Thank you so much!
I understand the power outage concern, we have a generator and a while back when we were doing some other remodeling had it hardwired into the house, so that we can just switch the circuit breaker to a special mode during power outages that runs my room and a few other select areas, like the refrigerators.
My old ventilator had a cigarette lighter adapter and ran off large batteries as well, which were clunky to deal with. I really like that the batteries for VOCSN are contained within the dimensions of the device itself. They do not last quite as long as the large battery (time depends on therapies being used and intensity of settings), but they are easily swapped out and it is easy to have several sets. They can be charged on a desktop charger separate from VOCSN. With multiple sets of these you can have a battery runtime that is as long as you want or need to carry out activities away from power sources.
Have you heard of GPB breathing? It is a technique that you can use during a disconnect, or power failure if needed, which can help reduce some of that anxiety.
Thank you for the welcome!