(07-07-2015, 08:06 AM)Sleeprider Wrote: The Respironics machine runs on straight 12 volt power and is very efficient with startup power at about 2.5 amps and operating power less than 0.8 amps. It will use any 12 volt source, including deep cycle lead-acid, and very compact Li-ion batteries that can be recharged from solar or automotive alternators. There are a number of threads from people that use PRS1 machines on sail boats circumnavigating the globe, campers and RV users. For a permanent machine that can be taken off the grid, it's hard to beat.
I'd suggest narrowing your search, eliminating Resmed which operates on 24 volt power and has an integrated humidifier and wireless modem, and focusing on the PRS1 and Transcend units, and seeing what can be worked out. I can point you to some threads that discuss battery use of the PRS1 units, including the use of the Poweradd Pilot Pro 32000mAh Multi-Voltage (5V 9V 12V 16V 19V 20V) Li-Ion Backup Power Bank to run units up to 3-days without recharging and without any converter or adapter other than what is included (See Amazon). These batteries are not without some issues, but they are an example of what can work remarkably well as an alternative to expensive batteries sold specifically for powering a CPAP.
Thanks Sleeprider for that information. You certainly have me thinking.
I have found the DS560HS on the internet, I assume it is similar to what you use.
Would love to have a look at any links you can point me to.
Can I program this machine myself?
I also assume you use Sleepyhead software.
Looking forward to your reply.