Resmed Airsense 11 - AC/DC adapter?

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
User avatar
chunkyfrog
Posts: 32347
Joined: Mon Jul 12, 2010 5:10 pm
Location: in a nice, moist, Nebraska bog

Re: Resmed Airsense 11 - AC/DC adapter?

Post by chunkyfrog » Wed Feb 02, 2022 7:20 am

Knowing how Resmed people think, I would lean toward "designed to fail"
whenever possible, just to promote sales of proprietary components.
They know what they have, and that is us. (by the short hairs)

_________________
Machine: AirSense™ 10 AutoSet™ For Her CPAP Machine with HumidAir™ Heated Humidifier
Mask: AirFit™ P10 For Her Nasal Pillow CPAP Mask with Headgear
Additional Comments: second identical machine --sticking with a good thing.
Laughter--the best medicine--up until your giggling wakes your spouse.
"Honey, how can you be having fun without me?"

User avatar
palerider
Posts: 30821
Joined: Wed Dec 16, 2009 5:43 pm
Location: Dallas(ish).

Re: Resmed Airsense 11 - AC/DC adapter?

Post by palerider » Wed Feb 02, 2022 1:05 pm

Scott_G wrote:
Tue Feb 01, 2022 8:24 pm
SleepGeek wrote:
Tue Feb 01, 2022 8:17 pm
incoherent mess
That was certainly an incoherent mess. Congrats!
You've neatly summed up the troll you were responding to.

_________________
Mask: Bleep DreamPort CPAP Mask Solution
Additional Comments: S9 VPAP Auto
Get OSCAR and come chat on IRC: #cpaptalk on irc.libera.chat

Accounts to put on the foe list: dataq1, gearchange, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They're often post misleading, timewasting stuff.

User avatar
SleepGeek
Posts: 512
Joined: Mon Feb 09, 2015 2:56 pm

Re: Resmed Airsense 11 - AC/DC adapter?

Post by SleepGeek » Thu Feb 03, 2022 9:25 pm

chunkyfrog wrote:
Wed Feb 02, 2022 7:20 am
Knowing how Resmed people think, I would lean toward "designed to fail"
whenever possible, just to promote sales of proprietary components.
They know what they have, and that is us. (by the short hairs)
And here I was defending re$med saying they know what they are doing.
The DC-DC converter was designed shut off to save the battery.

I'm pretty sure the re$med design engineers knew the cpap device would not power on (or would shut off) if/when the incoming DC voltage was too low.

IMHO any engineer, self proclaimed or otherwise, would understand that Ohm's Law says that as the voltage drops the current will decrease making it impossible to "burn up" said circuit or components.

This is for those who never heard of Ohm's Law, it is explained here --
https://www.youtube.com/watch?v=HsLLq6Rm5tU





palerider wrote:
Wed Feb 02, 2022 1:05 pm
Scott_G wrote:
Tue Feb 01, 2022 8:24 pm
SleepGeek wrote:
Tue Feb 01, 2022 8:17 pm
incoherent mess
That was certainly an incoherent mess. Congrats!
You've neatly summed up the troll you were responding to.
palerider aka GrumpyHere wrote: ↑
What exactly do you think you're adding to this thread?
How many alter ids do you have?

YOU claim to be cleaning the internet of any misinformation
YOU are part of the problem - not the solution.
Why folks dont like it when you treat em the way they treat you?
If you can be anything why not choose to be kind?
we are here to help.
palerider aka GrumpyHere wrote: What exactly do you think you're adding to this thread?

Scott_G
Posts: 53
Joined: Thu Dec 20, 2012 12:01 pm

Re: Resmed Airsense 11 - AC/DC adapter?

Post by Scott_G » Thu Feb 03, 2022 9:37 pm

do not feed troll.jpg
do not feed troll.jpg (97.72 KiB) Viewed 2279 times

As a specific and helpful response to @SleepGeek:
Not sure if it's crack or alcohol, but help is available: https://www.google.com/search?sxsrf=APq ... 1417&dpr=1

User avatar
palerider
Posts: 30821
Joined: Wed Dec 16, 2009 5:43 pm
Location: Dallas(ish).

Re: Resmed Airsense 11 - AC/DC adapter?

