CPAP. Is my ADV life over? NO!!!!

Discussion in 'Camping Toys' started by NachoRoto, Sep 12, 2012.

  1. NachoRoto

    NachoRoto Meet you there. OK?

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    [​IMG]


    Hey Everyone
    Last fall I was diagnosed with sleep apnea. I had a really bad case of it. Using a CPAP machine made me feel better then I have in years. I use to sleep 45 at a time. And I would wake up feeling worse then I did when I went to sleep. I was a horrible mess. But thanks to the CPAP machine I feel like a million bucks.
    As late winter arrive I started to think about riding, camping and spending time off the beaten path and I got sad. No plug, no CPAP, and no breathing/sleep. I was devastated that I would not be able to camp off the beaten path. I hate campgrounds. So I started to research options for powering the machine.
    People had all kind of solutions to this issue. The popular one is running the CPAP off a small jump box. People say they can get 3 nights off a small jump box. This looked like what I was going to do. But two things got in my way.
    1. I am a KLR650 owner. This makes me a cheap old bastard. So buying a jump box was out of the question.
    2. Space. I already travel with enough crap. I didn't want a heavy old jump box too.

    So I took the cheap route. I went to radio shack and bought some parts to make this.

    [​IMG]

    On one end is a Battery tender cable. The other is the connector that goes into my machine (sizes vary, so take your machine to Radio Shack to confirm buying the correct size). My machine runs on 12volts. The house power cord steps it down to 12v. I am told almost all the machine run on 12v. It will be written on the power cord.

    [​IMG]

    I soldered the battery tender cord to the new plug making sure positive was in the center. And that its. I made mine very small. But you can make yours as long as needed. A battery tender cable from any bike shop is 6" or so. So you will only need to buy the machine end at Radio Shack. I wanted extra length. So I bought a Battery Tender extension cord off ebay. Its 25" long.

    [​IMG]

    Its good for many things besides charging your battery. I use it to run power to my tent for many things. I power the CPAP, phone, iPad and charge my scala. If you're stuck in the tent all day on a pouring hard rainy day, its nice to have iPad power to blog, edit pictures or just look at porn.

    So far I have nothing but luck with my set up. My first camping trip was at Skyclad's Southern York and Lancaster County Tour and camping trip. The first night I slept 10 hours powering the machine off my KLR650. I wanted to over test it when I had plenty of people to jump start me in the morning( I went to bed real early, I couldn't wait to test it). I was not sure what was going to happen. I assumed the battery would be almost dead after 10 hours with the machine going. But my LED battery monitor was still in the green when I woke up. And the bike started with no issues. Since then I have camped about a dozen nights. And every time I woke to a green light on the bike. And every time I used the CPAP machine to even pump up my air mattress. It does a good, quick and silent job on the mattress....

    All in all the new cables don't take up much more space then the house cord. And the house cord can stay home if you are running off the bike. And this cord gets to do more things. Its a cheap, small solution. I know a few of you out there have this issue. I hope this helps you. It really helped me enjoy my summer. Cheers!!!
    #1
  2. MrPulldown

    MrPulldown Long timer

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    Can you get me details on yuor CPAP machine. My father, and I both have sleep apnea. He uses a CPAP machine, but it is large and runs on 120v. I got a inverter set up for him when we go camping. The only problem is that a sucks down juice like mad. He can get almost one full night on a RV battery. Yes a fucken Marine deep cycle battery will only last 7 hours. I like to get him something that is more energy efficent like the unit you have.

    Thanks
    #2
  3. tommu56

    tommu56 Long timer

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    Thanks Dennis
    I told the med supply co that I need it to run on 12v.

    I got a whole box of crap including a cube that looks like a "lap top computer power supply" to run the machine on 12-24Vdc along with the household power supply and plug.

    I'll have to look at the back and see what voltage it runs on directly and see if i can eliminate the cube.

    Do you have a humidifier and bring it along?



    tom
    #3
  4. mamm

    mamm < advertise here! >

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    My father is a CPAP user and is thinking of starting riding again, I'll show this thread to him. Thanks!
    #4
  5. Wired

    Wired Been here awhile

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    My dad did something similar on our last trip. We were car camping so he brought a marine battery and a Harbor Freight $12 solar panel to charge the battery during the day. It worked great except we think the battery was bad being 7+ years old, so the solar panel never fully recharged it. Hooked it up to the truck though and we were good to go.
    #5
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  6. NachoRoto

    NachoRoto Meet you there. OK?

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    http://www.cpapcollection.com/phili...-remstar-pro-c-flex-with-optional-humidifier/

    Inverters are really hard on batteries. Look at the power cord like image in my first post. You might be able to do the same with you machine.
    #6
  7. NachoRoto

    NachoRoto Meet you there. OK?

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    I have the humidifier, but never bring it. I find humidity while camping is not needed. And the humidifier draws too much power. I doubt the bike could handle it.
    #7
  8. Twilight Error

    Twilight Error Going nowhere slowly

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    :nod

    Inverters waste a lot of energy converting DC-->AC, so you're already down a lot, then you waste even more when you plug in the CPAP, which takes the AC and converts it back to DC to run the machine.

    Assuming the CPAP you're using has a wall wart power supply of some sort, look at the label - it'll state the output of that power supply. Use that info to shop for a DC-DC converter and skip the inverting steps.
    #8
  9. SgtDuster

    SgtDuster Long timer

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    DC to AC to DC again is very inefficient.

