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Anker SOLIX F1200 (PowerHouse 757) sizing guide
A 1.2 kWh mid-size unit rated for 3,000+ cycles — retailer specs for continuous vs. boosted output vary slightly, so treat the rating as approximate and confirm on the current product page. Here's exactly what it runs, how long, and which outages it covers — computed, not marketed.
~1 h to 80% AC (HyperFlash) · 6× AC, USB-A/C, car.
What the F1200 (PowerHouse 757) runs — and for how long
| Appliance | Running | Runs it? | Approx. runtime |
|---|---|---|---|
| Refrigerator (modern) | 150 W (1,200 W surge) | yes | ~21 h |
| Chest Freezer | 100 W (1,000 W surge) | yes | ~32 h |
| CPAP Machine (no humidifier) | 40 W | yes | ~28 h |
| CPAP with Heated Humidifier | 60 W (95 W surge) | yes | ~23 h |
| Oxygen Concentrator | 350 W (600 W surge) | yes | ~3.2 h |
| Space Heater (1500 W) | 1,500 W | yes | ~0.7 h |
| Window AC (8,000 BTU) | 715 W (1,250 W surge) | yes | ~2.2 h |
| Window AC (12,000 BTU) | 1,100 W (1,800 W surge) | yes | ~1.4 h |
| Gas Furnace Blower (1/2 HP) | 800 W (2,350 W surge) | too much | — |
| Microwave (1000 W cooking) | 1,200 W | yes | ~0.9 h |
| Sump Pump (1/3 HP) | 800 W (1,500 W surge) | yes | ~6.9 h |
| Sump Pump (1/2 HP) | 1,050 W (2,150 W surge) | too much | — |
| Well Pump (1/2 HP) | 1,000 W (2,100 W surge) | too much | — |
Runtime uses each load's duty-weighted average draw against 90% of the rated capacity — conservative on purpose. Cyclic loads (fridges, pumps) run far longer than running-watts × capacity would suggest.
Outages the F1200 (PowerHouse 757) covers
Common questions
What can the Anker SOLIX F1200 (PowerHouse 757) run?
With 1,500 W of continuous output and a 1,800 W surge rating, the Anker SOLIX F1200 (PowerHouse 757) runs refrigerator (modern), chest freezer, cpap machine (no humidifier), cpap with heated humidifier, oxygen concentrator, space heater (1500 w), and more. Its 1,229 Wh battery sets how long: a fridge for roughly a day, a CPAP for several nights.
How long will the Anker SOLIX F1200 (PowerHouse 757) run a refrigerator?
A modern refrigerator averages about 53 W (it cycles ~35% of the time), so the Anker SOLIX F1200 (PowerHouse 757)'s 1,229 Wh runs one for roughly 21 h before recharging.
Specs: Manufacturer published specifications (approximate; confirm on the current product page) (compiled 2026-08-10). Informational only — a computed sizing estimate from published appliance-wattage charts and manufacturer station specs. It is not an electrical guarantee. For hardwired or whole-home backup, transfer switches, or any permanent install, consult a licensed electrician.