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Anker SOLIX F3800: runtime and specs
From Anker's own product page, read November 2026. Runtimes use 85% of capacity, the planning figure Jackery and EcoFlow use.
Short answer
The Anker SOLIX F3800 stores 3,840 Wh and puts out 6,000 W continuously, 9,000 W surge. It runs a typical bottom-freezer fridge about 2.1 days and a 1,000 W load about 3 h 16 min.
Runtime at a steady load
| Load | Runs for |
|---|---|
| 100 W | 32 h 38 min |
| 300 W | 10 h 53 min |
| 500 W | 6 h 32 min |
| 1,000 W | 3 h 16 min |
| 1,500 W | 2 h 11 min |
| 3,000 W | 1 h 5 min |
hours = 3,840 Wh × 0.85 ÷ watts
Runtime on a refrigerator
| Fridge (ENERGY STAR median) | Average draw | Runs for |
|---|---|---|
| Bottom-freezer fridge 560 kWh/yr | 64 W | 2.1 days |
| Top-freezer fridge 363 kWh/yr | 41 W | 3.3 days |
| Side-by-side fridge 640 kWh/yr | 73 W | 44 h 41 min |
| Compact fridge 246 kWh/yr | 28 W | 4.8 days |
A fridge's compressor cycles, so its average draw is far below its starting surge. For anything else, put its watts into the power station runtime calculator.
Specs
| Capacity | 3,840 Wh |
|---|---|
| AC output | 6,000 W continuous |
| Surge | 9,000 W |
| Cycle life | 3,000 to 80% |
| Chemistry | LiFePO4 (LFP) |
| Voltage | 120 V and 240 V split phase; 2,400 W per 120 V outlet group |
| Weight | 132 lb (60 kg) |
| Solar input | 2,400 W (2 × 1,200 W, 11 to 60 V) |
| Expansion | Up to 6 BP3800 batteries at 3,840 Wh each (26.88 kWh) |
| Home backup | Works with Anker’s Home Power Panel or a transfer switch |
| Warranty | 5 years |