CPAP battery back up options discussion

September 04, 2021, 09:57 AM

quote:
Originally posted by 911Boss:
While turning the humidifier heater off will help, best way to stretch whatever backup power source is to use a low draw CPAP to start with.

Lots of variables, but the power adapter for an AirSense 10 is rated at 90W. Of course it doesn’t use all that, but depending on pressure setting etc. the humidifier only accounts for about 2/3 of the power at max setting (based on ResMed info).

My travel CPAP is a ResMed AirMini Autoset. The standard power adapter for it is only 27W. It does not have a humidifier, but adds humidity to air via a cartridge inline with the hose that traps and releases moisture from you expelled breath.

If I have to go to battery power, I switch to the travel CPAP.

If you take 2/3 away from 90W, you get 30W, about the same as the 27W on the humidifierless one?

September 04, 2021, 04:18 PM

bald1

quote:
Originally posted by ZSMICHAEL:
quote:
But each year we have outages that run multiple hours to a couple days. Having been on CPAP since 1997 I find I absolutely can not sleep without mine so longer outages without backup mean sleeplessness.

^^^^^^^^^^^^
After a hurricane we on the Gulf Coast are out for days. Other than that a few minutes or hours due to thunderstorms. When I lived in rural Wisconsin it was more frequent but that was the rural electric cooperative's fault. What is your situation??

Black Hills SW of Rapid City receiving power from a small electric utility co-op. Some outages are in heavily wooded rugged terrain making access tough for repair crews with resultant delays getting things up and running.

"Black Hills Electric Cooperative's headquarters is located high in the mountains of western South Dakota near the town of Custer. The cooperative provides electricity to more than 8,000 rural and suburban members and more than 10,000 meters in six counties in southwestern South Dakota."

Here was what killed power for me yesterday for several hours...lightning strike on a substation not all that far from me.

September 04, 2021, 04:31 PM

ZSMICHAEL

Thank you for taking the time to explain. Weather conditions and a rural electric cooperative both.

September 04, 2021, 04:49 PM

bald1

quote:
Originally posted by ZSMICHAEL:
Thank you for taking the time to explain. Weather conditions and a rural electric cooperative both.

Not a problem.
I actually heard the explosion when that substation was hit. Woke me up.
Yes this retiree likes to sleep in especially when I had been unable to get to sleep until around 4am.

Updated: Google Earth pictures of the substation

Line from substation in upper right to my house lower left.