Post Reply 
Camping battery Cpap set up
Author Message
SuperSleeper Offline

Administrators

Posts: 9,970
Joined: Feb 2012

Machine: PR System One REMstar Auto (DS560)
Mask Type: Nasal pillows
Mask Make & Model: ResMed Mirage Swift II
Humidifier: none
CPAP Pressure: 12.5 - 18.5 cmH20 (auto range)
CPAP Software: SleepyHead

Other Comments: Have diabetes Type II

Sex: Male
Location: Illinois, USA

Post: #11
RE: Camping battery Cpap set up
I wouldn't use any type of inverter for a newer ResMed CPAP/Humidifier combo... unless you have large capacity batteries and cost is no factor for you. Like Arch says, you need a pure sine wave inverter (more expensive than the usual consumer-level modified sine wave inverters) and you're still going to lose power in the inversion process.

By the time you spend that money, you probably would have been better off purchasing a ResMed converter unit that's specifically designed for your machine. That's what I did and it works great. Less worries and less power consumption tham going the inversion route.

Coffee

SuperSleeper
Apnea Board Administrator
www.ApneaBoard.com


INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.

11-25-2012 10:39 AM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
Sleepster Offline
Wiki Editor
Moderators

Posts: 4,994
Joined: Feb 2012

Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #12
RE: Camping battery Cpap set up
(11-25-2012 10:39 AM)SuperSleeper Wrote:  I wouldn't use any type of inverter for a newer ResMed CPAP/Humidifier combo... unless you have large capacity batteries and cost is no factor for you.

And there's really no reason to use an inverter on a Respironics machine as they run directly off 12-volt DC electricity.

Sleepster
Apnea Board Moderator
www.ApneaBoard.com


INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
11-25-2012 01:31 PM
Find all posts by this user Post Reply Quote this message in a reply
SuperSleeper Offline

Administrators

Posts: 9,970
Joined: Feb 2012

Machine: PR System One REMstar Auto (DS560)
Mask Type: Nasal pillows
Mask Make & Model: ResMed Mirage Swift II
Humidifier: none
CPAP Pressure: 12.5 - 18.5 cmH20 (auto range)
CPAP Software: SleepyHead

Other Comments: Have diabetes Type II

Sex: Male
Location: Illinois, USA

Post: #13
RE: Camping battery Cpap set up
(11-25-2012 01:31 PM)Sleepster Wrote:  And there's really no reason to use an inverter on a Respironics machine as they run directly off 12-volt DC electricity.

Yep, that's the one nice thing i liked about my old pre-2007 REMstar Pro with C-Flex... had a simple cable that attached directly to the 12-volt battery.

SuperSleeper
Apnea Board Administrator
www.ApneaBoard.com


INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.

11-25-2012 04:48 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
Crog Welly Offline

Members

Posts: 4
Joined: Oct 2012

Machine: Resmed S8 Autoset Vantage
Mask Type: Nasal pillows
Mask Make & Model: Resmed Swift FX
Humidifier: Resmed H4i
CPAP Pressure: 4-11
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #14
RE: Camping battery Cpap set up
Sorry for delay is responding and many thanks for input from everybody.

PaulaO2 .
I have used this set up before. I have been able to get 7 hours out of it in the past.

SuperSleeper
I am not using a humidifier. I think that I have probably run the battery down to a low state of charge in past camping usage as you describe. Last time I used it was 5 days in a row at a campground charging the battery up during the day. I lost ground each day as the battery came back with less and less charge at the end of the daytime charge cycle. I bet it gradually dug deeper and deeper into the battery charge level and maybe did permanent damage to the battery. The Booster Pac ES2500 has its own ac wall charger and circuitry that allows you to keep the battery charging 24/7. I think these engine starter batteries do not have the right design characteristics and are probably not optimized for a 2amp 8 hour draw.

Bryank1
Yes indeed current draw without humidifier is 1.4 Amps at 12v dc per SuperSleeper ResMed battery link. So it should be possible to get 10 hours out of it. But I think SuperSleeper is right I need a new bigger battery.

ArchAngle
It is a MSW inverter but I am not running the humidifier.

