EcoFlow runtime estimate
Will the EcoFlow DELTA Pro 3 run a CPAP?
Estimate: about 8.2 nights with heated humidifier on, 14.5 nights with humidifier off, or 16.8 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 | 4096 Wh |
|---|---|
| Usable estimate | 4096 Wh x 0.85 = 3482 Wh on AC inverter |
| AC inverter | 4000 W continuous fixture value |
| Chemistry | LiFePO4 |
| Weight | 113.5 lb |
| MSRP | $3,699, fixture checked 2026-06-12 |
| Source | https://www.ecoflow.com/us/delta-pro-3-portable-power-station |
Line-by-line math
- CPAP humidifier on: 4096 Wh x 0.85 = 3482 Wh / 53 W = 65.7 h = 8.2 nights.
- CPAP humidifier off: 4096 Wh x 0.85 = 3482 Wh / 30 W = 116.1 h = 14.5 nights.
- Compatible DC cable: 4096 Wh x 0.92 = 3768 Wh / 28 W = 134.6 h = 16.8 nights.
- Full-size refrigerator: 4096 Wh x 0.85 = 3482 Wh / 150 W = 23.2 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.