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[Equipment] Battery Pack for travel
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Sleepster Offline
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Machine: ResMed AirCurve10 VAuto
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Location: Houston, Texas

Post: #21
RE: Battery Pack for travel
(06-08-2013 11:01 PM)Labrat0116 Wrote:  Is 35-45 AH for any PAP machine for (3) days run time ?

Would a Marine deep cycle battery and a 400 Watt Inverter do the job ?

I can't answer your question about run time. It depends on a lot of factors, the biggest one being the heated humidifier and hose.

But since you have a Respironics machine you don't need the inverter. Respironics machines run native on 12 volts DC, which is exactly what a lead acid battery delivers.

The only way to increase run time beyond that is having extra batteries or a solar charger. I plan to have two car batteries for extended outages so I can switch them back and forth between the car and the CPAP machine. Just make sure I have a full tank of gas in the car and I should be good for a couple weeks or so.

Sleepster
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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.
06-09-2013 12:28 AM
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OMyMyOHellYes Offline

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Machine: Respironics 560 Auto
Mask Type: Nasal mask
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Location: Texas

Post: #22
RE: Battery Pack for travel
(06-09-2013 12:28 AM)Sleepster Wrote:  
(06-08-2013 11:01 PM)Labrat0116 Wrote:  Is 35-45 AH for any PAP machine for (3) days run time ?

Would a Marine deep cycle battery and a 400 Watt Inverter do the job ?

I can't answer your question about run time. It depends on a lot of factors, the biggest one being the heated humidifier and hose.

In an emergency, I would ditch the use of heated humidification.

As it stands, I expect I can get around 5-6 nights out of a 35-39AH SLA battery using the ResMed S9 w/ DC converter and NO heated humidifier (~0.5 amp draw (0.46-0.55*) @ 9 cm (my average) assuming a 50% battery reserve for variable factors not necessarily known (age, cycles/wear, actual charge level when placed in service)).

If I used the H5i humidifier at "3" that ~6 night power source shrinks to a little over an expected one and a half nights (~1.8 amp draw (1.62-2.03*)). At a setting of "6" (~4.9 amp draw(4.84-4.99*) then I expect that ~6 night power source shrinks to less than FIVE HOURS.

If I went full bore H5i + ClimateLine tubing at 30 deg C (~5.3 amp draw (5.08-5.58*), then I expect to get FOUR HOURS.

YMMV. Note that use of an inverter will also significantly eat into your power and shorten run time. Get a DC power cord as Sleepster suggested to maximize your energy efficiency running off batteries.

OMyMyOHellYes

*Power draw source: estimated based on ResMed Technical Services Battery Guide (2011-10), p. 19
(This post was last modified: 06-09-2013 11:10 AM by OMyMyOHellYes.)
06-09-2013 10:37 AM
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jscholz Offline

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Machine: respironics system one
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Post: #23
RE: Battery Pack for travel
I've been using a owl-12-266 lithium battery for backpacking and traveling. It weighs about 5 pounds. I've used it for up to 4-5 nights on a single charge, no humidifier, at high elevation and elsewhere. My pressure is 9.0. I also use it to charge my phone, power my laptop with a inverter, etc. It gives me flexibility to use my cpap and let me and my wife sleep well in the wilderness, etc.
06-11-2013 05:52 PM
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JJJ Offline

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Machine: ResMed S9 Autoset
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Post: #24
RE: Battery Pack for travel
(06-11-2013 05:52 PM)jscholz Wrote:  I've been using a owl-12-266 lithium battery for backpacking and traveling. It weighs about 5 pounds. I've used it for up to 4-5 nights on a single charge, no humidifier, at high elevation and elsewhere. My pressure is 9.0. I also use it to charge my phone, power my laptop with a inverter, etc. It gives me flexibility to use my cpap and let me and my wife sleep well in the wilderness, etc.

