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Use this guide to replace a worn out or dead battery in your Bose Quiet Comfort 35.
If your battery is swollen, take appropriate precautions. For your safety, discharge your battery below 25% before disassembling your headphones. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair.
For this guide we recommend the use of a hairdryer or a heat gun. It’s manageable to disassemble your headphones with the use of an iOpener however the disassembly gets way more difficult.
You’ll need replacement adhesive and a soldering iron to loosen components during disassembly and and to reattach them when reassembling the device.
Your replacement battery may be a different size or capacity than your original battery. As far as we know all QuietComfort 35 replacement batteries will work with both the QuietComfort 35 I and QuietComfort 35 II.
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Grab the cushion of the left earcup and gently pull it to the center of the earcup to free it from the plastic clip holding it in place.
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Repeat this procedure for all clips that hold the cushion in place.
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Remove the left earcup cushion.
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If possible, turn on your device and test your repair before installing new adhesive and resealing.
To reassemble your device, follow these instructions in reverse order.
For optimal performance, calibrate your newly installed battery: Charge it to 100%, and keep charging it for at least two more hours. Then, use it until it shuts off due to low battery. Finally, charge it uninterrupted to 100%
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our Answers community for troubleshooting help.
If possible, turn on your device and test your repair before installing new adhesive and resealing.
To reassemble your device, follow these instructions in reverse order.
For optimal performance, calibrate your newly installed battery: Charge it to 100%, and keep charging it for at least two more hours. Then, use it until it shuts off due to low battery. Finally, charge it uninterrupted to 100%
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our Answers community for troubleshooting help.
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Hallo, tolle Beschreibung. Vielen Dank dafür.
kann man bei den Bose 700 NC auch den Akku tauschen ?
Würde mich sehr freuen, wenn das so wäre. Hat da jemand evtl bereits schon Erfahrungen gemacht. Könnte mir vorstellen, dass viele 700 NC jetzt auch in das Alter kommen, in dem der Akku schwach wird.
Fk Bose for making it so difficult! They all care about the environment so much, don’t they?!
Batteries should be easily replaceable by any customer by themselves! Ear pads as well. Bose makes it harder so you would throw away your $300 headphones when battery dies. So much waste, plastic and other harmful stuff.
EU mandated to use USB-C on all devices to reduce the waste. Batteries are more harmful. They should make it mandatory for batteries to be user replaceable on tech like headphones. Manufacturers are making disposable headphones in purpose, obviously. Like AirPods and other similar earbuds. 18-24 months and you’re forced to throw them away. They should offer cheap battery replacement for AirPods and like earbuds as well. Maybe trade in deals. $70-$90 a bud isn’t cheap replacement.
Companies are lying about the love for the environment to make us buy more and add more harmful waste to it.
Actually, you can buy the earpads separately, even from BOSE themselves. I’ve replaced mine 3 or 4 times already and it’s pretty straight forward
Thanks. Replaced my bose qc35 headphone battery. Works perfectly!
