Sleep Apnea Machine - Fiberglass RV


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Old 02-21-2006, 09:35 PM   #1
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Does anyone on the forum use a sleep apnea machine?

My girlfried has been diagnosed with the ailment and brought home "the machine" tonight. My only concern is this........................we want to do 90% of our camping "off-grid". I have a great disdain for campgrounds with electricity, lights, showers, etc. So my reservations revolve around how to supply power for this thing. Of course I know I can use a battery and inverter..................but has anyone had any experience with that?
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Old 02-21-2006, 10:02 PM   #2
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Hi Chris,

This is NOT a crisis. There are MANY MANY folks on this forum using all kinds of breathing machines.

The first and most obvious is a generator, but that isn't always doable. BUT..they will jump in here soon and tell ya how they do do it!
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Old 02-21-2006, 10:04 PM   #3
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Oh Gina, I know it's no crisis. Just wondering if I'll need to carry more than one battery to power the thing on trips.
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Old 02-21-2006, 10:18 PM   #4
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I have a relative on one of those sleep machines. He misses alot of the family reunions due to no electricity at the campsite. I suggested a generator, but he says that generators are too noisy. How does a battery power one of those things? I will be watching this post and hoping to find an answer to Derek's delima.
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Old 02-21-2006, 10:23 PM   #5
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Just put an inverter on a battery and you can run A/C electrical items.
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Old 02-21-2006, 10:58 PM   #6
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I use a CPAP (Continuous Positive Airway Pressure) machine. I asked myself that same question as to how I'd get power to it since I also detest RV campgrounds in favor of boondocking. I guess I lucked out by getting a Respironics brand CPAP machine that can be powered by either AC or DC. I went online and found a medical distributor that sold the Respironics 12v fused power cord (caution, do not get a power cord at a place like Radio Shack). That was $26.00 delivered. I already had a Campbell/Hausfeld cordless air inflator and rechargeable 12v power pack (with 12v plug-in socket). Model #CC230001AV. It's good for 8 watts for 14 hours. I get a full night's sleep on one charge. The generator (or a wall plug) will charge it up for another night's sleep. I'm not sure what someone does with a CPAP machine that doesn't have the 12v option. My '94 Bigfoot currently does not have a 12v outlet. I would like to see how my two 12v on-board batteries do running the machine.

P.S. Gina can not have my Bigfoot!
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Old 02-21-2006, 11:24 PM   #7
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Cris,

It seems like the whole thing boils down to what exact machine do you have and how much power does it need. For example, a "Sleepstyle 604" I found drew 1.5-1.7 amp at 115 VAC but Ron's sounds like it uses somewhat less. That could make all the difference in the world as to how practical it would be to run off batteries.
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Old 02-22-2006, 01:08 AM   #8
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I have been using a CPAP for about 20 years.

When I was a Scoutmaster I use to take a little motorcycle battery with me. I canoed 50 miles down the Klamath River using the CPAP every night. I placed a little solar panel on my tent during the day and it kept the battery charged for a little over a week.

Now days I use either my Jumpit which lasts 2.5 days, so I only use it for two days with out a recharge.

Or I use the Casita house battery from the TV 12 volt outlet in the upper cabinet.

The new CPAP machines are so quiet, my wife canít even hear it run a night.

If you have a specific question just ask. I hope this helps.
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Old 02-22-2006, 01:45 AM   #9
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I have been using a CPAP for about 8 years. In the Casita I keep having trouble where to put the machine. Just wondering where others put the machine. I usually sleep next to the window, since my wife gets up several times in the night.

Also what kind of machines do you all use?

Thanks,
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Old 02-22-2006, 08:09 AM   #10
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Thanks for all your responses. I'll have to call her and ask what machine she has. Of course I knew that would be important.............just didn't think of it last night. We are leaving on a trip for the Caribbean this Friday, so it's certainly not something which has to be addressed right now. I'm just a worry wart and wanted to find out. Keep sending info and I'll do my best to respond.
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Old 02-22-2006, 08:19 AM   #11
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I don't have first hand knowledge, but from reading other threads it was my sense that the basic machines were containable with different schemes such as second batteries, jump its, etc. When possible, shooting for a unit that's 12v ready saves the losses associated with inverters. However, what causes a serious drain on the batteries are the optional humidifiers.
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Old 02-22-2006, 12:38 PM   #12
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Thanks for all your input. Her machine is a ResMed S8 with a HumidAire 3i. It is 120v only and the maximum power usage is 20 watts. Sounds to me like a good 27 battery and an inverter.
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Old 02-22-2006, 12:56 PM   #13
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Cris,
Yep, at 20 watts and an 80% efficiency inverter, you'd be drawing a tad over 2 amps. With no other loads, that would last well over 3 nights. 50 watts of solar would make you independent of civilization.

Good news and have fun!
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Old 02-22-2006, 01:02 PM   #14
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Orrrrrrr............................I could charge the battery with a generator during the daytime when it would be a nuisance. (since solor chargers aren't very efficient "down in the trees".
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