Sorry, but it won't work with a C-pap. You'll need the concentrator for that. Check with your supplier, but I'm pretty sure I'm right.

I travel with my Inogen all the time. No problem at all

I call Aperia and they have me a night machine ready where I stay..Otherwise I have plugged my Inogenone g3 into the wall and the battery charges while I breathe and sleep. doesn't drain the battery because you are plugged into 110 volts

I have a Inogen And when I travel I take the battery out and plugged into the wall so I can sleep with it on at night, because I need to have the oxygen on when sleeping. Taking the battery out save the battery life.

Good morning
I would check with your dr
Or your cpap supplier
To make sure the portable has the pressure you need for your cpap

Hope you enjoy your day
Stay safe and dry
Slow and steady we go
Never alone