Go Back   iRV2 Forums > CAMPING, TRAVEL and TRIP PLANNING > Boondocking
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Thread Tools Search this Thread Display Modes
Old 06-30-2010, 12:35 AM   #1
Nor'easters Club
Join Date: Dec 2007
Posts: 84
CPAP Use ??

My hub uses this breathing machine, we have a fifth wheel with standard battery no other energy means when boondocking..Please offer ideas advice on what we could do to allow him to use this when no hook up available. ?? generator/solar or what...the only problem with generator is I don't think you can run it at a lot of places during the night. Like state Parks... Thanks!!

kathyp is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 06-30-2010, 02:29 AM   #2
Senior Member
deaton's Avatar

Monaco Owners Club
Newmar Owners Club
Texas Boomers Club
Spartan Chassis
Join Date: Jan 2010
Location: New Braunfels, Texas
Posts: 759
Assuming this item runs on 120 volt AC, you are going to first have to examine the wattage it requires and that would be the starting point to determine what would be required if you chose to go with an inverter powered by a battery bank. If you took that approach, and packed along a small, quite generator, like a Honda 2000, to use in recharging the batteries during the day, you could probably get by without completely using up your storage bays.

There are others on this forum far more qualified than I am to help you figure out the exact battery/inverter configuration.

My experience with solar is that it's pretty good for keeping up a charge on an idle battery bank (rig in storage), but you will need a bunch of panels to recharge enough battery to keep a motor driven device running eight or ten hours (overnight). I think you will find a small generator - like the honda - to be far more reliable and cost effective, plus, when you can run it at night, you have some extra power available for other things.

Dan & Linda
FMCA 399045 NKK 22240
2017 Dutch Star 4018 - Spartan K2
2013 Jeep Grand Cherokee 4x4
deaton is offline   Reply With Quote
Old 06-30-2010, 07:01 AM   #3
Senior Member
Flagelpater's Avatar
Monaco Owners Club
Join Date: May 2009
Posts: 460
FWIW My CPAP uses 12 volts. It is plugged into 110 volts but the transformer puts out 12 volts. Check with the manufacturer for an alternative plug into a cigarette plug (power plug).
2005 Monaco Knight, 3 Slide, 38' PST, Cummins 330 ISC, 34,000 miles on this one!
VMSpc, PressurePro, BrakeSwitch, DeLorme SA2010

2005 Honda CRV, Blue Ox, SMI Brake, TomTom Go 720
Flagelpater is offline   Reply With Quote
Old 06-30-2010, 08:11 AM   #4
Senior Member
Ford Super Duty Owner
Join Date: Dec 2005
Location: Buxton, North Dakota
Posts: 3,376
This inverter should be enough to power the CPAP. You may have to add an additional battery. You don't want to run the battery down past 50%. If you were staying multiple nights you would need some means to charge the battery during the day. The above mentioned generator would be a good choice.

180 watt pure sine wave inverter

Honda EU2000i generator
2003 Winnebago Adventurer 38G F53/ V10 605 watts of Solar
1999 Winnebago Brave 35C Handicap Equipped
1999 Jeep Cherokee & 1991 Jeep Wrangler Renegade
John Hilley is offline   Reply With Quote
Old 06-30-2010, 09:14 AM   #5
Senior Member
Flagelpater's Avatar
Monaco Owners Club
Join Date: May 2009
Posts: 460
FWIW CPAP.com - 12 Volt DC Power Cord (connects CPAP to cigarette lighter socket)

Why complicate it. Just plug it in and leave the inverter off.
2005 Monaco Knight, 3 Slide, 38' PST, Cummins 330 ISC, 34,000 miles on this one!
VMSpc, PressurePro, BrakeSwitch, DeLorme SA2010

2005 Honda CRV, Blue Ox, SMI Brake, TomTom Go 720
Flagelpater is offline   Reply With Quote
Old 06-30-2010, 10:46 AM   #6
Senior Member
wa8yxm's Avatar
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 23,869
CPAP machines can be divided into Two by Two groups.

One has a humidifier or heater.. These need a LOT of power and your single battery likely does not hold enough

Another is just air pressure, no heat, no humidity (or passive humidifier, no heater)

These can be run off either 120vac or in many cases 12vdc (Battery powre) normally supplied by a wall wart, you can get an automotive cord for them as well.

