The Z1™ and Z2™ battery is designed to be charged and ready for use when you're on the go. To ensure that your battery maintains a full charge, first allow time for a full charge (up to 10 - 12 hours). Be sure that the AC adapter is fully plugged into the PowerShell™ and wall outlet, and that the Z1™ and Z2™ is in 'standby-mode'- meaning when the device is plugged in but NOT in use/ being used for therapy.


Once the battery is fully charged (it will display four solid bars), be sure to disconnect it from the PowerShell™ and store separately, until you are ready to utilize battery power.  

For travel, we recommend allowing the battery to rest in the PowerShell™ cradle, but not pushing the battery all the way in to connect to the PowerShell™.  If the battery remains connected in the PowerShell™, the charge will deplete within 2-3 days.

If your battery is not fully charging:

  1. Unplug the PowerShell from the units AC adapter so that the device is powered from the battery only.
  2. Unplug the battery from the PowerShell, wait for 30 seconds, making sure that the device LCD powers off.
  3. Plug the battery back into the PowerShell and wait for the device to start up.
  4. Push the middle button to start the blower, do not attach any mask or tubing.
  5. Allow the device to run for at least 30 seconds, the “reminder’ should illuminate. The blower will be noisy and a lot of air will be pushed out of the patient interface. This is normal.
  6. Push the middle button to stop the blower after at least 30 seconds.
  7. Plug the PowerShell back into the device’s AC adapter and resume charging the battery pack.

The Extended Life and Overnight battery can take up to 10-12 hours to fully charge. The battery icon on the display will stop flashing when the battery is fully charged. Please note that even if the battery icon is showing 4 bars, this indicates that it is only at 75%. When the battery icon stops flashing, the battery is 100% charged.

Always store the battery separately from the PowerShell and if you are not using your battery on a continuous basis, please fully charge every 2-3 weeks, then remove from PowerShell.