Introduction

This guide covers the QuietComfort 25 battery removal and replacement.

Warning. Sometimes, batteries and the compartments they come into contact with can become corroded. Corrosion appears as chalky-white or green. If you see that the battery or battery compartment is corroded, do not allow it to come into contact with your skin or eyes. Alkaline batteries can leak potassium hydroxide, an agent that is capable of burning, corroding, or destroying tissue.

Image 1/2: The battery compartment is located on the top of the right-side earpiece, accessible via the latched door. Image 2/2: The battery compartment is located on the top of the right-side earpiece, accessible via the latched door.
  • Locate the side designation in the interior of the earpiece.

  • The battery compartment is located on the top of the right-side earpiece, accessible via the latched door.

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Image 1/2: Sometimes, batteries or the terminals they come into contact with can become corroded. Corrosion will appear as chalky-white or green. Image 2/2: If the compartment is not clean--coated with debris or corroded--use a cotton swab to carefully remove debris or corrosion from the terminal corrosion.
  • Warning. Do not allow battery corrosion to come into contact with your skin or eyes.

  • Sometimes, batteries or the terminals they come into contact with can become corroded. Corrosion will appear as chalky-white or green.

  • If the compartment is not clean--coated with debris or corroded--use a cotton swab to carefully remove debris or corrosion from the terminal corrosion.

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Image 1/1: Once matched to the diagram, the battery can be inserted.
  • Insert a new battery. Make sure that the polarity of the battery is aligned correctly to the diagram on the inside of the cartridge.

  • Once matched to the diagram, the battery can be inserted.

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Conclusion

When finished with this guide process, the Bose QuietComfort 25 should be able to be played with the functioning noise-cancelling feature.

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