Go with a 12 volt model.
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 06-30-2010, 11:13 AM   #7
Senior Member
Winnebago Owners Club
Freightliner Owners Club
Join Date: Aug 2006
Posts: 1,500
I think you may have answered your own question. Sounds like battery with solar recharge is the way for you to go. This has been discussed many times so do a search of the forum for topic. I am sure you do keep bottled O2 available just in case. Good luck and do what it takes to keep getting him out there.
MaverickBBD is offline   Reply With Quote
Old 07-01-2010, 08:33 AM   #8
Senior Member
Dagwood's Avatar
Workhorse Chassis Owner
Join Date: Jan 2002
Location: Ponce de Leon Fla
Posts: 244

Also FWIW some nps or federal parks with no hookups will have 1 or 2 sites with electric for handicapped. You would have to ask as they are not advertised.
2004 Dolphin Basement AC
7KW Onan Marqui Gold
Dagwood is offline   Reply With Quote
Old 07-01-2010, 09:05 AM   #9
Senior Member
Jack R's Avatar
Tiffin Owners Club
Join Date: May 2009
Location: Lacey, Wa
Posts: 630

I believe the CPAP machine will draw only 3 amps per hour. (no heater) Look at bottom of the machine it will till you the amps needed. I used to hook mine directly to a separate battery and charge that battery during the day. Easiest and most cost saving way.

Jack R is offline   Reply With Quote
Old 07-11-2010, 09:58 AM   #10
Workhorse Chassis Owner
Join Date: Mar 2008
Location: Lehi, UT
Posts: 91
I use a Bipap, similar to a Cpap, Our motorhome has 4 golf car batteries and solar panels rated at 270 watts. My 1000 watt factory installed inverter uses too much power on it own, so I connect a small inverter, about 150 watt, and get along fine.We spent three months as campground hosts in a site with no electricity, and only ran the generator on occassion.
Bill and Pat plus two toy poodles Gigi and Max
1999 Leisure Travel Dodge conversion Van
Freedom Widebody 19'
lascar is offline   Reply With Quote
Old 07-11-2010, 11:47 AM   #11
Senior Member
Jimmyzw22's Avatar
Join Date: Jan 2010
Location: Tracy, CA
Posts: 239
I have a cpap with humidifier and it will run all night long on battery and hardly drains it at all. Wouldn't worry about it just charge batteries during the day.
2002 Holiday Rambler 40 PBT
Jimmyzw22 is offline   Reply With Quote
Old 07-11-2010, 09:44 PM   #12
shastaron's Avatar
Join Date: May 2006
Location: Sacramento, CA
Posts: 50

My CPAP has can run both with and without the humidifier. I got a 12 volt cord for my unit. Hook it to an Optima 12 volt battery and it runs great all night without the humidifier. Never got the battery below 75%. I have a 30 Amp battery charger and keep it hooked up to the battery. Anytime we crank-up the generator for a little while it puts a charge on the Optima. Never had to run the generator more than 1 hour. Seems like when we are dry camping (boondocking) we need the generator at some point in the day or early evening. Have done several weeks this way.

Look at the manual for the CPAP or go to CPAPtalkdotcom and talk to the folks on that forum about your model. All they have a store that I ordered my cord from.

It is very doable.
2004 Winnebago Sightseer 30B Ford V10
Towing PT Cruiser or Ranger 520VX
shastaron is offline   Reply With Quote
Old 07-11-2010, 11:13 PM   #13
Senior Member
CorsairIIAT's Avatar
Join Date: Nov 2009
Posts: 602
We tied in a second battery just for my ex wifes cpap. Ran wire and put a sepperate cigg litter plug to plug it in in the bedroom. Would run generator during the day to charge both batterrys. It worked for us.
"I won't be wronged I won't be insulted I won't be layed a hand on. I don't do these things to other people. And I require the same from them." (John Bernard Books) John Wayne The Shootist his last Movie.
CorsairIIAT is offline   Reply With Quote
Old 01-02-2011, 11:09 AM   #14
Join Date: Nov 2010
Posts: 63
An excerpt from my RV Battery Charging Puzzle:

"The CPAP machine with a humidifier that everybody seems to think requires a generator running all night will run on about 30 amp hours, the output of only one solar panel. Let’s see; a single cylinder gas engine that might run out of fuel & die (or that your incensed neighbor might sabotage – it has happened) or a very reliable battery & inverter. We ran into one guy in a tent who had figured out how to run his on one small car battery that he recharged while driving with jumper cables. Use your brain folks."

I have installed several small inverters for folks with CPAP machines. For reliablity, I would use a 300 or 400 watt and a modified wave inverter works just fine. These vary from 25 to 35 amp hours. No big deal.

Full time boondocker, solar powered, no generator
HandyBob is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Inverter capacity Bill0828 RV Systems & Appliances 4 05-26-2010 09:53 PM
CPAP Finhawk Winnebago Industries Owner's Forum 14 09-19-2008 06:00 PM
CPAP machines RocketDork Winnebago Industries Owner's Forum 26 08-06-2008 09:12 AM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:05 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.