Anker SOLIX F3800 vs EcoFlow DELTA Pro 3
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 Pro 3 costs $300 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Pro 3 holds 7% more energy (4096Wh vs 3840Wh), so it runs the same load proportionally longer.
- Anker SOLIX F3800 has 1000W more surge headroom (9000W vs 8000W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA Pro 3 is 19.3 lb lighter (113 lb vs 132.3 lb).
Anker SOLIX F3800
This is where portable power stops being portable and starts replacing a standby generator. The 240V split-phase output is the headline feature.
Best for: Whole-home backup where you need 240V loads and can't run a gas generator.
Where it falls short:
- 132 lb — this is a wheeled appliance, not something you carry
- $3,999 puts it against real standby generators
EcoFlow DELTA Pro 3
The most complete large unit here. 4096Wh, 4000W, 8000W surge and 2600W of solar — it does everything the F3800 does with less weight.
Best for: Whole-home backup buyers who want maximum solar recharge speed.
Where it falls short:
- $3,699 is a serious investment
- Overkill unless you're backing up a whole home
| Spec | Anker SOLIX F3800 | EcoFlow DELTA Pro 3 |
|---|---|---|
| Price | $3999 | $3699 |
| Capacity | 3840 Wh | 4096 Wh |
| Continuous output | 6000 W | 4000 W |
| Surge output | 9000 W | 8000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 4,000 |
| Weight (lighter wins) | 132.3 lb | 113 lb |
| Max solar | 2400 W | 2600 W |
| Recharge time (faster wins) | 1h 30m | 1h 40m |
Runtime head-to-head
| Appliance | Anker SOLIX F3800 | EcoFlow DELTA Pro 3 |
|---|---|---|
| Refrigerator | 54.4 hrs | 58.0 hrs |
| Mini fridge | 103.6 hrs | 110.5 hrs |
| Chest freezer | 40.8 hrs | 43.5 hrs |
| CPAP machine | 81.6 hrs | 87.0 hrs |
| Sump pump | 4.1 hrs | 4.4 hrs |