Checking the remaining battery charge

You can check the remaining battery charge of the rechargeable batteries of the headset and the charging case.

When you put on the headset

When you remove the headset from the charging case and put the headset units into both ears, the voice guidance indicating the remaining battery charge of the headset can be heard via the left and right units of the headset respectively.

“Battery about XX %” (The “XX” value indicates the approximate remaining charge.)

“Battery fully charged”

The remaining battery charge indicated by the voice guidance may differ from the actual remaining charge in some cases. Please use it as a rough estimate.

When the remaining charge becomes low

If a warning beep sounds and the voice guidance says, “Low battery, please recharge headset”, charge the headset as soon as possible.

When the battery becomes completely empty, a warning beep sounds, the voice guidance says, “Please recharge headset. Power off”, and the headset automatically turns off.

When you are using iPhone or iPod touch

When the headset is connected to an iPhone or iPod touch over an HFP Bluetooth connection, it will show an icon that indicates the remaining battery charge of the headset on the screen of the iPhone or iPod touch.

Illustration of the icons indicating the remaining battery charge

A: Remaining battery charge of the headset

The approximate remaining charge is shown at 10 different levels. B through E are display examples.

B: 100%

C: 70%

D: 50%

E: 10% or lower (requires charging)


The remaining battery charge of the headset is also displayed on the widget of an iPhone or iPod touch running iOS 11 or later. For more details, refer to the operating instructions supplied with the iPhone or iPod touch.

The remaining charge which is displayed may differ from the actual remaining charge in some cases. Please use it as a rough estimate.

When you are using an Android™ smartphone (OS 8.1 or later)

When the headset is connected to an Android smartphone via HFP Bluetooth connection, select [Settings] - [Device connection] - [Bluetooth] to display the remaining battery charge of the headset where the paired Bluetooth device is displayed on the smartphone’s screen. It is displayed in 10 different levels such as “100%”, “70%”, “50%”, or “10%”. For details, refer to the operating instructions of the Android smartphone.

The remaining charge which is displayed may differ from the actual remaining charge in some cases. Please use it as a rough estimate.

Checking the remaining battery charge of the charging case

  • When the headset is removed from the charging case or the lid of the charging case is opened or closed when the charging case is empty, if the indicator (orange) on the charging case lights up, the remaining battery charge of the charging case is approximately at 30% to 1%. The charging case cannot sufficiently charge the headset with this level of remaining battery charge.
  • When the headset is removed from the charging case or the lid of the charging case is opened or closed when the charging case is empty, if the indicator on the charging case does not light up, the remaining battery charge of the charging case is at 0%. The headset cannot be charged with the charging case in this case.

Hint

  • You can also check the remaining battery charge of the headset and the charging case with the “Sony | Headphones Connect” app. Android smartphones and iPhone/iPod touch both support this app.

Note

  • The remaining battery charge may not be properly displayed immediately after a software update or if the headset has not been used for a long time. In this case, repeatedly charge and discharge the battery multiple times to properly display the remaining battery charge.