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Cpap and camping

rightlaneonly
Explorer
Explorer
I know this subject has been discussed here before but honestly most of this is over my head so I'm looking for a simplistic answer if that's even possible. DW has a Phillips IP22 Cpap. 12v 6.6 a. Uses it at home plugged into house current (110). We want to take it camping but not sure how it will work on an inverter. I have two. One is an Xpower Micro Inverter 400 watt and the other is a Vector VECO62 700 watt. either one would be plugged into a 12 volt outlet in the trailer. Trailer uses one group 27 deep cycle battery. Now what I want/need to know in layman's terms, will either one of these work and will the battery last through the night. I can recharge during the day with either a solar panel or a generator. I'm not good at all with electricity and the technical stuff just boggles my mind. With that said please be gentle and offer what you can in simple terms.
Greatly appreciate your input.
Lee.
Lee & Jane
Ford died once to often.
Replaced with 2019 GMC Canyon
Aliner, soon to be gone.
67 REPLIES 67

MEXICOWANDERER
Explorer
Explorer
The twenty to thirty dollar boosters and buckers on eBay have proven themselves in my case. Many are loaded 24/7 and have been so for years. Amazingly they do not drift voltage. The boosters do not track. So a booster to amplify 12 volts to say 30, then a bucker to reduce to 24.00 makes perfect sense. The efficiency in the process seems to hover right around 89%. remember, that's 89% of watts produced. For simplicity's sake call it 90%. Let's have the -PAP consume 50 watts. A ten percent vigorish is not worth comparing to an inverter. Even a 100 watt -PAP consumption is far less than inherent inverter loss plus conversion efficiency loss.

But good products are essential. Not time to bid on a bargain basement voltage adjustment device.

Those damned medical grade -PAP devices track to a certain extent and I do not like it. With a double stage voltage adjustment process the span of incoming voltage can range three or four volts while the output stays dead on 28.00

The neat part about building this stuff, is that it can be proofed in front of your very eyes. It's the packaging of home built electrical apparatus that stymies many people and that's a shame.

rickst29
Explorer
Explorer
OldSmokey wrote:
MEXICOWANDERER wrote:
DW has a Phillips IP22 Cpap. 12v 6.6 a
Now, pray tell - why would a voltage converter be necessary to convert twelve volts to twelve volts?

shh.. don't tell him that....

There's a small chance that voltage accuracy matters. I don't know, and chose to make the "Home-Built Trailer Power Adapters" more capable, more stable than the corresponding 120V power supplies running at home. But it probably doesn't matter. Here's my background "trivia" about it:

Phillips didn't even have a DC Cord for my "then-brand-new" device when I bought it. I was worried about subjecting my machine to widely varying DC Battery Voltage in the Trailer (as low as 12.2V, when abusing the batteries, and as high as 14.4V, when bulk charging). When they did finally release an over-priced cord, it was purely a cord - with no VRM, just a couple of inductors at the ends. So THEY apparently don't see a strong reason to care about it.

For Resmed, a simple "doubler" is theoretically plausible - but Resmed machines already like to die young. Subjecting them to Voltage varying between ~ 23V (discharged batteries with "Voltage Drop" at high current) all the way up to about 28V (Trailer being charged at 14.4V, the Resmed first plugged in and not yet blowing)... feels a bit risky to me. YMMV of course.

Besides, for the Resmed case, the incremental cost of "Regulator" versus mere "Doubler" is virtually nothing.

MEXICOWANDERER
Explorer
Explorer
http://www.ebay.com/itm/Fingertip-Pulse-Oximeter-24hrs-Sleep-Recorder-Blood-Oxygen-SpO2-Monitor-Soft...

I have caught too many doctors, making far too many mistakes to trust their findings with regard to my health. A recording pulse oximeter is a BS Detector and boy have I ever grown to love employing a BS detector with regards to doctors and their declarations.

Dr Alqueda was one example. Another was an ER cardiac specialist who argued with me when I asked for a magnesium test during a atrial fibrillation event. Mine.

"WHAT! What you are asking for is foolish! A waste of money! Why magnesium is the most plentiful element on earth!" This is a verbatim transcript.

"I don't understand it - I just don't understand it" he mumbled as he handed me an Rx for 400mag Magnesium Oxide tablets.

