Take this with a grain of salt, because I don't have a battery system for my Z2 *yet*. The Z2 will run from the TalentCell batteries. The one I know others have used is this one: TalentCell 12v
I can't remember which cable you will need to connect the Z2 to the battery, but might be this one: TalentCell Cable
One of the issues (besides size) with the AirSense 10 is that it is a 24v system, vs the Z2 which is a 12v system, so consider that with your battery choices.
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