Battery in CPAP machines

There has to be a battery of some type in these machines, sort of like in your computer. You can set your S9 in the closet for a couple of months while you use the backup machine and when you break it back out for use the time is always right on the money. Something has to be holding that like a small wafer battery. Has anyone had any of these machines apart enough to see if there is a small battery in there. Maybe that explains why someones time is always off cause the battery is getting weak. It's just a thought that crossed my mind and contrary to some of my friends I do have a mind, not much but a little.

squid13 wrote:There has to be a battery of some type in these machines, sort of like in your computer. You can set your S9 in the closet for a couple of months while you use the backup machine and when you break it back out for use the time is always right on the money. Something has to be holding that like a small wafer battery. Has anyone had any of these machines apart enough to see if there is a small battery in there. Maybe that explains why someones time is always off cause the battery is getting weak. It's just a thought that crossed my mind and contrary to some of my friends I do have a mind, not much but a little.

I'm not sure how "wordy" of an answer you want besides....."yes, there is a battery in them".
I'm familiar with the older Legacy Respironics machines......Auto w/C-Flex and Pro 2 machines. I have replaced one of the batteries in one of mine (it was dead when I purchased from a seller on the CPAPAuction site three years ago). There was also a broken hose connector in it, but it was a "never used" machine and I was able to get the hose connector part (cheap), set the internal clock and I've been using it continuously now for three years.

I don't know what the newer machines use, but those older ones used a version of the "2032" wafer battery......similar to what you may see in a desktop computer motherboard. In the one I fixed, I unsoldered the "BR2032" battery from the main board and replaced it with a battery holder from an old computer motherboard (the "legs" to the solder holes are exactly the same distance apart), so now I can use the more common "CR2032" wafer batteries in it. Of course the date and time have to be reset, but I have the special cable and software to do that.
Those machines need to be set to Greenwich Mean Time to work with the Encore Pro software.
Also, those machines would lose almost two minutes per month off the set time, so eventually the time could be off by hours. Since I have the capabilities, I now reset mine on the first of every month so I can keep track of the time loss.


Den

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Thanks Den for the answer, be interesting to find out what kind of setup they have in the S9's.

Wulfman

Is the cable and software readily available. My system's clock is 9 minutes off and I really would like to be able to synch its data with my oximeter and heart rate monitor. I can set the clocks on them but not the Respironics 750P. The 9 minutes is an estimate and would require some experimentation to get an accurate value.

JDS74 wrote:Wulfman

Is the cable and software readily available. My system's clock is 9 minutes off and I really would like to be able to synch its data with my oximeter and heart rate monitor. I can set the clocks on them but not the Respironics 750P. The 9 minutes is an estimate and would require some experimentation to get an accurate value.

The cable and software that I have only work with the old Legacy and M Series machines which used the "smart card" (especially the cable). As I understand it, the newer System One machines use a different device/connection and I've never been able to see or find one of those.

I presumed you were asking about the System One, but if you ARE looking for the cable for the Legacy or M Series, do a Google search on "Sleep Link Communication Cable RP# 1007492". There have been a couple of medical supply houses that carried them. They were in the neighborhood of $110.00 (or a little less) when I bought some in 2010. I just checked and they're now $116.40 from Medexsupply(dot)com.

Respironics Auxiliary Signal Cables - SleepLink Card with Serial Cable
Model#: 1007492
Medex SKU: RES-1007492


Den

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