EcoFlow DELTA 2 vs Anker SOLIX F2600
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 $600 less. Whether that gap is worth closing depends on what you need to run.
- Anker SOLIX F2600 holds 150% more energy (2560Wh vs 1024Wh), so it runs the same load proportionally longer.
- Anker SOLIX F2600 has 600W more surge headroom (2800W vs 2200W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 2 is 34.7 lb lighter (27 lb vs 61.7 lb).
- Anker SOLIX F2600 is rated for 4,000 cycles vs 3,000 — meaningful if you cycle it daily.
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 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
An odd spec sheet: 2560Wh of capacity but only 2800W surge — the lowest surge-to-capacity ratio here. Capacity without starting power.
Best for: Long-duration backup of steady loads (lights, electronics, CPAP) rather than motor-driven appliances.
Where it falls short:
- 2800W surge is barely above its 2400W continuous — it will struggle with pumps
- 61.7 lb
| Spec | EcoFlow DELTA 2 | Anker SOLIX F2600 |
|---|---|---|
| Price | $899 | $1499 |
| Capacity | 1024 Wh | 2560 Wh |
| Continuous output | 1800 W | 2400 W |
| Surge output | 2200 W | 2800 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 4,000 |
| Weight (lighter wins) | 27 lb | 61.7 lb |
| Max solar | 500 W | 1000 W |
| Recharge time (faster wins) | 1h 20m | 1h 30m |
Runtime head-to-head
| Appliance | EcoFlow DELTA 2 | Anker SOLIX F2600 |
|---|---|---|
| Refrigerator | 14.5 hrs | 36.3 hrs |
| Mini fridge | 27.6 hrs | 69.1 hrs |
| Chest freezer | 10.9 hrs | 27.2 hrs |
| CPAP machine | 21.8 hrs | 54.4 hrs |
| Sump pump | ❌ | ❌ |