I enjoy going camping and just recently bought the Z1 Auto for its compactness.
My BPS C-100 battery does not work that well with this unit in the sense that the Z1 is a 14.4 volt machine and the C-100 is 12 volt battery. The Z1 works for a few hours on this battery then shuts off, probably to due to a low voltage protection circuit built into the Z1. The battery works great on my DeVilbiss IntelliPAP machine.
I found a site the sells Lithium Ion batteries that I think would be great for the Z1.
However here comes the $64,000 question. The batteries that I an interested in are 14.8 volts and the Z1 is a 14.4 volt machine. Will the additional 4 tenths of a volt kill the Z1?????