Anker SOLIX F3800 vs EcoFlow DELTA 1300
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 1300 costs $3000 less. Whether that gap is worth closing depends on what you need to run.
- Anker SOLIX F3800 holds 205% more energy (3840Wh vs 1260Wh), so it runs the same load proportionally longer.
- Anker SOLIX F3800 has 5700W more surge headroom (9000W vs 3300W) — that decides whether a fridge, pump or AC compressor will actually start.
- EcoFlow DELTA 1300 is 101.4 lb lighter (30.9 lb vs 132.3 lb).
- Anker SOLIX F3800 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Anker SOLIX F3800 is rated for 4,000 cycles vs 800 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the EcoFlow DELTA 1300. Its NMC cells are rated for 800 cycles against the LiFePO4 rival's longer life — over years of regular use that's the more expensive unit, whatever the sticker says.
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
The original DELTA that put EcoFlow on the map. Fast-charging and high-surge for its day, but the NMC battery and lack of USB-C now show its age.
Best for: Bargain hunters who find it heavily discounted.
Where it falls short:
- NMC — ~800 cycles
- No USB-C PD
- 2-year warranty
| Spec | Anker SOLIX F3800 | EcoFlow DELTA 1300 |
|---|---|---|
| Price | $3999 | $999 |
| Capacity | 3840 Wh | 1260 Wh |
| Continuous output | 6000 W | 1800 W |
| Surge output | 9000 W | 3300 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 4,000 | 800 |
| Weight (lighter wins) | 132.3 lb | 30.9 lb |
| Max solar | 2400 W | 400 W |
| Recharge time (faster wins) | 1h 30m | 1h 36m |
Runtime head-to-head
| Appliance | Anker SOLIX F3800 | EcoFlow DELTA 1300 |
|---|---|---|
| Refrigerator | 54.4 hrs | 17.9 hrs |
| Mini fridge | 103.6 hrs | 34.0 hrs |
| Chest freezer | 40.8 hrs | 13.4 hrs |
| CPAP machine | 81.6 hrs | 26.8 hrs |
| Sump pump | 4.1 hrs | ❌ |