That sounds like a good deal. Where did you get it and how much did it cost?
06-11-2013 11:29 PM
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Chumley Offline

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Joined: Oct 2013

Machine: Resmed S9 Vpap Auto
Mask Type: Nasal mask
Mask Make & Model: Swift FX Nano
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Sex: Male
Location: Northern NJ

Post: #25
RE: Battery Pack for travel
I am a little late to this party, but my last machine and my present machine run on 120-12V adapters . My auto M adapter is rated 0.415 Amps at 12V DC.

I have run it and my previous machine on 12V directly from the battery.

Any 12V to 120V inverter will use extra power, a waste when it doesn't need to be converted.

I use an 85AH deep discharge Marine Battery (Largest I could find) lead acid battery. Next time around I will use an Optima SLA battery. The Blue Top Optima is a deep discharge battery, completely sealed. I have a yellow top optima in my truck, and it has performed very nicely. No vented fumes either. My terminals are as clean as the day I installed it 2 years ago.

I am active in Boy scouting, and use the battery (heavy to lug around) on camping trips.

For home use, a sealed lead acid battery is clean and weight is not an issue. For home power loss backup, it works fine.
10-24-2013 07:02 PM
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Sleepster Offline
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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: #26
RE: Battery Pack for travel
(10-24-2013 07:02 PM)Chumley Wrote:  For home use, a sealed lead acid battery is clean and weight is not an issue. For home power loss backup, it works fine.

Welcome to the forum, Chum. Do you keep your home battery connected to your CPAP continuously? The reason I ask is that I have one of those computer type UPS so that when the grid goes down during the night I can just sleep through it. I'd like to be able to do the same with a larger lead-acid battery and connect it directly to my CPAP machine, but I don't know how I'd be able to keep it charged all the time.

Sleepster
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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.
10-24-2013 08:45 PM
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trish6hundred Offline

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Machine: Resmed S9 AutoSet for Her
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Post: #27
RE: Battery Pack for travel
Hi Chumley,
WELCOME! to the forum.!

trish6hundred
10-26-2013 07:52 PM
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Labrat0116 Offline

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Machine: RESPIRONICS DS950HS SV System One 50 Series
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CPAP Software: Not using software

Other Comments: Complex (Central and Obstructive) Sleep Apnea, Type 2 Diabetic

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Location: Troy, Ohio

Post: #28
RE: Battery Pack for travel
(10-24-2013 08:45 PM)Sleepster Wrote:  I'd like to be able to do the same with a larger lead-acid battery and connect it directly to my CPAP machine, but I don't know how I'd be able to keep it charged all the time.
Use a small battery trickle charge like the one below.

[Image: gas-scooter-parts-12-volt-2-0-amp-battery-trickle-charger-3.jpg]
(This post was last modified: 08-27-2014 08:23 AM by Labrat0116.)
08-27-2014 08:21 AM
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Terry Offline

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Machine: Philips Respironics RemStar Auto with A-Flex (560P)
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Post: #29
RE: Battery Pack for travel
(06-09-2013 10:37 AM)OMyMyOHellYes Wrote:  YMMV. Note that use of an inverter will also significantly eat into your power and shorten run time. Get a DC power cord as Sleepster suggested to maximize your energy efficiency running off batteries.

The only reason I use the inverter is because I've been known to be stupid and hook up the cables backwards.

If you hook up the inverter backwards, you either destroy the inverter (the cheap model) or a light comes on and says "you're stupid" (the next model up).

If you hook up your machine backwards, it's gone.

Terry
08-27-2014 11:14 AM
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mchad Offline

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Machine: Resmed S9 Autoset
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Post: #30
RE: Battery Pack for travel
For the campers, pick up a folding 25w solar panel - they will put about an amp per hour of good sun back in your battery. I use 2 50w panels on my boat and I get about 4-5 amps/hr charge in direct sun. That's enough to offset the draw from my fridg, my radio use and top off the 8 amps or so my boat-pap uses per night. After a weekend of unscrupulous power usage I end up down only about 20ah of my 300ah capacity. I LOVE solar.
08-27-2014 03:30 PM
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