Anker SOLIX F3800 vs Growatt INFINITY 1500
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
Growatt INFINITY 1500 costs $2900 less. Whether that gap is worth closing depends on what you need to run.
- Anker SOLIX F3800 holds 154% more energy (3840Wh vs 1512Wh), so it runs the same load proportionally longer.
- Anker SOLIX F3800 has 6000W more surge headroom (9000W vs 3000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Growatt INFINITY 1500 is 94.8 lb lighter (37.5 lb vs 132.3 lb).
- Anker SOLIX F3800 is rated for 4,000 cycles vs 3,000 — 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
Growatt INFINITY 1500
A capable mid-size that flies under the radar. Solid 2,000W output and fast charging, let down mainly by a shorter warranty than the big brands.
Best for: Value hunters who want 1.5kWh and don't need the longest warranty.
Where it falls short:
- 3,000W surge is modest for the output
- 3-year warranty vs 5 from the majors
| Spec | Anker SOLIX F3800 | Growatt INFINITY 1500 |
|---|---|---|
| Price | $3999 | $1099 |
| Capacity | 3840 Wh | 1512 Wh |
| Continuous output | 6000 W | 2000 W |
| Surge output | 9000 W | 3000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 | 3,000 |
| Weight (lighter wins) | 132.3 lb | 37.5 lb |
| Max solar | 2400 W | 800 W |
| Recharge time (faster wins) | 1h 30m | 1h 50m |
Runtime head-to-head
| Appliance | Anker SOLIX F3800 | Growatt INFINITY 1500 |
|---|---|---|
| Refrigerator | 54.4 hrs | 21.4 hrs |
| Mini fridge | 103.6 hrs | 40.8 hrs |
| Chest freezer | 40.8 hrs | 16.1 hrs |
| CPAP machine | 81.6 hrs | 32.1 hrs |
| Sump pump | 4.1 hrs | ❌ |