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WARNING to CPAP Users: PREPARE for the Unexpected - When the power goes out
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02-29-2012, 08:36 AM
RE: WARNING to CPAP Users: PREPARE for the Unexpected; When the power goes out
I don't own the humidifier so I can't say. You're right though... using the humidifier would draw a lot more.
SuperSleeper
Apnea Board Administrator www.ApneaBoard.com INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
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02-29-2012, 08:36 AM
RE: WARNING to CPAP Users: PREPARE for the Unexpected; When the power goes out
Steven Wrote:SuperSleeper,(time=1323010712) Wrote:But, I've run my S9 AutoSet CPAP on my Wal-Mart Marine Battery for 3 nights in a row and it only got down to around 12.5. Haven't tested beyond that.But, you do not use a humidifier.
02-29-2012, 08:37 AM
RE: WARNING to CPAP Users: PREPARE for the Unexpected; When the power goes out
Sleepster Wrote:We lost grid power in 2008 for about a week because of Hurricane Ike. That happens only once every couple of decades or so. I couldn't imagine trying to go through that without power to my CPAP machine. If that were to happen today, I'd pull the battery out of my car, cut the wires to the CPAP machine, and hook them up directly to the battery. I think I could find a way to put a fuse in the circuit, too.
02-29-2012, 08:38 AM
RE: WARNING to CPAP Users: PREPARE for the Unexpected; When the power goes out
Sleepster,(time=1323041800) Wrote:If that were to happen today, I'd pull the battery out of my car, cut the wires to the CPAP machine, and hook them up directly to the battery. I think I could find a way to put a fuse in the circuit, too.Just remember that you can't just plug 12-volt power into the CPAP connector that is designed for 110 volt power, or the other way around. Some CPAPs have a specific second connector that is to be used with 12 volt power, others don't, so you'll have to purchase a separate 12-volt power supply brick (converter) that is made for your specific machine. If the CPAP manufacturer does not offer an OEM 12-volt power supply option, you can always purchase a pure sine wave DC to AC power inverter that will change 12 volt battery power to 110 volt standard home power. But keep in mind that any time you use an inverter, you're going to lose anywhere between 20-30% of your battery power in the conversion process. Using an OEM converter designed specifically for your CPAP machine will usually save battery power over using a AC to DC inverter.
SuperSleeper
Apnea Board Administrator www.ApneaBoard.com INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
DONATE to Apnea Board
Change your own pressure - Get the Clinician Setup Manual for your CPAP here OSCAR - Open Source CPAP Analysis Reporter
02-29-2012, 08:39 AM
RE: WARNING to CPAP Users: PREPARE for the Unexpected; When the power goes out
Sleepster Wrote:SuperSleeper,(time=1323043902) Wrote:Just remember that you can't just plug 12-volt power into the CPAP connector that is designed for 110 volt power, or the other way around.There's a 110-volt wire that runs from the wall outlet to the transformer, then a 12-volt wire that runs from the transformer to the CPAP machine. It's this 12-volt wire that I'd cut and connect to my car battery.
02-29-2012, 08:39 AM
RE: WARNING to CPAP Users: PREPARE for the Unexpected; When the power goes out
archangle Wrote:Sleepster,(time=1323048508) Wrote:There's a 110-volt wire that runs from the wall outlet to the transformer, then a 12-volt wire that runs from the transformer to the CPAP machine. It's this 12-volt wire that I'd cut and connect to my car battery.Not on ResMed S9 machines. S9 machines don't run off 12V. ResMed's not very open about what the voltage is, but they'll sell you an expensive converter to produce the needed voltage from a 12V battery.
02-29-2012, 08:39 AM
RE: WARNING to CPAP Users: PREPARE for the Unexpected; When the power goes out
PaulaO Wrote:I have an inverter I use in my vehicle to run my laptop from. It plugs into a 12v outlet (cigarette lighter) and has a standard plug. That's what I will be using. I got an adapter that has two clips on one end and the outlet on the other.
02-29-2012, 08:40 AM
RE: WARNING to CPAP Users: PREPARE for the Unexpected; When the power goes out
Sleepster Wrote:archangle,(time=1323051253) Wrote:If you decide to cut the power cord and make a 12V plug for your CPAP when the power goes out, how do you know which wire is plus and which is minus?I checked with a volt meter. On the plug that goes into the PRS1 machines, the center conductor is positive, the outer conductor is negative. If I ever have to do this I'll use a continuity tester to figure out which wire goes to the center conductor. My guess is that the wire with the white stripes on it is negative, but I wouldn't go on a guess.
02-29-2012, 08:41 AM
RE: WARNING to CPAP Users: PREPARE for the Unexpected; When the power goes out
Gustave Wrote:Hello, :Hi:
02-29-2012, 08:42 AM
RE: WARNING to CPAP Users: PREPARE for the Unexpected; When the power goes out
archangle Wrote:Sleepster,(time=1323056911) Wrote:I do plan to make a cord, or purchase the two cords needed (they make a cable that goes from a cigarette lighter to the CPAP machine, and another that goes from the cigarette lighter socket to alligator clps that attach to a battery -- together they cost almost $50).I bought some DC connectors for my Respironics CPAP machines. |
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