Post by palerider » Thu Feb 03, 2022 9:52 pm

SleepGeek wrote:
Thu Feb 03, 2022 9:25 pm
How many alter ids do you have?

YOU claim to be cleaning the internet of any misinformation
YOU are part of the problem - not the solution.
None, your delusions notwithstanding, I have any desire to play the bullshit games that trolls like you play.

I post as me, and none other.

_________________
Mask: Bleep DreamPort CPAP Mask Solution
Additional Comments: S9 VPAP Auto
Get OSCAR and come chat on IRC: #cpaptalk on irc.libera.chat

Accounts to put on the foe list: dataq1, gearchange, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They're often post misleading, timewasting stuff.

User avatar
palerider
Posts: 30821
Joined: Wed Dec 16, 2009 5:43 pm
Location: Dallas(ish).

Re: Resmed Airsense 11 - AC/DC adapter?

Post by palerider » Thu Feb 03, 2022 9:53 pm

Scott_G wrote:
Thu Feb 03, 2022 9:37 pm
do not feed troll.jpg
Oops. yeah, sorry.

_________________
Mask: Bleep DreamPort CPAP Mask Solution
Additional Comments: S9 VPAP Auto
Get OSCAR and come chat on IRC: #cpaptalk on irc.libera.chat

Accounts to put on the foe list: dataq1, gearchange, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They're often post misleading, timewasting stuff.

Scott_G
Posts: 53
Joined: Thu Dec 20, 2012 12:01 pm

Re: Resmed Airsense 11 - AC/DC adapter?

Post by Scott_G » Thu Feb 03, 2022 9:58 pm

palerider wrote:
Thu Feb 03, 2022 9:53 pm
Scott_G wrote:
Thu Feb 03, 2022 9:37 pm
do not feed troll.jpg
Oops. yeah, sorry.
You are forgiven.

It's a delicate balance, and tough not to respond. Trolls will be trolls. Say nothing and let them rule, or push back and create more BS responses.

There is no perfect solution, but keep in mind the more they spew, the stupider they look. :D
Last edited by Scott_G on Fri Feb 25, 2022 11:52 am, edited 1 time in total.

User avatar
SleepGeek
Posts: 512
Joined: Mon Feb 09, 2015 2:56 pm

Re: Resmed Airsense 11 - AC/DC adapter?

Post by SleepGeek » Thu Feb 03, 2022 10:04 pm

Who likes to argue?
Scott_G » Thu Feb 03, 2022 9:37 pm

Took 12 min. to reply

Gee last time it was 7 min.

Getting slower

But hey everyone is good at something
YOU found your niche.

I didn't even mention YOU
So whose alter id are you? hmmm

Look he got it down to 5 min. lol

Joined:
Thu Dec 20, 2012
First post: by Scott_G
Thu Oct 07, 2021 12:12 pm

Been disagreeing and arguing ever since.
Last edited by SleepGeek on Thu Feb 03, 2022 10:37 pm, edited 1 time in total.
Why folks dont like it when you treat em the way they treat you?
If you can be anything why not choose to be kind?
we are here to help.
palerider aka GrumpyHere wrote: What exactly do you think you're adding to this thread?

Scott_G
Posts: 53
Joined: Thu Dec 20, 2012 12:01 pm

Re: Resmed Airsense 11 - AC/DC adapter?

Post by Scott_G » Thu Feb 03, 2022 10:09 pm

feed-the-troll-you-must-not.jpg
feed-the-troll-you-must-not.jpg (73.18 KiB) Viewed 2225 times
Last edited by Scott_G on Fri Feb 04, 2022 11:47 am, edited 1 time in total.

User avatar
ChicagoGranny
Posts: 12424
Joined: Sun Jan 29, 2012 1:43 pm
Location: USA

Re: Resmed Airsense 11 - AC/DC adapter?

Post by ChicagoGranny » Fri Feb 04, 2022 9:42 am

Scott_G wrote:
Thu Feb 03, 2022 9:58 pm
.
You familiar with the Foe feature?

Unfortunately, it doesn't hide your activity from the Foe.

Scott_G
Posts: 53
Joined: Thu Dec 20, 2012 12:01 pm

Re: Resmed Airsense 11 - AC/DC adapter?

