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Open Roads Forum > RVing with Disabilities and General Health Issues

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dwayneearle

Comox British Columbia Canada

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Posted: 02/12/12 08:17am

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My family and I prefer to camp in solitude. But unfortunately I was diagnosed with sever obstructive sleep apnea. The good news is that I have a CPAP machine that is doing a good job and I sleep like a baby. However now I have a problem. The machine that I have now may not have been the greatest option as it is a little more power hungry than other brands and I can't change it so now I have to problem solve. My Resmed S9 auto with H5i humidifier has a 90 watt power supply that consumes 6 amps. The air supply tube that is heated to keep condensation out of the mask increases that consumption but I don't know by how much. I can swap it out for unheated if I need. Using a guide from the manufacturer, to get 8 hours of sleep and have a 50% time redundancy the machine will consume 48 amp hours roughly. I can get a 12/24 volt cigarette power supply from the manufacturer if I need. So here is my question to you. Anyone can throw wads of money at this problem and solve it, but I want want to pick the best option, essentially best bang for the buck and efficiency. Here is what I have now: 1200 watt 4 cycle inverter and a 120 amp hour group 27 battery. Now you fill in the blanks. Thanks in advance.

* This post was edited 02/12/12 08:43am by dwayneearle *

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4*phun*2

Canada

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Posted: 02/12/12 08:29am

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I run my S7 off of 2 12 deep cycle batteries, no humidifier. My batteries barely notice that it has been running when I get up in the morning.

Glenn & Karen
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donn0128

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Posted: 02/12/12 08:54am

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You might considering getting a second, battery powered machine for camping. Leaving the big guns at home.
Etiher that or get lots more batteries and an inverter.

Donn,Lorri,Max (The Rescued Lab)
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doc brown

Redondo Beach, CA,

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Posted: 02/12/12 08:35am

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I run my CPAP off my portable battery charger when I'm boondocking - just plug in the adapter and off to sleep I go.

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snowdance

Yreka, Ca

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Posted: 02/12/12 08:37am

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Both my wife and I have CPAPs. We just did not use the water heater and any other type of heat when traveling on batterys. Just dump the water and run with out it.. Last year we were able to pick up two used ResMed S8 machines with no humidifers from the place we get our stuff from. And they set them up for us. Use them only in the RV. We can run them for days with out charging the batterys. How long depends on the other battery use.. Also having a backup machine of some kind is not a bad idea. We just paid cash as our Ins. company would not spring for them.

Snowdance

We spent most of our money traveling... Just wasted the rest..

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2oldman

Winchester WA

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Posted: 02/12/12 09:28am

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cpap boondocking

D.E.Bishop

Eagle Rock, CA

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Posted: 02/12/12 09:35am

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I have a REMStarPlus and the pump disconnects from the humidifier. When traveling I disconnect it and saves space, weight and power, in fact I really hate the heated air and don't turn the humidifier on. I am now having problems using a CPAP it's causing me to asperate nasal drippings and causing a cough that is very embarassing at time. Been off it for about two weeks this time and cough improving. Family Dr not happy but Pulminary Dr thinks it's best.

"I travel not to go anywhere, but to go. I travel for travel's sake. The great affair is to go". R. L. Stevenson

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jauguston

Bellingham, WA

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Posted: 02/12/12 09:53am

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cpap.com has 12v adapters for most cpap machines for about $25.00. I found a always hot 12v power source under our bed and mounted a power plug on the side of the bed frame I plug my Resperonics System One Auto w/humidifier into. It draws about 5a.

Jim

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dwayneearle

Comox British Columbia Canada

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Posted: 02/12/12 10:02am

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jauguston wrote:

That's what I was thinking about doing. Just going from the battery direct to the bed with a good fuze block and the 12/24 volt power supply. I am just worried about battery drain vs charge time on the generator inverter.