If a 14-day course of nightly O2 measurement did not reveal blood saturation levels below what your doctor says is "minimum" then he has just hanged himself with his own rope. It's time to contact the company that handles the O2 concentrator and ask them if they can provide you with a professional recording course usually lasting a week. Then it will be doctor versus doctor. I'll step aside and watch the dog fight in comfort.

There are as many BAD doctors as there are bad mechanics. Sloppiness and condescension are the two flagship monikers of these vastly over re-numerated health hazards.

Lessee, was it the time the lady doctor finally said "Oops! Sorry about that! My finger slipped down a line when reading your urology creatine results - you really aren't dying of kidney failure".

These stuff isn't a joke. It impacted my life to the point where I am scared, angry and suspicious of the medical community.

Take my reply for what you think it's worth to you. A bad mechanic will only set you back money and inconvenience. A bad doctor can ruin your life, never mind your lifestyle.

I am bracing myself for another Too Close Encounter Of A Sleep Study. My Respironics elapsed time has nine years and when it got it - it already showed 7,000 hours. Health care at it's worst.

Ignoring a doctor's Rx is pure folly. So is accepting serious life changing orders without questioning them. There is NO FOOLING a pulse oximeter. After I finished with Dr. Alqueda, the provider of the O2 machine took over when their pulse oximeter confirmation tightened the noose. Needless use and expense of medical machinery.

Ptui!

Larryect
Explorer
Explorer
Boy, this has wandered. My $0.02 for what it is worth.

I have had several Respironic machines fail before their time. Two of them quit developing adequate air volume at about two years of age. Had to argue with the supply company about it, as it seems the only thing their techs considered and measured was pressure. They look at you like a deer in the headlights when you ask about volume. If the machine can't deliver enough volume at the set pressure, guess what happens when you inhale..... New machine corrected my symptoms each time. Another Respironic machine developed a problem with the power inlet plug being very flaky.

I have not had these problems with ResMed machines which still tend to work fine after 5 years. Most insurance companies I have dealt with and heard about only want to replace the machines after 5 years of age, including Medicare.

For the quality difference, I will find a way to deal with the ResMed 24 volt operation. So far I have been using an inverter. But, I don't dry camp much. Considering efficiencies, I may look into a Dc - DC converter.

Unfortunately, since I am now living at 4500 feet, the doctors are saying I need O2 at night as well. This certainly complicates any chance I have of boon-docking without hook-ups or a genny all night. My current concentrator pulls 350 watts. There are portable machines that appear to use less, at a cost of course.

OldSmokey
Explorer
Explorer
MEXICOWANDERER wrote:
DW has a Phillips IP22 Cpap. 12v 6.6 a

Now, pray tell - why would a voltage converter be necessary to convert twelve volts to twelve volts?


shh.. don't tell him that.. I have one for sale in a pretty blue box.. yours for only $299 :B:B

MEXICOWANDERER
Explorer
Explorer
Those whom you describe would get treated to a vile cavalcade of noxious payback.

I did not jest with my protest of using a 25KHz response to a neighbors incessant barking yap machine. The 200 watt rated tweeter horns repose in my PO Box as I write this...

Stink bombs work wonders. But I adore using the scent of LPG odorant. Oil is used in refining to lube seals and this lube oil attracts the odorant. Tip a pot upside down, crack the valve and liquid LPG escapes. So does the oil. Careful placement upwind of the offender does two things. Drives them away. Makes subsequent rehabitation of the site less likely.

MoFo and the So' Bros, mind-numb can be countered with adequate db counter dosage of Luciano Pavarotti. The Barber of Seville is particularly effective. I use Bob Dylan's "Hey Mister Tambourine Man" pointed at an offending neighbor's house when things get out of control at 0300. For some reason Mexicans consider suicide when confronted with adequate volume of this piece while ensconced in the middle of "La Cruda", a bad hangover.

Stefonius
Explorer
Explorer
MEXICOWANDERER wrote:
Then there are those folks who would merely suspect someone may be running a generator, walk 300' press their ear against the machine then scream bloody murder. My sarcasm lies not far from the truth.
The folks I usually encounter are the ones who park their Harbor Freight open-frame contractor generators under my bedroom window, spewing carbon monoxide into my rig and making enough noise that passing aircraft can hear them. They are invariably offended when asked why they are running it at 3 AM solely to power the boom box that they neglected to purchase batteries for.

