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[CPAP] Deep Cycle Battery
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shahn Offline

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Machine: Resmed Airsense 10
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Post: #1
Deep Cycle Battery
I am going camping for a week and want to know what type of deep cycle battery I should buy for a Resmed Airsense 10. I will not have much access to electricity, so I need one that will last as long as possible. Thanks!
07-28-2015 12:05 PM
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Sleeprider Online
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Posts: 3,369
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Machine: Resmed Aircurve 10 Vauto
Mask Type: Nasal pillows
Mask Make & Model: Resmed Airfit P10
Humidifier: Resmed Climateline
CPAP Pressure: Auto Bilevel 18/9, PS 3
CPAP Software: ResScan SleepyHead EncoreBasic

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Sex: Male
Location: Where they make Respironics

Post: #2
RE: Deep Cycle Battery
What kind of travel is this? Lower priced batteries are heavy. Lightweight lithium batteries are expensive and have other drawbacks. Your machine is 24 volts and requires an adapter to use a 12 volt battery. Take a look at the possibly related threads under this post, your answer may be in an existing thread.

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07-28-2015 12:15 PM
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jingo Offline

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Post: #3
RE: Deep Cycle Battery
Since you have a machine that uses 24 volts you can wire two 12 volt batteries in parallel for 24 volts. Thats a great option since you wont require an inverter that would cut out at when your battery falls below 11.7 volts for a 12 volt battery and converting back to dc would be a waste. If your machine has a heated humidifier you may need to contact the manufacture for power requirnments at your humidity setting to determine battery size.

If no humdification you could buy any two deep cycles and wire in parallel and they would last a week.
07-28-2015 01:45 PM
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GingerMan512 Offline

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Machine: ResMed Airsense 10 Auto
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CPAP Software: SleepyHead

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Sex: Male
Location: Austin Texas

Post: #4
RE: Deep Cycle Battery
I have the same machine. Using ResMed's battery guide I determined that to run my machine for 8 hrs I needed a 49ah battery. This takes into account that you dont run these below 50%. So to run it two nights I wanted a 100+ ah battery. I'm buying the battery below. That will run it for a bit over 16 hours with the humidifier and heated hose on.

ResMed battery Guide:
http://www.resmed.com/us/dam/documents/a...lo_eng.pdf

Battery
[commercial link removed per Apnea Board rules]

You will also need this DC converter:
[commercial link removed per Apnea Board rules]

I'd recommend putting it in a battery box for safety:
[commercial link removed per Apnea Board rules]


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To maintain our status as an educational organization, the only commercial links allowed in this forum are to CPAP-related manufacturer websites. This is stated in the Apnea Board Rules with details given in the Commercial Links Policy section. As a suggestion, you may wish to tell members to "Google Product X" to get them to your product selection without posting a direct commercial link.
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(This post was last modified: 07-28-2015 05:10 PM by GingerMan512.)
07-28-2015 05:06 PM
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archangle Offline
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Machine: ResMed S9 AutoSet
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Post: #5
RE: Deep Cycle Battery
(07-28-2015 01:45 PM)jingo Wrote:  Since you have a machine that uses 24 volts you can wire two 12 volt batteries in parallel for 24 volts.

NO YOU CAN'T!!!!!

The ResMed S9 and A10 machines will only work if connected to their own AC power supply or their overpriced DC-DC converter. There are extra wires apart from the power wires and the machine will refuse to work if it doesn't see the signals it wants on these other wires.

If you want to work on DC power, you'll need an inverter and the AC supply or the separate DC-DC converter. Note that S9 and A10 machines use different DC converters. The DC converters will run off of 12 or 24V, but there's not a real advantage to 24V.

BTW, ResMed says you can run the S9 off of an inverter, but doesn't say that for A10 machines. They don't specifically forbid inverters, but the document that mentions inverters for S9 machines only lists the DC converter for A10 machines.

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07-28-2015 06:20 PM
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foss Offline
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Posts: 203
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Machine: ResMed Autosense 10
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Post: #6
RE: Deep Cycle Battery
Archangle,

Please don't consider me confrontational. I have a amount of experience with electronics both as a professional and a lifetime hobby. The quality and features of the ResMed DC-DC converter make it worth the cost. I paid less than $100 shipped. I use it full time with an AGM battery and a BatteryTender. The power goes off briefly several times a month where I live. The power went off a couple of nights ago. Now that I have this backup system I am not forced to wake up and turn my A10 back on. From my initial experimentation, the battery should run my setup at least two nights without a recharge. The ResMed DC-DC converter is more efficient than a home brew system I was designing. It is also has a battery protection circuit that is very useful.

Just my 2 cents worth.

Jeff

Sleep is worth the effort.
07-28-2015 07:23 PM
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parkerdt Offline

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Joined: May 2015

Machine: ResMed A10 AutoSet
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CPAP Software: SleepyHead

Other Comments: I alternate between WISP and fabric Nuance - like both!

Sex: Male
Location: Mebane, NC

Post: #7
RE: Deep Cycle Battery
Well, 2 12-volt would need to be in Series for 24 volts Wink The ResMed DC-DC converter will run off 12 or 24 volts. so either setup would work; just gotta know what the voltage is to set the converter correctly.
07-28-2015 07:32 PM
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pholynyk Offline

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Machine: ResMed AirSense 10 APAP
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CPAP Pressure: 11-17
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Sex: Male
Location: Ontario, Canada

Post: #8
RE: Deep Cycle Battery
@ foss --- Well, you did say you would wire two 12V batteries in _parallel_ to get 24V.... I'm sure you meant to write _series_...

I think that is what he was shouting about :-)

Phil, who knows which end of a soldering iron to grab... :-)
07-28-2015 07:33 PM
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trish6hundred Offline

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Machine: Resmed S9 AutoSet for Her
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Post: #9
RE: Deep Cycle Battery
Hi shahn,
WELCOME! to the forum.!
Much success to you with your CPAP therapy.

trish6hundred
07-28-2015 07:40 PM
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