So I will take your collective advice and get a ResMed DC converter and get a new battery.

So much for the Li-Ion 7.8 Ah camping battery packs I guess they will hardly run the machine for anything like long enough. These deep cycle abtteries are heavy so I am just going to have to lose weight and go out without the machine for a few nights.

Thanks everybody.


Crog
11-25-2012 06:06 PM
Find all posts by this user Post Reply Quote this message in a reply
PaulaO2 Offline
Wiki Editor
Moderators

Posts: 8,065
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #15
RE: Camping battery Cpap set up
Quote: I think these engine starter batteries do not have the right design characteristics and are probably not optimized for a 2amp 8 hour draw.

And there is the problem. You can't use an engine starting battery, like what is in your car or truck. You need a "deep cycle" or "marine" or "wheelchair" battery.

PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
11-25-2012 08:34 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
Sleepster Offline
Wiki Editor
Moderators

Posts: 4,994
Joined: Feb 2012

Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #16
RE: Camping battery Cpap set up
(11-25-2012 08:34 PM)PaulaO2 Wrote:  
Quote: I think these engine starter batteries do not have the right design characteristics and are probably not optimized for a 2amp 8 hour draw.

And there is the problem. You can't use an engine starting battery, like what is in your car or truck. You need a "deep cycle" or "marine" or "wheelchair" battery.

For occasional use you can use your car battery. It just won't hold up as long as a deep-cycle battery if you keep discharging it too far.

The only difference is that a deep-cycle battery has thicker lead plates.

Sleepster
Apnea Board Moderator
www.ApneaBoard.com


INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
11-25-2012 09:13 PM
Find all posts by this user Post Reply Quote this message in a reply
archangle Offline
Wiki Editor
Advisory Members

Posts: 3,159
Joined: Feb 2012

Machine: ResMed S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: ResMed Swift FX
Humidifier: ResMed S9 H5i
CPAP Pressure: 16-20
CPAP Software: ResScan SleepyHead EncoreBasic

Other Comments: Happy PAPper

Sex: Undisclosed
Location: USA

Post: #17
RE: Camping battery Cpap set up
(11-25-2012 06:06 PM)Crog Welly Wrote:  Last time I used it was 5 days in a row at a campground charging the battery up during the day. I lost ground each day as the battery came back with less and less charge at the end of the daytime charge cycle. I bet it gradually dug deeper and deeper into the battery charge level and maybe did permanent damage to the battery. The Booster Pac ES2500 has its own ac wall charger and circuitry that allows you to keep the battery charging 24/7. I think these engine starter batteries do not have the right design characteristics and are probably not optimized for a 2amp 8 hour draw.

I think the charger that comes with the battery is optimized to not damage the battery, not to recharge quickly. Normally, you use the jumper battery once in a great while and have plenty of time to recharge it again before you need to recharge it. Also, you usually won't run it down that far before recharging.

Get the free SleepyHead software here.
Useful links.
Click here for information on the main alternative to CPAP.
If it's midnight and a DME tells you it's dark outside, go and check it yourself.
11-25-2012 09:37 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  My battery backup setup GeoffD 278 22,207 10-27-2016 05:28 PM
Last Post: Sleeprider
  Battery for Airplane Travel EmilySleeps 5 505 09-16-2016 02:00 PM
Last Post: PoolQ
  Pilot-24 CPAP Battery System from Medistrom sonicboom 15 4,573 09-16-2016 11:07 AM
Last Post: DSchabel
  [Equipment] Camping for 7 days - AirCurve 10 ASV - battery power? Grooves McFly 21 2,770 08-31-2016 01:29 AM
Last Post: Maskup Sleepwell
  [Equipment] Battery usage with CPAP (S7 and A10) MrGadget 10 762 08-26-2016 06:24 AM
Last Post: Bhante
  Camping and Travel 0rangebear 12 1,351 07-19-2016 01:15 PM
Last Post: MrGadget
  [CPAP] Battery powered unit for motorcycle camping David Petersen 9 3,748 07-19-2016 12:55 PM
Last Post: MrGadget

Forum Jump:

Who's Online (Complete List)