At least you're the considerate sort, MexicoWanderer!
2003 F450 Crew Cab, 7.3 PSD "Truckasaurus"
2010 Coachmen North Ridge 322RLT fiver "Habitat for Insanity"
I love my tent, but the DW said, "RV or Divorce"...

pnichols
Explorer II
Explorer II
David .... excellent comments and observations above!

Supposedly the population is aging. When there's statistically so many out there with tinnitus that not enough able bodied Sound Police candidates can be found ... then maybe, just maybe, the Sound Police Movement will die out so that us campers who want to be fully self-contained in any conditions can be ... without incurring the Wrath of God every thime we want to thumb our nose at Mother Nature for a bit by running a generator of some type - including 23 db fuel cells.
2005 E450 Itasca 24V Class C

Sam_Spade
Explorer
Explorer
Mel B. wrote:
A sleep doctor is just like any other DR. They have rules and theres good ones and bad ones.


I think THIS is part of/most of the problem.
What exactly ARE the training requirements and "rules" for a "Sleep Doctor" ?? This ailment is so new that I strongly suspect that there aren't any requirements in most states.

In my area, Doctors of seemingly every imaginable specialty also run "Sleep Clinics". I fully expect that my Dentist and Vet to be the next ones.
'07 Damon Outlaw 3611
CanAm Spyder in the "trunk"

MEXICOWANDERER
Explorer
Explorer
Where I demand to camp, a person could light off an M-80 and only the trees that fell without making a noise would hear it.

Not everyone likes to pull into a ashole-to-tea-kettle packed campground just in time to start their nightly jackhammer practice hour. Until a poster or responder specifically indicates they run their generator in a populated campground I like to give them the benefit of a doubt.

Having a 4 cylinder Kubota run for hours meant I had to use my head when designing the homestead. Down wind from the perpetual sea breeze which carries what sound is emitted, up the arroyo. My neighbors were amazed that a generator was running 300 ft from their open bedroom window. Even the acute hearing of a 10-year old could not discern noise.

The reason I camp where I do, where I insist I do, is to preclude the possibility of neighbors. Downwind from anyone or any alternative campsite. My 400 HP 855 NTC Cummins is not quiet.

Tiny Hondas like the old 650 and thousand watt make laughingstock out of newer generator claimed noise levels. It specifically includes newer Hondas and Yamahahahahas. A knockdown foam surround would make these little guys utterly silent.

Then there are those folks who would merely suspect someone may be running a generator, walk 300' press their ear against the machine then scream bloody murder. My sarcasm lies not far from the truth.

Fisherguy
Explorer
Explorer
Winnipeg wrote:
I used my CPAP as a good excuse to buy a Yamaha 1000 watt inverter. They are so cool (Honda ones are just as great). I start it in the evening and it runs all night providing 110v to run my CPAP, keep the fridge cold and top off the batteries.

Those little guys are so quiet, you cannot hear them unless they are near an open window. We lock ours to the tow'ed (toad?).


No generator is completely silent and I'm glad you don't camp where we do or there'd be trouble.
Why run a generator all night when you don't have to, there's lotsa other alternatives to having a genny running all night.
06 Dodge Ram 3500 Cummins 6 spd std with a few goodies.

2007 Komfort 274TS, 480 watts solar, Trimetric 2025RV, PD9280, Honda EU2000i, Xantrex SW600

2019 Timber Ridge 24RLS, 600 watts solar, 3-100Ah Lithiums, 12volt Norcold Fridge

Mel_B_
Explorer
Explorer
JimK-NY wrote:
Mel B. wrote:
JimK-NY wrote:
........... Clearly there are individuals with severe levels of sleep apnea who really can benefit from a CPAP. Then there are countless others like myself who are prescribed a CPAP needlessly.


