Back from many summer time activities.
Here is a picture of my tent CPAP set-up. (About a month ago in the high Sierras.)
http://picasaweb.google.com/lh/photo/_g ... directlink
Starting in the upper left-hand corner and moving clockwise...
The tent wall
A Interstate deep-cycle RV battery (overkill for this trip. I could have gotten away with a pair of 7 A-hr gel cells)
A PowerBright pure sinewave inverter (200-300W, also overkill)
Slimline hose
My knee
Quatro full face mask
ResMed machine
In the middle is a bunch of DC wiring with Anderson PowerPoles (the amateur radio folks will recognize).
I had no problems with the set-up. Other than needing to roll out at 4:30AM to do what I went for.
Hope this is "enlightening"
SleepyT