Breas Z2 Extended Life Overnight Battery (For Z1 or Z2)

The Breas Z2 Extended Life Battery is a rechargeable lithium-ion battery pack that integrates with the Breas PowerShell Module to power your Z1 or Z2 CPAP machine without a wall outlet. It gives you extra therapy time for travel, camping, or anywhere you can't plug in.

Is This the Right Battery for You?

This is worth adding to your kit if you already own (or are also purchasing) the Breas PowerShell Module and want extended runtime beyond what the original Z1 battery provides. This battery does not work on its own — the PowerShell Module is required and sold separately. If you don't yet have a PowerShell, see the Breas Z2 PowerShell Module, which includes this battery in one bundle.

Key Features at a Glance

• 99.4 Wh, 14.4V lithium-ion battery pack
• Manufacturer-tested to power a Z1/Z2 CPAP for 8.9 hours at 20 cmH2O
• 1–2 full nights of runtime per charge, depending on pressure settings
• Compatible with all Z1 and Z2 series CPAP machines
• Rated for approximately 300 charge cycles
• Compact and lightweight at 15.5 oz.
• Requires the Breas PowerShell Module (sold separately) to function

Great for Travel

Take this battery on a plane for overseas travel, in a backpack for overnight camping, or in a saddlebag for a motorcycle road trip — anywhere you need CPAP therapy without reliable access to an outlet.

The PowerShell Is Required, Sold Separately

This battery module does not connect to or power your Z1 or Z2 machine on its own. You'll also need the Breas Z2 PowerShell Module, which houses both your CPAP machine and this battery together as a single integrated unit. If you don't already own a PowerShell, it's often more cost-effective to purchase the PowerShell bundle (which includes this same battery) rather than buying each separately.

How to Charge the Extended Life Battery

1. Insert both the CPAP device and the Battery Module into the PowerShell.
2. Plug the AC power supply into an outlet.
3. Place the machine in standby mode (the display should read 0.0).
4. Wait up to 8 hours for a full recharge if the battery is fully drained.

Estimated Battery Run Time

Manufacturer testing shows this battery will power a Z1 or Z2 CPAP for 8.9 hours at 20 cmH2O. Actual runtime will vary based on your specific machine settings, therapy pressure, and breathing pattern — lower therapy pressures generally extend runtime, while higher pressures shorten it.

Specifications

Important Notes

• For longer operating times, fully charge the battery before its first use.
• Refer to the manual included with your equipment for complete care and use instructions.
• This battery requires the Breas PowerShell Module, sold separately.
• Compatible with all Z1 and Z2 series CPAP machines.

Complete Your Z1/Z2 Power Setup

Get the required Breas Z2 PowerShell Module if you don't already have one. Round out your setup with the Breas Z1 and Z2 Power Supply for standard AC charging, the Breas Z1/Z2 Polyester Filter, and the Breas Heat Moisture Exchange for Z2 for waterless humidification while traveling. See more from the brand on the Breas brand page.

Frequently Asked Questions

Can I use this battery without the PowerShell?

No. This battery module requires the Breas PowerShell Module to connect to and power your Z1 or Z2 machine. The PowerShell is sold separately.

How long will this battery power my CPAP?

Manufacturer testing shows 8.9 hours at 20 cmH2O, translating to about 1–2 full nights per charge depending on your pressure settings. Lower pressures extend runtime.

How long does it take to recharge?

Up to 8 hours if the battery is fully depleted.

How many times can I recharge this battery?

It's rated for approximately 300 charge cycles on average before capacity noticeably declines.

Is this compatible with both the Z1 and Z2?

Yes. This battery is compatible with all Z1 and Z2 series CPAP machines when used with the PowerShell.