Post by Scott_G » Fri Feb 04, 2022 11:44 am

ChicagoGranny wrote:
Fri Feb 04, 2022 9:42 am
You familiar with the Foe feature?
Unfortunately, it doesn't hide your activity from the Foe.
I am. However, as you indicate, it isn't entirely effective. It makes some threads tough to follow, as posts that reference or reply to the foe's obscured post appear out of context. And obscuring those posts often leaves misinformation to stand unchallenged, which is a disservice to everyone and particularly to new members who come here seeking legitimate information. That all makes using the foe list a tough call for me, but maybe I'll get there eventually.

walnutc
Posts: 7
Joined: Thu May 05, 2022 3:47 pm

Re: Resmed Airsense 11 - AC/DC adapter?

Post by walnutc » Thu May 05, 2022 3:52 pm

So I got the AirSense DC/DC to use with my deep cycle battery for camping with my resmed 11. It powers up, runs for awhile but intermittently shuts off - not sure if that is the power threshold you were talking about Scott. I don't know if you have recommendations for settings or to improve my setup so that it actually works consistently. I used to use battery -> converter/inverter? or something -> dc for my resmed 10 that died.

Scott_G
Posts: 53
Joined: Thu Dec 20, 2012 12:01 pm

Re: Resmed Airsense 11 - AC/DC adapter?

Post by Scott_G » Thu May 05, 2022 5:13 pm

Is the battery fully charged? How old is it?

Best guess is that (under load) it is dropping below 11.4V -- at which point the AirMini DC/DC converter will simply shut down. After the battery rests a while, it might be able to muster >11.4V again for a short time. Best way to "prove" that is (or isn't) what's happening is with a logging multimeter connected to the battery during use if you or a friend/neighbor has one.

A healthy, fully charged "car sized" deep cycle (i.e., 55-75AH) 12V battery should handle the Airsense11 (via the AirMini DC/DC converter) for at least 10-15 hours with humidifier and tube on -- or maybe 2-3 times that long with just the -- before the voltage drops below the 11.4V the converter needs. That's an estimate of course, and actual runtime will vary based on ambient temps, pressures, flows, etc.

walnutc
Posts: 7
Joined: Thu May 05, 2022 3:47 pm

Re: Resmed Airsense 11 - AC/DC adapter?

Post by walnutc » Thu May 05, 2022 5:38 pm

Yeah fully charged battery, maybe a year old. I did notice the light went orange and green depending on if I was exhaling or inhaling, which seemed weird. I have tried my deep cycle battery directly connected to the air mini converter and plugged into a piece I had with my old setup that had the red/black -> 12v. Your setup is just your deep cycle battery -> converter? I'll have to look into the multimeter to double check, but I imagine it is the power draw dipping. Are there products that force it to draw a minimum amount? Or does it sound like I have something hooked up wrong?

User avatar
Rock Star
Posts: 21
Joined: Wed May 02, 2012 10:31 pm

Re: Resmed Airsense 11 - AC/DC adapter?

Post by Rock Star » Thu May 05, 2022 6:22 pm

Scott_G wrote:
Thu May 05, 2022 5:13 pm
Is the battery fully charged? How old is it?

Best guess is that (under load) it is dropping below 11.4V -- at which point the AirMini DC/DC converter will simply shut down. After the battery rests a while, it might be able to muster >11.4V again for a short time. Best way to "prove" that is (or isn't) what's happening is with a logging multimeter connected to the battery during use if you or a friend/neighbor has one.

A healthy, fully charged "car sized" deep cycle (i.e., 55-75AH) 12V battery should handle the Airsense11 (via the AirMini DC/DC converter) for at least 10-15 hours with humidifier and tube on -- or maybe 2-3 times that long with just the -- before the voltage drops below the 11.4V the converter needs. That's an estimate of course, and actual runtime will vary based on ambient temps, pressures, flows, etc.
Color me silly I thought it was you who said that when the voltage went low Airsense 11 could burn up

_________________
Machine: AirCurve™ 10 VAuto BiLevel Machine with HumidAir™ Heated Humidifier
Mask: AirFit™ P10 Nasal Pillow CPAP Mask with Headgear
Additional Comments: Not having trouble just joined to read