Top Review

    "Great to have especially if you are flying long distances and do not have access to a constant electricity supply."

    January 2, 2017

    Product Overview

    Manufactured by Human Design Medical.

    Product Features

    The Z1 Overnight Replacement Battery is a single replacement lithium ion battery which fits into the Z1 PowerShell used to power the Z1 CPAP Machine.

    To view and order the entire PowerShell assembly which includes the Overnight Battery, Battery Shuttle and PowerShell Battery Cradle with Lanyard visit this page: Z1 PowerShell with Battery.

    This is a replacement battery only and does not include the Z1 CPAP Machine, PowerShell, Shuttle or Cradle with Lanyard.


    This Product Includes...

    • 1 - Lithium Ion Battery

    Product Specifications

    Battery Pack Content: Lithium Ion

    Battery Weight: Approximately 8 ounces

    Battery Capacity: 45 Wh (Watt-hours)

    Battery Voltage: 14.4v (Volts)

    Estimated Run Time: Manufacturer testing showed that the Overnight Battery powered a Z1 CPAP Machine set to a pressure of 14cmH2O for 8 hours of use. Please note that actual battery run time will vary based on machine settings, machine pressure and personal breathing, with a manufacturer reported maximum run time of 14 hours. The manufacturer reports the battery will deliver at least a "full night" of use, which the manufacturer defines as 4 hours.

    Battery Operating Temperature Range: 41 to 95 degree Fahrenheit (5-35 degree Celsius)

    Estimated Charge Time of Battery If Fully Drained: Up to 8 Hours

    Charge Cycles Battery Life: Rated at 2/3 Capacity After 300 Charge Cycles

    Charge Shelf Life Before Recharging: 6 Months

    Overnight Battery Warranty Period: 9 Months

    FAA Compliance: Complies with RTCA/DO-160, Section 21, Category M always offers these services:

    • 8 am to 8 pm CST Toll Free Phone and Email Support
    • 24 hour access to our Support Forum
    • Learning Center for information on sleep apnea and cpap equipment
    • Consumer Purchasing Trends Reports
    • Warranty Services for all items purchased through
    • Insurance Compliant Invoices
    • Free Prescription Request System

    Important Tips

    FAA Compliance Letter: The Z1 Battery complies with FAA requirements. To view the FAA compliance letter for the Z1 Travel CPAP Machine, click here.

    Important Operation Notes:

    First Time Use: Fully charge the battery prior to the first use of the battery. Follow the manufacturer instructions for charging and storing the battery.

    Remove Battery From PowerShell When Not in Use: Do not store the battery inserted and connected to the PowerShell as the battery charge will be drained. Store the battery and PowerShell separately.

    Solar Charge: At this time the Z1 Machine and PowerShell CANNOT be charged using solar power. The manufacturer is working towards a solar charge solution, an expected date is not available.

    Replacement Parts

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