Replacing battery in Bose QC35

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Bose QuietComfort 35

Bose's first wireless noise-canceling headphones, praised for their industry-leading noise cancelation technology and comfort. Released in June of 2016.

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Georgey @georgey51439

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Replacing battery in Bose QC35

I was wandering through the Internet to see if it is possible to disassemble to fix Bose QuiteComfort 35, as I don't like to buy unfixable electronics, and I was shocked with how little information I found regarding to fixing or disassembling those super-popular headphones.

I found the following tear-down on Reddit, and got to the conclusion that Bose made sure that it will be practically impossible to disassemble them without some heavy machinery:

What do you think? Will we see a tear-down anytime soon or is it a lost battle?

Responder a esta pergunta Também tenho esse problema

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This question was migrated from http://www.ifixit.com/Answers.

10 de out de 2017 por iRobot

Same for me, I hate when they do that. I will stick to the QC25 with the easy AAA.

2 de jun de 2018 por Julien Taming

This question was migrated from https://meta.ifixit.com/Answers.

2 de jun de 2018 por iRobot

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This question was migrated from http://www.ifixit.com/Answers. — iRobot
Same for me, I hate when they do that. I will stick to the QC25 with the easy AAA. — Julien Taming
This question was migrated from https://meta.ifixit.com/Answers. — iRobot

Junrei @junrei Rep: 468 3 1 1 · Answer 1 · 2018-11-02T10:19:51-07:00

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Junrei @junrei

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There is now a partial teardown guide that includes how to access the battery. Bose QuietComfort 35 PARTIAL Teardown

I’m not sure what type of battery to replace it with though.

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Hi Junrei,

any luck sourcing for the battery?

10 de jan de 2019 por Gunaprakash Venugopal

I did source a battery. Just replace it with one of the same voltage and capacity, and make sure it has a temperature wire (it will be a 3-wire battery instead of 2-wire). You can use a 10K resistor to ground (I think) to do without a temp sensor on the battery but I do not recommend that. Double check that.

13 de fev de 2019 por Junrei

Hi Junrei,

Mind if I ask you where you sourced the battery?

15 de abr de 2019 por Rex Catipay

@Rex Catipay Please see the teardown.

13 de mai de 2019 por Junrei

@junrei Great job!!!!

17 de mar de 2020 por Mikey

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Blake Klein @blakeklein Rep: 70,5 mil 86 31 245 · Answer 2 · 2017-10-10T16:54:29-07:00

Blake Klein @blakeklein

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Hi Georgey,

The Bose QC35 are not user serviceable and will require some electrical knowledge to take it apart to replace something such as the battery.

I am unsure if iFixit will do a teardown but if these headphones are a pair that you are dead set on feel free to do a teardown and put it up to help others out who might be in the same spot you are.

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Isn't the entire point of DIY repair to figure things like this out and share the knowledge with the community?

It will be a single lithium cell at 3.7v nominal like every other wireless headphone on the market.

It will require soldering the positive lead (red) and negative (black).

The whole reason I love this community is for people's fighting "we can figure this out! we can do this!" spirit.

This comment seems to aim to smother that spirit.

17 de mar de 2020 por Mikey

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