Answer
Can the EcoFlow DELTA Pro 3 run ResMed AirCurve 11 VAuto BiPAP with HumidAir and heated tube?
Runs
Runs. Draw is 66 W, within the 4,000 W continuous output. Estimated runtime on AC: about 43.0 hr, counting about 15 W of inverter draw.
Medical safety notice: Will It Run? gives general power estimates only, not medical advice. Power draw varies by model, settings, pressure, humidifier and altitude. Before relying on any battery, power station, inverter or generator for a medical device, confirm approved power sources with the device manufacturer and your doctor or equipment supplier, and test your setup before an emergency. Never change prescribed settings to extend battery life. If your therapy is life-sustaining, keep the backup your supplier provides, register with your utility's medical-needs program, and have an evacuation plan. Run generators outdoors only, at least 20 ft from windows and doors, because of carbon monoxide risk. In an emergency, call 911.
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The comparison
| EcoFlow DELTA Pro 3 | ResMed AirCurve 11 VAuto BiPAP with HumidAir and heated tube | |
|---|---|---|
| Continuous output / running draw | 4,000 W | 66 W |
| Capacity / average draw | 4,096 Wh nameplate, 3,482 Wh usable | 66 W |
| Runtime on AC | 43.0 hr (66 W + about 15 W inverter draw) | |
| Nights on AC (8 hr) | 5.4 | |
| On DC, best case | Not modeled: the DELTA Pro 3 has no car socket. Its 12 V DC outputs are an Anderson port (30 A) and a DC5521 barrel (5 A), 378 W total, per EcoFlow's specs, so a CPAP DC converter would need an adapter we haven't verified. Plan on AC. | |
| Sources | Station source | Appliance source |
How AC runtime is figured: usable Wh (nameplate × 0.85) ÷ (CPAP watts + about 15 W). The 15 W is the inverter's own draw just to stay on: BLUETTI counts about 15 W of self-consumption in its AC180 runtime formula, and an owner test measured about 17.5 W idle on a DELTA 3 Plus. Larger stations can idle higher, so test your own setup before you rely on it. DC figures skip the inverter and are a best case. Method and DC converter limits: CPAP power station guide.
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Questions
Can the EcoFlow DELTA Pro 3 run ResMed AirCurve 11 VAuto BiPAP with HumidAir and heated tube?
Runs. Draw is 66 W, within the 4,000 W continuous output. Estimated runtime on AC: about 43.0 hr, counting about 15 W of inverter draw.
How was the runtime calculated?
On AC: 4,096 Wh × 0.85 = 3,482 Wh usable, divided by (66 W + about 15 W inverter draw) = 43.0 hr. Not modeled: the DELTA Pro 3 has no car socket. Its 12 V DC outputs are an Anderson port (30 A) and a DC5521 barrel (5 A), 378 W total, per EcoFlow's specs, so a CPAP DC converter would need an adapter we haven't verified. Plan on AC.
Where did the numbers come from?
US spec block: 4,096 Wh, AC continuous 4,000 W and 6,000 W with X-Boost, AC surge 8,000 W, 51.5 kg (113.54 lb), LFP, 4,000 cycles to 80%. ResMed's therapy-device power table (ResMed Deutschland, Art.-Nr. 1018528/11) lists AirCurve 11 VAuto with HumidAir and heated ClimateLineAir tube at 66 Wh during operation. Energy per hour equals average watts, so the average draw is 66 W. ResMed notes the values were measured in a lab and that a local meter can differ.