I was talking with Old Salt ( a CPAP user)  about what I use for a battery setup for my CPAP machine when I  go paddling in the Q. He suggested I post it in the QJ Gear Forum.

In 2012 I bought a Lightweight Travel Lithium Battery Pack for ResMed CPAP Machine from a website   (You need to Login or Register

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I am not sure if the battery technology has gotten better since I purchased  this CPAP setup in 2012 but this Lithium Battery Pack has served me well. It is a bit on the expensive side $299 but it is the lightest system I could find. Right now on sale at  cpapxchange for $297.99

The unit consists of a 12 volt converter that plugs into 12 rechargeable Lithium ion batteries tied in series and then plugs into my Resmed9 CPAP machine. I take off the humidifier when I go paddling since it uses more battery power. I can get 2  nights sleep per battery pack averaging 16 hours total per battery pack. I bring along 4 lithium battery packs with me and they weigh about 1.5 lbs. each. I do not recharge them on my trip.

I found this system to be lighter than most battery setups but I am still hoping that I can someday get the weight down even further.  There is a new light weight travel CPAP machine called "Transcend" that is advertising on the radio that looks like a possibility.

3 years ago I was diagnosed with severe sleep apnea using a sleep test and my Resmed9 machine and my Resmed AirFit P10 mask has been a God send. I can't sleep without CPAP. I have tried oral devices etc. and these substitutes just don't measure up. 

I have used this set up the last 3 trips to Quetico and it has worked well. CPAP users may want to give it a try.

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