Does anyone know of a new backup battery available for the ResMed S9 Autoset that can operate for 3 days on a single charge? My sleep doc saws there is one available but she couldn't find it online...and neither can I. It is supposed to be flat in shape and costs around $400.
I combed the ResMed site for information about the battery. It looks like they either have one, or have plans for one, but there was no part number available.