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Bluetti AC200MAX sizing guide
A big 4,800 W surge headroom for the toughest motor starts; scales with add-on batteries. Here's exactly what it runs, how long, and which outages it covers — computed, not marketed.
~2.5 h AC; expandable to 8.2 kWh · 62 lb · 6× AC, USB-A/C · expandable with add-on batteries.
What the AC200MAX runs — and for how long
| Appliance | Running | Runs it? | Approx. runtime |
|---|---|---|---|
| Refrigerator (modern) | 150 W (1,200 W surge) | yes | ~35 h |
| Chest Freezer | 100 W (1,000 W surge) | yes | ~53 h |
| CPAP Machine (no humidifier) | 40 W | yes | ~46 h |
| CPAP with Heated Humidifier | 60 W (95 W surge) | yes | ~38 h |
| Oxygen Concentrator | 350 W (600 W surge) | yes | ~5.3 h |
| Space Heater (1500 W) | 1,500 W | yes | ~1.2 h |
| Window AC (8,000 BTU) | 715 W (1,250 W surge) | yes | ~3.7 h |
| Window AC (12,000 BTU) | 1,100 W (1,800 W surge) | yes | ~2.4 h |
| Gas Furnace Blower (1/2 HP) | 800 W (2,350 W surge) | yes | ~4.6 h |
| Microwave (1000 W cooking) | 1,200 W | yes | ~1.5 h |
| Sump Pump (1/3 HP) | 800 W (1,500 W surge) | yes | ~12 h |
| Sump Pump (1/2 HP) | 1,050 W (2,150 W surge) | yes | ~8.8 h |
| Well Pump (1/2 HP) | 1,000 W (2,100 W surge) | yes | ~12 h |
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 AC200MAX covers
Common questions
What can the Bluetti AC200MAX run?
With 2,200 W of continuous output and a 4,800 W surge rating, the Bluetti AC200MAX runs refrigerator (modern), chest freezer, cpap machine (no humidifier), cpap with heated humidifier, oxygen concentrator, space heater (1500 w), and more. Its 2,048 Wh battery sets how long: a fridge for roughly a day, a CPAP for several nights.
How long will the Bluetti AC200MAX run a refrigerator?
A modern refrigerator averages about 53 W (it cycles ~35% of the time), so the Bluetti AC200MAX's 2,048 Wh runs one for roughly 35 h before recharging.
Specs: Manufacturer published specifications (approximate; confirm on the current product page) (compiled 2026-06-15). 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.