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Bose QuietComfort Ultra Earbuds

Sold from 2023 – present

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Charging your headphones

Find out how to charge the battery in your headphones so you can use them on the go.

Charging your earbuds and case

Charging the earbuds

  1. Align the charging contacts on the left earbud with the charging pins on the left side of the charging case.
    NOTE: Before charging, make sure the earbuds are at room temperature, between 46° F (8° C) and 102° F (39° C).
  2. Place the earbud in the case until it magnetically snaps into place. The earbuds status light glows according to the charging status.

  3. Repeat steps 1 – 2 for the right earbud.
    NOTE: The earbuds charge if the case is open or closed. 



Charging the case

CAUTION: Use this product only with an agency approved power supply which meets local regulatory requirements (e.g., UL, CSA, VDE, CCC).
  1. Connect the small end of the USB cable to the USB-C® port on the bottom of the charging case.

  2. Connect the other end to a USB-A wall charger (not provided) or computer. The charging case status light glows solid amber.
    NOTE: Before charging, be sure the case is at room temperature, between 46° F (8° C) and 102° F (39° C)

Plugging in overnight will not overcharge the battery

Lithium batteries have a built-in auto-off feature when a full charge is reached to prevent the battery from being overcharged. Even while still plugged in, the battery level will have to drop below a certain point to trigger the charging again.
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