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Another camping question
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justMongo Offline

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Post: #11
RE: Another camping question
(06-18-2015 08:58 PM)GWild Wrote:  A 12V 18AH sealed lead battery is about $35. If your xPAP is 12V, and you have the 12V car adapter and mating plug for it, a clip to DC outlet cable and the battery are all you need. A common part number for this type of battery is UB12180 (12V18.0AH)... I saw a 35AH version for $85... but you don't need that much, but it would last longer.

You can run overnight on the $35 battery then recharge it with jumper cables while the engine idles along ... recharge will take 15 to 30 minutes on a healthy alternator.

I have a similar sized battery and it works quite well. The caveat is I paid more for my battery, and it is designed for deep cycle use. While the $35 battery is AGM, they are generally used for starting applications, but it'll probably last several camping trips used this way (think of it as a disposable multi-use battery). So if you have the DC cable to fit your xPAP, and can find the battery and the clip on DC outlet, you should be good to go. Just be sure to fully charge the battery before you leave home. You'd hate to wake up that first night to a new but dead battery.

The OP has an S9 which runs on 24 V DC; and it has a 3 prong DC plug.
Running from DC requires the 12 V DC to 24 V DC converter from ResMed. It get the Voltage to 24 and it provides the 3 prong DC plug.
That route adds about $100 just for their converter. I personally have one to operate on battery in the event of power loss.

I keep a 35 A-Hr scooter battery on a battery tender should I lose power here.

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.
06-18-2015 11:25 PM
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GWild Offline

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Post: #12
RE: Another camping question
Mongo - thx! I read the 24v part and kept talking 12v ... doh. Yeah, two of those 12v 18AH batteries in series is 24v 18AH... same energy as a 35AH single 12v setup, too. Just need the cables to hook it up - no converter required (if that plug is simple 24V DC).
(This post was last modified: 06-19-2015 02:43 AM by GWild.)
06-19-2015 02:42 AM
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Mark Douglas Offline

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Post: #13
RE: Another camping question
(06-19-2015 02:42 AM)GWild Wrote:  Mongo - thx! I read the 24v part and kept talking 12v ... doh. Yeah, two of those 12v 18AH batteries in series is 24v 18AH... same energy as a 35AH single 12v setup, too. Just need the cables to hook it up - no converter required (if that plug is simple 24V DC).

Nope.
Your remed requires a secret handshake so you have to buy the factory 12x24vdc adapter.

I use my PAP machine nightly and I feel great!
Updated: Philips Respironics System One (60 Series)
RemStar BiPAP Auto with Bi-FlexModel 760P -
Rise Time x3 Fixed Bi-Level EPAP 9.0 IPAP 11.5 (cmH2O)
06-19-2015 06:42 AM
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OMyMyOHellYes Offline

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Post: #14
RE: Another camping question
(06-19-2015 06:42 AM)Mark Douglas Wrote:  Nope.
Your remed requires a secret handshake so you have to buy the factory 12x24vdc adapter.

What MD said.

This is one reason I moved away from ResMed products in foavor of more patient friendly lines. They are SO passively agressively hostile towards their patient base whne they do crap like this...

OMMOHY
06-19-2015 07:12 AM
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Mark Douglas Offline

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Machine: Sys 1 (60) RemStar BiPAP Auto with Bi-Flex 760P Auto Bi-Level (Variabl
Mask Type: Nasal mask
Mask Make & Model: PR Wisp
Humidifier: PR Sys One heated
CPAP Pressure: RiseTime 3 Fxd E-9.0 / I-11.5
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Other Comments: Hashimoto's thyroiditis.

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Post: #15
RE: Another camping question
(06-19-2015 07:12 AM)OMyMyOHellYes Wrote:  
(06-19-2015 06:42 AM)Mark Douglas Wrote:  Nope.
Your remed requires a secret handshake so you have to buy the factory 12x24vdc adapter.

What MD said.

This is one reason I moved away from ResMed products in foavor of more patient friendly lines. They are SO passively agressively hostile towards their patient base whne they do crap like this...

OMMOHY

I would not be surprised at all to find the root cause is some Au gvt reg saying only approved devices can be used. I mean it seems they are being held up on cellular modem pending gvt approval. WTH should a cellular modem need gvt approval? Not like it is experimental tech....

I use my PAP machine nightly and I feel great!
Updated: Philips Respironics System One (60 Series)
RemStar BiPAP Auto with Bi-FlexModel 760P -
Rise Time x3 Fixed Bi-Level EPAP 9.0 IPAP 11.5 (cmH2O)
06-19-2015 07:27 AM
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GWild Offline

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Post: #16
RE: Another camping question
A serial link makes zero sense ... unless it is some odd power saving feature. Perhaps a simpler 'ON-OFF' function is at play? Anyone ever actually reverse engineer the pins to see what really happens?
06-19-2015 11:15 AM
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justMongo Offline

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Post: #17
RE: Another camping question
I would reverse engineer the power plug if I had a dead S9 to do it to.
It could be a remote Voltage sense line that feeds back to the regulator in the power brick.

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.
06-19-2015 01:21 PM
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