I wonder if the 12V to 24V Resmed up converters are designed for quasi-continuous use?
Or, just intended for the occasional need.
I have the up-converter and a 12V AGM battery on a Battery tender. I'd need to do the switch-over manually.
Here on the left coast we haven't had outages since the early millennium; and those were "politically" motivated (IMO).
They are predicting outages this summer.
I have an Astron SS25M supply (somewhere in the pile). I wonder if it has the Voltage trim to float the battery using the PWRgate switch.