Anker 535 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 535 PowerHouse costs $570 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 1300 holds 146% more energy (1260Wh vs 512Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 1300 has 2550W more surge headroom (3300W vs 750W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker 535 PowerHouse is 14.2 lb lighter (16.7 lb vs 30.9 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 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 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
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 535 PowerHouse | EcoFlow DELTA 1300 |
|---|---|---|
| Price | $429 | $999 |
| Capacity | 512 Wh | 1260 Wh |
| Continuous output | 500 W | 1800 W |
| Surge output | 750 W | 3300 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,000 | 800 |
| Weight (lighter wins) | 16.7 lb | 30.9 lb |
| Max solar | 120 W | 400 W |
| Recharge time (faster wins) | 2h 30m | 1h 36m |
Runtime head-to-head
| Appliance | Anker 535 PowerHouse | EcoFlow DELTA 1300 |
|---|---|---|
| Refrigerator | ❌ | 17.9 hrs |
| Mini fridge | 13.8 hrs | 34.0 hrs |
| Chest freezer | ❌ | 13.4 hrs |
| CPAP machine | 10.9 hrs | 26.8 hrs |
| Sump pump | ❌ | ❌ |