If you can deal with having your humidity and heat settings fairly low,, then you can certainly use a battery backup.. I built one this summer using a 35 amp hour battery, and I found that it could actually run for several nights with my humidity setting on two or three. Above that and the battery ...

There is a way to turn off both the humidity and the heated hose in the clinical setup menu area of your machine. So it can be turned off if you can do without extra moisture or heated air. Or are you saying you absolutely need the extra moisture and heated air??? Both of which are going to suck a ...

it's an enormous thread, but you could start wading through it-

Thanks Zonker for giving me the link! I'm sure I can find some answers there.

I'm doing research for purchasing a battery backup for a Resmed S9 /H5i for use during power outages. I need to be able to use humidity and a heated tube (no way of turning that off). Please share your experience with runtimes that you have used with your machine. Thanks! EDIT: I've had lots of real...