Thank you for pointing that out. It was interesting reading.

I was hoping that someone in this community would know someone in indegogo responsible enough to say wait a minute, this is not plausible. I took a look at indegogo's terms of service and found only this:

"If the Campaign is claiming to do the impossible or it's just plain phony, don't post it. "

Which is pretty weak.

But I suppose the old saw that 'a fool and his money are soon parted' still applies in the crowdfunding world...

And here's a -real- battery powered CPAP machine, taking a laptop-type lithium ion battery:

http://www.cpap.com/productpage/Hoffman-Laboratories-Breathe...