Further research seems to suggest that a machine like the S9 only draws between 30 and 60 watts. I've got an overseas trip lined up in 2019 in which I will need my BiPAP on the plane. I'm flying Qantas because they will let me plug my machine into their power points (unlike Emirates). Can anyone confirm the wattage draw on an S9 before I go and buy a battery pack? My S9 usually runs between 13 and 15 cmH2O but can get as high as 18.
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Wattage Draw on S9
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05-08-2018, 03:45 AM
Wattage Draw on S9
I read on an airline website that Qantas sets a 75 Watt limit on the power points in their aircraft. If the device plugged in exceeds that the power point shuts down and can only be reset on the ground.
Further research seems to suggest that a machine like the S9 only draws between 30 and 60 watts. I've got an overseas trip lined up in 2019 in which I will need my BiPAP on the plane. I'm flying Qantas because they will let me plug my machine into their power points (unlike Emirates). Can anyone confirm the wattage draw on an S9 before I go and buy a battery pack? My S9 usually runs between 13 and 15 cmH2O but can get as high as 18.
05-08-2018, 07:04 AM
(This post was last modified: 05-09-2018, 04:21 AM by OMyMyOHellYes.)
RE: Wattage Draw on S9
Wattage equals volts times amps W = V * A or for the pickier folks, P = V * I where P = watts, V = voltage and I = amps......
Googleate the Resmed Battery Guide. It will pretty quickly tell you the amp draw of your unit in different configurations if you are curious enough and you can do the math from the formula above. Use the part where Resmed device is powered from converter - not the inverter section. You should have no problem if you are not using heated humidification on the plane. Whether you are seated in a seat with a working power port may be a different matter. You may have to change seats if the one you're at doesn't work. OMMOHY
There. I said it.
OMMOHY Contrarian in Residence
05-08-2018, 07:36 AM
(This post was last modified: 05-08-2018, 07:38 AM by Fats Drywaller.)
RE: Wattage Draw on S9
(05-08-2018, 07:04 AM)OMyMyOHellYes Wrote: You should have no problem if you are not using heated humidification on the plane. Public service announcement: Flyers should be aware that the manufacturers of the machines warn never to have water in the humidifier on a plane, because the water sloshes around (think sudden thousand-foot drop as the plane hits an air pocket) and will probably slosh into the electronics, zzzzzap kaput.
05-09-2018, 04:09 AM
RE: Wattage Draw on S9
If I fly I might use an HME as humidification like I did last time. However, the water chamber on my humidifier here at home has run out of water at times and I've suffered no side effects. I can't see the point of taking the humidifier section onto the plane anyway as it's just extra baggage.
You seem to be confirming that i will be well under wattage use. All i have to do now is talk to Qantas about my machine. I am flying business class in their new Boeing Dreamliner and I'd imagine that every seat has a power supply. I'll check with seat guru to make sure. |
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