While this may be true, SLEEP APNEA is nothing to fool around with. A sleep doctor is just like any other DR. They have rules and theres good ones and bad ones. But Apnea is a very deadly thing that should not be taken lightly. I've had six sleep studies in the last 24 years. When my grandson was 4 years old he had sleep apnea so bad that they removed his tonsels and his annodes (FORGIVE THE SPELLING) were removed . His father, my son is so stuborn that he won't get checked. But I know how bad he has it, and I'm scared he won't wake up one day. All I'm saying is it does seem like sleep apnea has become the hot thing with Dr,'s the last 20 years. You have a right to a second opinion.
Mel


It seems you already had an opinion and did not bother to read what I wrote. I clearly stated that some people have apnea and will benefit. There is more involved with this field than just good and bad docs. The science behind much of what is being considered is not well understood. On top of that is a major, major industry which I find it grossly overcharging and often deceiving Medicare and insurance companies. I will give an additional example. I got a CPAP that I did not need and would not help my sleep issues! Medicare paid for it. I tried to use it a few times and gave up. I realized it was not fixing any problem that pertained to my sleep. The provider continued to bill Medicare exorbitant amounts for expendable parts. I never used, requested or received any of them. Medicare requires a follow up at I believe 3 months. The physician needs to verify use and efficacy. Otherwise the unit needs to be returned. None of that happened either and the unit is sitting at the back of my closet.

I wasn't trying to start a fight, you did have a choice for a second opinion, I assume? And I don't know anything about medical or medicare or how things work on your side of the states. And my machines (The last two) had a chip in it that has 24-7 system monitoring how much I use my machine every night. I was just trying to point out that there are people out there that do not snore and have apnea. and people should not take it lightly if they are asked to take a sleep study. And if your perscribed a machine "USE IT" sorry if it made you mad. You sound "BITTER" are you getting enough sleep?
Mel

ktmrfs
Explorer
Explorer
rickst29 wrote:
ktmrfs wrote:

... for the resmed you can buy a complete ready to use 12-24 DC to DC converter either from resmed, or from battery power solutions. BPS converter when I bought it was just over $50. works on the airsense 9 or airsense 10. comes complete with the correct plug.

The Resmed price is very high, but the BPS costs only $68 (Amazon). 🙂 It is certainly more compact and convenient than build-your-own. If I'd seen it, I would have bought it.


BPS products are IMHO very high quality and reasonable prices. they started and continue to focus on cpap battery solutions with many good products.

for anyone looking for adapters, inverters, battery packs for cpaps etc. check them out.

When they first started I bought one of there 250WH (roughly 20AH) lithium ion battery packs. still have it, works great. they also at the time had a 500WH unit. at that time 250WH units could be checked as baggage or carry on for airplanes. Now I notice they no longer offer each, biggest is around 100WH, likely due to certain transportation and shipping restrictions.

The 250WH unit will run my resmed or old remstar unit for many nights if I don't used heated humidifier.
2011 Keystone Outback 295RE
2004 14' bikehauler with full living quarters
2015.5 Denali 4x4 CC/SB Duramax/Allison
2004.5 Silverado 4x4 CC/SB Duramax/Allison passed on to our Son!

JimK-NY
Explorer II
Explorer II
Mel B. wrote:
JimK-NY wrote:
........... Clearly there are individuals with severe levels of sleep apnea who really can benefit from a CPAP. Then there are countless others like myself who are prescribed a CPAP needlessly.


While this may be true, SLEEP APNEA is nothing to fool around with. A sleep doctor is just like any other DR. They have rules and theres good ones and bad ones. But Apnea is a very deadly thing that should not be taken lightly. I've had six sleep studies in the last 24 years. When my grandson was 4 years old he had sleep apnea so bad that they removed his tonsels and his annodes (FORGIVE THE SPELLING) were removed . His father, my son is so stuborn that he won't get checked. But I know how bad he has it, and I'm scared he won't wake up one day. All I'm saying is it does seem like sleep apnea has become the hot thing with Dr,'s the last 20 years. You have a right to a second opinion.
Mel


It seems you already had an opinion and did not bother to read what I wrote. I clearly stated that some people have apnea and will benefit. There is more involved with this field than just good and bad docs. The science behind much of what is being considered is not well understood. On top of that is a major, major industry which I find it grossly overcharging and often deceiving Medicare and insurance companies. I will give an additional example. I got a CPAP that I did not need and would not help my sleep issues! Medicare paid for it. I tried to use it a few times and gave up. I realized it was not fixing any problem that pertained to my sleep. The provider continued to bill Medicare exorbitant amounts for expendable parts. I never used, requested or received any of them. Medicare requires a follow up at I believe 3 months. The physician needs to verify use and efficacy. Otherwise the unit needs to be returned. None of that happened either and the unit is sitting at the back of my closet.

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