- Battery technology: Lithium Ion Battery Pack, 4S2P
- Battery capacity: 99.4 Wh (Watt hours)
- Weight (battery alone): 15.5 oz (440g)
- Lifetime: approximately 300 charge / discharge cycle
- Warranty period: 6 months
Estimated run time: Manufacturer testing shows that the Extended Life Battery will power a Z1 CPAP 8.9 hours at 20 cmH2O. These results were obtained via bench testing under simulated operating conditions. Actual run time may vary due to machine settings, machine pressure, and personal breathing. Lower pressures will result in longer battery operating time.