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Replacing the battery in your product | QuietComfort® 25 Acoustic Noise Cancelling headphones
To replace the battery:
Note: When storing your product for an extended period of time, removed the battery.
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- Tilt the right earcup inward to access to the battery compartment door
- Gently press and lift the tab on the battery door to open it
- Remove the battery by tipping the headphones so the battery slides out
- Insert a new battery (positive end first)
- Close the battery door by gently pressing the tab on the door until it clicks into place.