Can the EcoFlow DELTA Pro (3,600Wh) Run a CPAP Machine?
Yes. With 3,600Wh of LiFePO4 battery capacity (3,060Wh usable after 85% AC inverter conversion) and a 3600W continuous / 7200W surge pure sine wave inverter, the EcoFlow DELTA Pro (3,600Wh) should run a CPAP / BiPAP Machine (Standard Mode) for approximately 57.7 hrs (~2.4 days) on a single charge.
- Usable Watt-Hours: The EcoFlow DELTA Pro (3,600Wh) holds 3600Wh, which yields about 3060Wh of 120V AC power, assuming ~15% DC-to-AC inverter loss.
- CPAP Machine Duty Cycle: While active, a CPAP Machine pulls 45W (with a 60W startup spike). Over a multi-hour period, its 100% duty cycle averages ~45W per hour (plus ~8W inverter standby overhead).
- Tip: Look for a power station with UPS/EPS (<20ms Auto-Switchover) like the Jackery 1000 v2, Anker SOLIX C1000, or EcoFlow DELTA 2. You plug the power station into the wall and your CPAP into the power station—if the grid goes down at 2:00 AM, your CPAP stays on without skipping a breath.
Compare With an Alternative
EcoFlow DELTA Pro (3,600Wh)
Multi-day outages, transfer-switch home backup & off-grid cabins
3,600Wh with a 3,600W inverter (7,200W surge) and up to 1,600W of solar input. Expandable to 10.8kWh, but at 99 lbs it's built to roll, not carry.
- 3,600Wh, the largest capacity on our list
- 3,600W continuous / 7,200W surge
- Up to 1,600W solar input; expandable to 10.8kWh with two extra batteries
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EcoFlow DELTA 2
Full-size refrigerators, coffee makers, microwaves & 1-day home blackouts
A balanced 1kWh-class unit: a 1,800W inverter (2,700W surge) covers most single household appliances, it weighs 27 lbs, and it can expand to 3,040Wh later with an extra battery.
- 1,800W continuous / 2,700W surge handles fridges, coffee makers and microwaves (one at a time)
- 0–80% wall charge in about 50 minutes (EcoFlow spec)
- Expandable to 3,040Wh with an extra battery
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Inexpensive Add-Ons for Running a CPAP Machine on Battery
Running a CPAP from the 12V/DC port skips inverter losses and can roughly double runtime.
Measures what your appliance actually draws, so you size from real numbers instead of estimates.
Lets the power station sit where it's convenient without voltage drop on motor loads.
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