Anker 555 PowerHouse vs EcoFlow DELTA 1300
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
Anker 555 PowerHouse costs $300 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 1300 holds 23% more energy (1260Wh vs 1024Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 1300 has 1800W more surge headroom (3300W vs 1500W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker 555 PowerHouse is 1.0 lb lighter (29.9 lb vs 30.9 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 1300. 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
The original DELTA that put EcoFlow on the map. Fast-charging and high-surge for its day, but the NMC battery and lack of USB-C now show its age.
Best for: Bargain hunters who find it heavily discounted.
Where it falls short:
- NMC — ~800 cycles
- No USB-C PD
- 2-year warranty
| Spec | Anker 555 PowerHouse | EcoFlow DELTA 1300 |
|---|---|---|
| Price | $699 | $999 |
| Capacity | 1024 Wh | 1260 Wh |
| Continuous output | 1000 W | 1800 W |
| Surge output | 1500 W | 3300 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,000 | 800 |
| Weight (lighter wins) | 29.9 lb | 30.9 lb |
| Max solar | 200 W | 400 W |
| Recharge time (faster wins) | 2h 18m | 1h 36m |
Runtime head-to-head
| Appliance | Anker 555 PowerHouse | EcoFlow DELTA 1300 |
|---|---|---|
| Refrigerator | 14.5 hrs | 17.9 hrs |
| Mini fridge | 27.6 hrs | 34.0 hrs |
| Chest freezer | 10.9 hrs | 13.4 hrs |
| CPAP machine | 21.8 hrs | 26.8 hrs |
| Sump pump | ❌ | ❌ |