Anker SOLIX C1000 vs EcoFlow DELTA 2
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 2 costs $100 less. Whether that gap is worth closing depends on what you need to run.
- Anker SOLIX C1000 holds 3% more energy (1056Wh vs 1024Wh), so it runs the same load proportionally longer.
- Anker SOLIX C1000 has 200W more surge headroom (2400W vs 2200W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 2 is 1.4 lb lighter (27 lb vs 28.44 lb).
Neither of these will start a sump pump or well pump — both surge below the ~3,400W those motors need. If home backup with pumps is your use case, look at higher-surge models instead of either of these.
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 value pick in the 1kWh class. Cheaper than the Anker C1000 with nearly identical capacity — but check the surge number before you buy.
Best for: Budget-conscious buyers running electronics and a fridge, with no motor-driven loads.
Where it falls short:
- X-Boost tops out at 2200W — the least surge headroom of any 1kWh unit we list
- 80-minute recharge is slower than Anker's 58
| Spec | Anker SOLIX C1000 | EcoFlow DELTA 2 |
|---|---|---|
| Price | $999 | $899 |
| Capacity | 1056 Wh | 1024 Wh |
| Continuous output | 1800 W | 1800 W |
| Surge output | 2400 W | 2200 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 28.44 lb | 27 lb |
| Max solar | 600 W | 500 W |
| Recharge time (faster wins) | 58 min | 1h 20m |
Runtime head-to-head
| Appliance | Anker SOLIX C1000 | EcoFlow DELTA 2 |
|---|---|---|
| Refrigerator | 15.0 hrs | 14.5 hrs |
| Mini fridge | 28.5 hrs | 27.6 hrs |
| Chest freezer | 11.2 hrs | 10.9 hrs |
| CPAP machine | 22.4 hrs | 21.8 hrs |
| Sump pump | ❌ | ❌ |