Anker SOLIX C1000 vs EcoFlow DELTA Max 2000
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 SOLIX C1000 costs $100 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Max 2000 holds 91% more energy (2016Wh vs 1056Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Max 2000 has 1000W more surge headroom (3400W vs 2400W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker SOLIX C1000 is 19.6 lb lighter (28.44 lb vs 48 lb).
- Anker SOLIX C1000 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Anker SOLIX C1000 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 Max 2000. 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 default recommendation for most people. It clears the 1kWh bar, recharges in under an hour, and undercuts almost everything with comparable specs.
Best for: First-time buyers who want one unit for camping and short outages without overpaying.
Where it falls short:
- 2400W surge won't start a sump pump or well pump
- Only 1056Wh — a fridge-plus-devices outage tops out around a day
The previous-generation 2kWh EcoFlow. Still capable and expandable, but its NMC cells and 800-cycle rating are a real step below the LiFePO4 DELTA 3 that replaced it.
Best for: Only at a steep discount against the DELTA 3 Max.
Where it falls short:
- NMC — roughly 800 cycles vs 4,000 for the DELTA 3 Max
- 2-year warranty
| Spec | Anker SOLIX C1000 | EcoFlow DELTA Max 2000 |
|---|---|---|
| Price | $999 | $1099 |
| Capacity | 1056 Wh | 2016 Wh |
| Continuous output | 1800 W | 2400 W |
| Surge output | 2400 W | 3400 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,000 | 800 |
| Weight (lighter wins) | 28.44 lb | 48 lb |
| Max solar | 600 W | 800 W |
| Recharge time (faster wins) | 58 min | 1h 48m |
Runtime head-to-head
| Appliance | Anker SOLIX C1000 | EcoFlow DELTA Max 2000 |
|---|---|---|
| Refrigerator | 15.0 hrs | 28.6 hrs |
| Mini fridge | 28.5 hrs | 54.4 hrs |
| Chest freezer | 11.2 hrs | 21.4 hrs |
| CPAP machine | 22.4 hrs | 42.8 hrs |
| Sump pump | ❌ | 2.1 hrs |