Minimum voltage before AS10 shuts off?

[Night Train]

Thanks for reading!  I've got the Resmed AirSense 10 and their 12V DC power converter brick.  My question is about minimum voltage.  Does the AS10 sense low voltage and have an auto shutdown feature before the low battery voltage harms the AS10?  What is the voltage at which it shuts off?  As my 12V battery's charge wains through the night its voltage will drop.  As some point that low voltage may harm the unit.  

What is the unit's power demand without heat or water?

THANKS Guys!

[Nightynite]

Night Train, I don’t know if this will help but I use a 12volt 299 wh battery pack w/ battery meter.
I also have a A10 and run it with no humidifier and no heater hose. Only Passover humidity.
I have recorded 35 hrs. With 11% battery left and it was still going strong.

I think my battery pack has a safety mode so It won’t damage the unit or device when the battery gets to low.

[Night Train]

Thank you Nightytime.