Anker 535 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
Anker 535 PowerHouse costs $170 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA mini holds 72% more energy (882Wh vs 512Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA mini has 1350W more surge headroom (2100W vs 750W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker 535 PowerHouse is 6.9 lb lighter (16.7 lb vs 23.6 lb).
- Anker 535 PowerHouse uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Anker 535 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 durable half-kWh unit for devices and light loads. Dependable, but the low output and slow charging make it a device-first companion.
Best for: Campers charging phones, laptops and lights, not appliances.
Where it falls short:
- 500W output is device-scale
- 120W solar input, slow 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 535 PowerHouse | EcoFlow DELTA mini |
|---|---|---|
| Price | $429 | $599 |
| Capacity | 512 Wh | 882 Wh |
| Continuous output | 500 W | 1400 W |
| Surge output | 750 W | 2100 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,000 | 800 |
| Weight (lighter wins) | 16.7 lb | 23.6 lb |
| Max solar | 120 W | 300 W |
| Recharge time (faster wins) | 2h 30m | 1h 36m |
Runtime head-to-head
| Appliance | Anker 535 PowerHouse | EcoFlow DELTA mini |
|---|---|---|
| Refrigerator | ❌ | 12.5 hrs |
| Mini fridge | 13.8 hrs | 23.8 hrs |
| Chest freezer | ❌ | 9.4 hrs |
| CPAP machine | 10.9 hrs | 18.7 hrs |
| Sump pump | ❌ | ❌ |