EcoFlow runtime estimate
Will the EcoFlow DELTA 2 Max run a CPAP?
Estimate: about 4.1 nights with heated humidifier on, 7.3 nights with humidifier off, or 8.4 nights using a compatible CPAP DC converter cable.
A CPAP is a medical device. These are runtime estimates, not medical advice or a medical-safety guarantee. Test your exact setup at home before relying on it.
| Rated capacity | 2048 Wh |
|---|---|
| Usable estimate | 2048 Wh x 0.85 = 1741 Wh on AC inverter |
| AC inverter | 2400 W continuous fixture value |
| Chemistry | LiFePO4 |
| Weight | 50 lb |
| MSRP | $1,899, fixture checked 2026-06-12 |
| Source | https://www.ecoflow.com/us/delta-2-max-portable-power-station |
Line-by-line math
- CPAP humidifier on: 2048 Wh x 0.85 = 1741 Wh / 53 W = 32.8 h = 4.1 nights.
- CPAP humidifier off: 2048 Wh x 0.85 = 1741 Wh / 30 W = 58.0 h = 7.3 nights.
- Compatible DC cable: 2048 Wh x 0.92 = 1884 Wh / 28 W = 67.3 h = 8.4 nights.
- Full-size refrigerator: 2048 Wh x 0.85 = 1741 Wh / 150 W = 11.6 h.
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Try this model with your loads
Pick loads, hours, and whether CPAP uses an AC inverter or a compatible DC converter cable.
A CPAP is a medical device. These are runtime estimates, not medical advice or a medical-safety guarantee. Test your exact setup at home before relying on it.