Voltage and amperage output Z1

Would someone please take a look at their power supply for the Z1 Auto and let me know what the voltage and amperage output is.

Thanks!

If Cpap.com carries it, you could call yourself... or are you in Denmark?

Not in Denmark right now, but that's where I left the power supply. It will take some time to get it here so I'm trying to find a solution without having to buy a new power brick since it costs over 70 bucks.

I don't have time for a more thorough search, but perhaps this will provide something more to go on.

The website https://www.cpap.com/productpage/z1-aut ... #specs-tab has two images of the bottom of the power supply. Unfortunately they are fairly low resolution:

https://1187b4d09c41350ddef3-8a2c38c894 ... dotcom.jpg
https://1187b4d09c41350ddef3-8a2c38c894 ... dotcom.jpg

HD60-6010

I can't quite make out the voltage. It's either 13, 15, or 18 volts, but, to me, it looks closest to 15V. Looks like 2.0A, but again that's difficult to read. The battery pack is 14.4 volts, though, so 15V makes sense.

Further, if you look at the power supply company you'll find they sell medical power supplies with similar part numbers:

http://www.powerpartners-inc.com/datasheets/PEAMD36.pdf

The PEAMD36-13-B1 is very similar in many respects. 15V, 2.0A, and the part number, though it's hard to make out, really does look like PEAMD36xx-13-B1. On the above PDF part sheet, the 13-B1 is what specifies the voltage and current, the 36 is the wattage, and I'm guessing this is a slightly custom part (probably a custom connector).

Given the battery voltage is 14.4, I'd say it's probably safe to apply 15V, as long as you have the polarity correct, and it has a good chance of working just fine.

That said, it's a $900 APAP machine. The risk to reward ratio appears to be awfully high to save $70.

Further, the battery shell does plug directly into the same port the power adaptor does:

https://1187b4d09c41350ddef3-8a2c38c894 ... pdotco.png

They shouldn't have another power supply between the battery and the machine (too much power loss, adds unnecessary weight, cost, and volume) so the machine will probably accept between 11.6 and 14.8V just fine given the battery specifications, and up to 15V given the power supply specs. The additional room and cost in the battery shell go toward the battery charger and necessary protection circuits (lithium ion requires a lot of oversight).

Again, none of this is definitive, you'd be better off waiting for someone else's clear picture of their supply, but in an emergency it could be worth the risk.

Well the car power adaptor really gives the game away:

http://www.bestcpapprice.com/12-V-DC-Po ... oCY7Lw_wcB

It's a straight cord. If there were a 36W power supply in there converting 12V to 15V it would be much larger than the plug, so while there may be some protection circuitry in that cord, I'm pretty sure it just outputs 12V to the cpap.

$40 for what amounts to a straight cord is pretty ridiculous, particularly since it's over half the cost of the full AC supply, but there you go.

Thank you, I appreciate your replies. I'm weighing my options.

Interesting, do you think there are any polarity issues with the plug? Ive read that for ResMed machines they had polarity reversed on the plug (on top of being 24V!).

I own a Resmed Airsense 10 autoset and use a combination of a 30,000 MAH battery which outputs 12V DC and the 12V->24V step up converter to power my Airsense10 on the go.

Battery with plug kit
http://www.amazon.com/Poweradd-Pilot-Pr ... B00DN0KBXU
http://www.ipoweradd.com/poweradd-pilot ... p1273.html

Resmed 12-24V stepup converter
https://www.cpap.com/productpage/c-100- ... erter.html

Assuming the Battery + plug kit has a compatible adapter plug for the Z1 auto it should work by itself since it can output 12V @ >2A. That's alot better than 350$ they want for the damn powershell + battery.