    You better do like this guy and power it directly from 12v DC if your machine runs at this voltage.

    But...I think it's a good idea to NOT run it with the bike/car running...I don't know how this machine would "react" with 14+v from your charging system.
    #9
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  10. Warin

    Warin Retired

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    Guess what a DC- DC converter does..
    converts DC to AC then back to DC ! :rofl
    The main reason why a DC-DC converter is more efficient is that it is better designed and/or a closer match to the load.
    ------------------------------
    When you look at the wall wart you should note not only the output voltage but also the current (the first in volts, the second in amps). If you get a supply of the correct voltage, but low in current it may fail either immediately or some time later.
    #10
  11. Twilight Error

    Twilight Error Going nowhere slowly

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    I am unfamiliar with any dc-dc converter that takes an intermediate step through ac. Perhaps you could link to an example?
    #11
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  12. speedracertdi

    speedracertdi Been here awhile

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    +1
    #12
  13. BMW-K

    BMW-K F800GS FTW!

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    The only catch to doing this (*which I've done) is whether or not you bike battery can handle the pull...and then start the next morning!

    On the other hand it's not like a a Shorai spare Battery wouldn't handle the use...
    #13
  14. RVDan

    RVDan Long timer

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    Indeed why would a dc-dc converter invert to ac first? It should be nothing more than a step down (or step up) transformer
    #14
  15. oldxr

    oldxr Long timer

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    I wouldnt be surprised if I needed a cpap machine.my wife recorded me snoring on her I-phone.No conversion needed for 12v but I agree with the other inmate about not running the bike with the machine connected.you could probably connect a DVOM meter and check the current draw of the machine and get a rough estimate of the run time.There are some of the new lithium batteries that might give a better tun time.Instead of downsizing the battery fill up the tray with a big lithium battery.
    #15
  16. NachoRoto

    NachoRoto Meet you there. OK?

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    With my machine, the draw was insignificant. Without inverters of any kind the little pump over a 10 hour sleep was minimal. And once you leave the house plug and humidifier home, it doesn't take up half of one of your panniers. And the best part of all, is the people I camp with now get to sleep too. Because I am not snoring like someone is raping a bear.
    #16
  17. xtphreak

    xtphreak from B4 "adventure bikes"

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    Better look at transformer theory again
    To DC, a transformer is a long wire
    There is no voltage change to induce voltage in the secondary except when you power on & off




    Sent from my dRoiD3 with the help of 44 cyber-enhanced dwarves
    #17
  18. 9Realms

    9Realms Drawn in by the complex plot

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    GREAT post. I have same sleep problem, and can't sleep without my gear.

    I have two different CPAP machines that both run on straight 12 volts DC. Look around on Craigs..... there are a couple brands and models that will run on straight 12 volts.... the trick is finding the models that are small, lightweight, and EASILY programmed by the user..... some have code strings and passwords needed to get into the thing to fiddle with the programming. Your sleep center will program up a used unit for free normally though.

    Look on Craigs..... sometimes you can score models that have very few hours on them..... some people used em one night and could not get used to them.....

    Anyway, early on with my 2009 KLR, I had the same quest. The KLR known for having a shiddy-ish old school conventional low tech wet battery, and has a tendency for one or two cells to go dry, without being noticed, as few look very often at their batteries.

    The answer for me and a couple other guys, and I learned this trick from a HARLEY forum, switch your stock battery for a DEKA glass Mat technology battery. It's sealed, has better terminals (no nuts, drilled and tapped) and is only $79 bucks DELIVERED for the KLR as an example (link below).

    It's a perfect fit for the KLR. It also no longer needs to be vented. Like the OP, I rigged mine with some extension cords from Dennis Kirk, all plug and play, I will post links below.

    I tried mine at home and ran my CPAP two full nights in testing, as I figured I would not stay more than two nights camping in any one spot without running the bike during the day. I ran the CPAP two full 8 hour nights. The last morning, the bike started NO PROBLEM.

    Tip: The CPAP units (like some REMSTAR models) that run on a straight 12 volts, have pretty cheap 12 volt cigarette lighter socket cords available for them. The ones that get expensive, are the ones that step the power down as they are not running on a full 12 volts. Just for what its worth-- and what worked for me.


    Go with a DEKA, never look back.

    Link: http://www.etx15l.com/



    And here is a bunch of plug and play from Dennis Kirk:


    Battery terminal rings to SAE plug with fuse holder:

    https://www.denniskirk.com/battery-tender/junior-plus-replacement-snap-cord.p28919.prd/28919.sku


    25 foot extension, SAE-to SAE:

    https://www.denniskirk.com/281928.sku?utm_source=google&utm_medium=cse


    SAE to cigarette lighter socket:

    https://www.denniskirk.com/2000145.sku?utm_source=google&utm_medium=cse
    #18
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  19. TSJA

    TSJA Adventurer

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    I use a transcend unit. It works perfect and packs fairly small. It took a little time to get used to the pump being on my head, but I got used to it fairly quick. I put the battery in my handle bar bag and charge it while I ride. The battery is good for about 8 hrs on on setting of 14. It may last longer on a lower setting.

    No affiliation with the company, just a happy user.........

    http://www.cpap.com/productpage/tra...mnetics.html?gclid=CLbw5by-srICFYk-MgodMXMAkQ
    #19
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  20. tommu56

    tommu56 Long timer

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    I checked my machine takes 24v dc in to it and the converter is 90 watts WTF not what I told the med co I wanted Ill be on the phone this morning to them.
    #20