Anker SOLIX F3800 vs EcoFlow DELTA Pro
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 costs $800 less. Whether that gap is worth closing depends on what you need to run.
- Anker SOLIX F3800 holds 7% more energy (3840Wh vs 3600Wh), so it runs the same load proportionally longer.
- Anker SOLIX F3800 has 1800W more surge headroom (9000W vs 7200W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA Pro is 33.3 lb lighter (99 lb vs 132.3 lb).
- Anker SOLIX F3800 is rated for 4,000 cycles vs 3,500 — meaningful if you cycle it daily.
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
The previous-generation flagship, now mostly worth buying on discount. The Pro 3 beats it on nearly every axis.
Best for: Bargain hunters who find it steeply discounted against the Pro 3.
Where it falls short:
- 99 lb and 165-minute recharge — both beaten by the Pro 3
- Aging platform; expect it to be phased out
| Spec | Anker SOLIX F3800 | EcoFlow DELTA Pro |
|---|---|---|
| Price | $3999 | $3199 |
| Capacity | 3840 Wh | 3600 Wh |
| Continuous output | 6000 W | 3600 W |
| Surge output | 9000 W | 7200 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,500 |
| Weight (lighter wins) | 132.3 lb | 99 lb |
| Max solar | 2400 W | 1600 W |
| Recharge time (faster wins) | 1h 30m | 2h 45m |
Runtime head-to-head
| Appliance | Anker SOLIX F3800 | EcoFlow DELTA Pro |
|---|---|---|
| Refrigerator | 54.4 hrs | 51.0 hrs |
| Mini fridge | 103.6 hrs | 97.1 hrs |
| Chest freezer | 40.8 hrs | 38.3 hrs |
| CPAP machine | 81.6 hrs | 76.5 hrs |
| Sump pump | 4.1 hrs | 3.8 hrs |