Hi bigrak, I haven't used any 12V adapter for my S8, but you should probably read this thread: http://www.cpaptalk.com/viewtopic.php?t=9828 billboltan did a lot of research on this, and he sums it up: A DC-12 does a number of things including managing variations in the battery terminal voltage and ...

My beef with the whole 12 volt convertor topic is - they don't last- I bought a dc-12 convertor a few years ago and I have used it maybe 6 times. The last time I went to use it on a camping trip, it did not work. I took it apart looking for an obvious fuse that had blown, but did not find one. I ju...

Any help ?

Any info. or link to an equivalent cig. adapter?
Thanks again.

Great post! This is the reason I joined this forum to figure out how I can get to use my resmed S8 on my elk hunting trip this October.

I am looking for a less expensive equivalent to the original resmed 12v cig. adapter to use in the camper for my Resmed S8 with humidifier. Any info. or direction, links would be grateful. Did a little reading here and read it has less power drain if you don't use the humidifier. Thanks for any repl...