capacity | 1024 Wh | 882 Wh |
| Continuous output | 1000 W | 1400 W |
| Surge output | 1500 W | 2100 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,000 | 800 |
| Weight (lighter wins) | 29.9 lb | 23.6 lb |
| Max solar | 200 W | 300 W |
| Recharge time (faster wins) | 2h 18m | 1h 36m |
Runtime head-to-head
| Appliance | Anker 555 PowerHouse | 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 | ❌ | ❌ |