Anker SOLIX C800 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
Anker SOLIX C800 costs $300 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA 2 holds 33% more energy (1024Wh vs 768Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA 2 has 600W more surge headroom (2200W vs 1600W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker SOLIX C800 is 2.1 lb lighter (24.9 lb vs 27 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 C1000's smaller sibling. Same fast-charging DNA at a lower price, but the 768Wh capacity puts it firmly in weekend-trip territory.
Best for: Campers and van-lifers powering electronics, lights and a mini fridge — not home backup.
Where it falls short:
- 300W solar input is low — slow to top off off-grid
- 1600W surge rules out most motor-driven appliances
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 C800 | EcoFlow DELTA 2 |
|---|---|---|
| Price | $599 | $899 |
| Capacity | 768 Wh | 1024 Wh |
| Continuous output | 1200 W | 1800 W |
| Surge output | 1600 W | 2200 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,000 |
| Weight (lighter wins) | 24.9 lb | 27 lb |
| Max solar | 300 W | 500 W |
| Recharge time (faster wins) | 58 min | 1h 20m |
Runtime head-to-head
| Appliance | Anker SOLIX C800 | EcoFlow DELTA 2 |
|---|---|---|
| Refrigerator | 10.9 hrs | 14.5 hrs |
| Mini fridge | 20.7 hrs | 27.6 hrs |
| Chest freezer | 8.2 hrs | 10.9 hrs |
| CPAP machine | 16.3 hrs | 21.8 hrs |
| Sump pump | ❌ | ❌ |