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That is the strangest connector I have seen in a while.

cpap.com wants $165 for a 12V > 24V power adapter with that connector.

Wonder if Respironics designed a custom plug so you'd have to buy the overpriced accessory?

I have 24v, just a matter of getting it into the machine, but looking online I haven't managed to find a plug that looks like this to make my own cable, which would be simple otherwise.

I suppose in a power outage I could cut the plug off the external power supply and rewire it, but that solution lacks a certain elegance.

You could cut the cord and put a new connector on the cord stub with matching connectors on the old power supply and on your battery cable. If you use nice connectors it would look OK.

You could cut the cord and put a new connector on the cord stub with matching connectors on the old power supply and on your battery cable. If you use nice connectors it would look OK.

Ha. You're reading my mind. Though that solution lacks a certain elegance, I would do it before dropping $165 plus shipping.

Still, I'd rather find the plug. No big hurry, but I was spoiled by the nice civilized 12v plug in my old remstar APAP.

6PtStar wrote:OK folks this is what the 24 volt plug looks like for coconut needs to run her BiPap Legacy. Any one know of a source for something that looks like this



Jerry

That looks like a Cannon Plug - do a Google to see. Is it a screw on or 1/4 turn to lock?

Where's BB when ya need him?

That looks awful special to me, if you didn't have to use it much, I'd go with a good 12 volt to 120 volt inverter. The rub with the one from Cpap.com is it propritary and a up converter circuit, both making it cost more. Jim

I'd also be thingking APC that was powered by the bigger 12 volt batteries, mounted outside the APC. When my batteries fail in my APC Back-UPS NS 1250, I think that's what's going to happen to it.

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That looks like a Cannon Plug - do a Google to see. Is it a screw on or 1/4 turn to lock?

No, it's a straight push-in, and I should have noted, for scale, that it is the same size as a PS/2 keyboard or mouse plug, just with different pins.

That looks awful special to me, if you didn't have to use it much, I'd go with a good 12 volt to 120 volt inverter. The rub with the one from Cpap.com is it propritary and a up converter circuit, both making it cost more. Jim

I actually have an inverter, but after tropical storms here there can be several days of power outage. I have a couple of deep-cycle batteries I keep a float charge on for that, and they could be easily wired in series for 24v. You lose power to heat whenever you do a conversion, and I dislike the idea of converting from 12vdc to 110vac to 24vdc even more than I dislike the idea of converting from 24 to 12dc. Inefficient and kludgy, and the upshot is that it would not run as long. Also, while inverters of this wattage are relatively cheap - cheaper than $165 anyhow - I wonder whether the lack of real sine wave inversion would mess up the machine. Probably not since it's just going into a transformer. But still, I HAVE perfectly good 24vdc power, all I need is a wire and a plug!

I'd also be thingking APC that was powered by the bigger 12 volt batteries, mounted outside the APC. When my batteries fail in my APC Back-UPS NS 1250, I think that's what's going to happen to it

Does APC make a UPS which is powered by large externals? I use marine deep-cycle wet cells as the cheapest available.

I'm still gonna try finding that plug... and if I don't, I may chop the one off the transformer the first power outage we get.

You could go into the case, solder on a pair of wires to a polarized power plug and run it through the case to the 24 volt batteries. You would just have to be sure to keep the + & - correct and maybe a small fuse. That would be the simple way to do it. Jim

or you could simply cut that plug off the 24volt brick power supply leaving a 12" or longer pigtail, install a more standard plug on the cut ends with male to female plug to connect back to the power supply then making another piece that goes to the batteries in series, then you utilize the same plug and save yourself $165 bucks.

How hard would it be to open it up and install a 2nd, standard, power jack?

or you could simply cut that plug off the 24volt brick power supply leaving a 12" or longer pigtail, install a more standard plug on the cut ends with male to female plug to connect back to the power supply then making another piece that goes to the batteries in series, then you utilize the same plug and save yourself $165 bucks.

that's how I'm leaning.

How hard would it be to open it up and install a 2nd, standard, power jack?

I dunno. It doesn't look like it would like being opened up and it would fer sure void the warranty. Cutting the wire is probably the least invasive way to go - but buying a plug would still be the way in a sane world. Thumbs down to respironics for using this plug - it and the socket also feel fragile, not robust enough. Particularly since you need to pull the power to reset the settings, I'll need to do that at the transformer now so as not to bend a pin, which is a pain.

Just put the unit on a surge protected power strip, use the strip switch to power on and off for reset. Pluging and unpluging anything is hard on it. Jim