Bose QuietComfort 15 headphones Owner's Manual | Page 9

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Battery life and replacement
Although it varies by usage, battery life averages 35 
hours. The battery light indicator starts flashing when 
there are approximately 5 hours of battery life remaining.

When a replacement is needed, use a AAA alkaline 
battery (IEC LR03). 

Note: Remaining battery life may vary when using rechargeable 
batteries. NiMH batteries, composed of nickel metal hydride, 
are recommended.

Cleaning the headphones
Scheduled cleaning is not required. However, you can 
simply wipe the outside surfaces with a damp cloth, 
as needed. Also, be sure that the earcup ports are clear 
and that no moisture is allowed into the earcups.

Reattaching the earcup cushions 
If a cushion becomes partially or completely detached:

1. Push its mounting rim back into the earcup.

2. Press around the edge of the mounting rim, making 

sure it snaps into place under all eight tabs around 
the earcup.

Replacement parts and accessories
You can purchase accessories from your Bose

® dealer, 

at global.Bose.com, or by placing an order over the 
phone. See the inside back cover for contact 
information.

QC15 OG.book  Page 7  Thursday, February 10, 2011  4:55 PM