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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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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:

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

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

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

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

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通过使用多合一工具包维修可以节省成本。

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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?

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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.

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Hi Junrei,

Mind if I ask you where you sourced the battery?

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@Rex Catipay Please see the teardown.

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@junrei Great job!!!!

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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.

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Where can I buy qc35 (series I) battery from? Any suggestions?

I do see some batteries at ebay, but not sure if they are right one.

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See the teardown.

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There is now a video on YouTube about this but where to get the replacement battery is still my problem. Let me know pls if you found where to, thnx.

https://youtu.be/jB-6o_SN4ng

Ray

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