CPAP Runtime Calculator

How many nights will your power station run your CPAP? Toggle humidifier on/off to see the difference.

Appliances (toggle on/off, adjust hours)

CPAP (no humidifier)
Basic CPAP, AC power
40W
h/d320 Wh
CPAP (with humidifier)
Heated humidifier adds ~35W
75W
h/d
CPAP (heated tube + humidifier)
Full comfort mode
100W
h/d
CPAP via DC adapter (no humidifier)
DC adapter skips inverter — 10-15% more runtime
35W
h/d
Phone Charger
20W
h/d40 Wh
LED Night Light
5W
h/d
Wi-Fi Router
If you need internet overnight
12W
h/d

Your System

Daily Use
360 Wh
Battery
900 Wh
Solar
88W
Inverter
75W
2d backup · 5.5h sun · LiFePO4 80% DOD

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GT600
CTECHi
GT600
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T1000
GRECELL
T1000
$399
P600
OUKITEL
P600
$279
Browse all →

Tips

  • →Use DC adapter if your CPAP supports it — gains 10-15% more runtime
  • →Turn off heated humidifier to nearly double battery life
  • →At 40W, a 500Wh battery gives ~8.5 hours (1 full night)
  • →Power stations under 300W output are fine for CPAP (low draw)
  • →Look for models with quiet fans — you're sleeping next to it
  • →Keep the power station charged to 80%+ at all times for emergency readiness
  • →Test your exact CPAP model's draw with a kill-a-watt meter for precision