AirSep 8-Cell External Battery

AirSep 8-Cell External Battery



✔︎ Delivers Extended Portable Use of the AirSep Focus (Requires Cable Adapter), FreeStyle, and FreeStyle5
✔︎ Built-in Belt Clip
✔︎ On-Board Battery Gauge
✔︎ Compatible with the AirSep Focus, FreeStyle, and FreeStyle 5


AirSep 8-Cell External Battery

Since the AirSep Focus doesn’t feature an internal battery, the external 8-cell battery is your ticket to a life filled with limitless freedoms.

Offering portable usage of the Focus for up to 3.5 hours, but if you use the DC supply to power the unit in your car you will conserve battery life for when you are away from a power outlet.

The Focus cable adapter is an absolute necessity in order to use the 8-cell battery with the AirSep Focus POC.

The external 8-cell battery is also a phenomenal way to supplement the internal battery life of the AirSep FreeStyle 3 and FreeStyle 5 portable oxygen concentrators.

Advantages of the AirSep 8-Cell External Battery:

  • Allows You to Spend More Time with Friends and Family
  • Keep Track of Battery Life
  • Features a Battery Gauge in 25% Increments
  • No Need to Carry the Battery
  • Clips onto Your Belt Loop or Fits into the Carrying Bag

AirSep 8-Cell Battery Specifications

AirSep Focus:

Flow Rate Battery Life
2 Up to 3.5 Hours

AirSep FreeStyle 3:

Flow Rate Internal Battery Life 8-Cell Battery Life
1 Up to 3.5 Hours Up to 6.5 Hours
2 Up to 2.5 Hours Up to 3.5 Hours
3 Up to 2 Hours Up to 3 Hours

AirSep FreeStyle 5:

Flow Rate Internal Battery Life 8-Cell Battery Life
1 Up to 3 Hours Up to 4 Hours
2 Up to 2 Hours Up to 2 Hours
3 Up to 1.5 Hours Up to 1.5 Hours
4 Up to 1.25 Hours Up to 1.25 Hours
5 Up to 1 Hour Up to 1 Hour

 *Battery Life is Dependent on the Patient’s Breath Per Minute (BPM)

Freshly Redesigned Carrying Case

The new carrying case for the AirSep Focus were designed with the external battery in mind, featuring two side pockets you can carry two batteries around for even longer usage of the Focus.

Carrying two batteries will also allow you to quickly change from a depleted battery to a fully charged one in a matter of seconds, reducing the time you go without your highly needed oxygen.

Stay on Top of Battery Life

Your day to day routine keeps your mind and body busy all day long it is often hard to keep track of how long it has been since your last charge.

The AirSep 8-cell battery keeps track for you, featuring a battery gauge, located at the top of the battery, it tells you instant battery stats by flashing an LED light next to the nearest 25% increment.

Fast and Easy to Charge    

The 8-cell battery will take up to 5 hours to fully charge a depleted battery, the best part is you can charge two batteries externally with the 2-bay desktop charger at once.

In order to charge the 8-cell battery, the 2-bay desktop external battery charge is an absolute must!

AirSep Focus External 8-Cell Battery Specs:


  • AirSep FreeStyle 3 Battery Life: Up to 3.5 Hours on Pulse Setting 2
  • AirSep FreeStyle 5 Battery Life: Up to 2 Hours on Pulse Setting 2
  • Product SKU Number: BT024-1

Additional information

Weight 2.0 lbs


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