NEW Resmed Airsense 10 camping trauma due to 125 W instead of 90 W cord

[HDCowboy]

Something isnt adding up, the power brick (to the best of my knowledge)is basically just a 110V AC to 12V DC transformer. I will have to verify that when I get off work but why would you even want to feed the transformer/power brick 12V DC battery power to begin with if it takes 110V ac? Seems it would just transform the 12V to some really low voltage that in my opinion I have know idea how it would be able to power the machine at all! My guess is that the cig lighter plug should be able to power the Airsense 12V DC all by it self without the need of the powerbrick (ie transformer) what so ever!!

OK just got home and looked at my power brick it takes 110/120V AC house power and converts it to 24V DC 3.75amp (not 12 like I said above) but the pic you posted above is this thing.........

https://www.1800cpap.com/resmed-dc-conv ... fgQAvD_BwE

https://www.youtube.com/watch?v=Eq4zsXi1In0

What was throwing me off is its not the standard power bricK that comes with the Airsense 10! Its just some sort of DC power convertor that I'm not familiar with so I cant exactly tell you how it works. I take it its output is 24V DC 3.75amp like the regular power brick and its feed with 12V or 24V DC.

[Buddy0329]

I don't know what I am talking about. The change is with the new water chamber (the plastic part) ithat has the metal part on the botton of the chamber is now round on the bottom, rather than square like my old one. I guess that is not any reason for a cord not to work.
I am stumped.

Airsense 11?

[HDCowboy]

Airsense 10 runs on 24 Volts
What equipment says 12 volts?
Maybe a different machine?

Forgive me!! Like I said I was just guessing, I was at work and didnt have the power brick in front of me to look at, yes you are right it runs on 24V DC! LOL!!

[palerider]

so, even if the new airsense 110 v wall plug cord has a sticker that says 125w/7A and the old DC converter box to use with an RV battery says 90W and 3.75A it should still work? Ugh. haha WHAT DID I JUST type?
I cannot understand this stuff.
It does not make sense to me.
It all worked fine for years until the new airsense 10 autoset machine showed up and then the camping cord duehickey no longer worked.
I think I will just give up and use my old airsense machine when camping even if it does not work as well.
Ugh.

Pictures would probably help.

[palerider]

Something isnt adding up, the power brick (to the best of my knowledge)is basically just a 110V AC to 12V DC transformer.

Nope.

[HDCowboy]

Something isnt adding up, the power brick (to the best of my knowledge)is basically just a 110V AC to 12V DC transformer.

Nope.

Yes I realize that now! I made a boo boo! It runs on 24V DC!! Geez!!

[palerider]

What makes most sense to me is the OP is not correct about describing the the machines.

The old machine is likely an S9 (square humidifier tank) and the new machine an AirSense 10. This also explains why the DC-DC Adapter isn't interchangeable between the two.

Cuz they look almost the same, don't they?

[palerider]

What was throwing me off is its not the standard power bricK that comes with the Airsense 10! Its just some sort of DC power convertor that I'm not familiar with so I cant exactly tell you how it works. I take it its output is 24V DC 3.75amp like the regular power brick and its feed with 12V or 24V DC.

Because one shouldn't (as the OP said) use an AC power supply with a battery, one should use a DC cord.

And as to your 'geeze' you didn't go back and correct your misstatement. expect to get corrected.

[palerider]

Airsense 10 runs on 24 Volts
What equipment says 12 volts?
Maybe a different machine?

Forgive me!! Like I said I was just guessing,

Please refrain from guessing.

[HDCowboy]

Forgive me Father I have sinned!!

[gassgil@gmail.com]

Hi
I obviously know nothing about electricity but both machines are airsense 10 autosets. I have no idea why this has happened. I also am known to mess up ac and dc and etc.....all i know is i figured it all out 1x 5 or so yrs ago and it all worked.

[SAG]

Yes I realize that now! I made a boo boo! It runs on 24V DC!! Geez!!

The ResMed AirSense 10 DC Converter connects Air10 CPAP machines to 12V or 24V battery power sources like those found in a car, recreational vehicle, or boat.
https://www.cpap.com/productpage/resmed ... 0-machines

iirc - the S8 ran on -12V then they decided to add $60 to the DC cable after that so the one linked is $84.95

[palerider]

Hi
I obviously know nothing about electricity but both machines are airsense 10 autosets. I have no idea why this has happened. I also am known to mess up ac and dc and etc.....all i know is i figured it all out 1x 5 or so yrs ago and it all worked.

Post pics of this 'new water tank'.