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crwdns2944351:0crwdnd2944351:0Bose QuietComfort 35 Battery Replacementcrwdnd2944351:0crwdne2944351:0

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crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Dominik Schnabelrauch

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Introduction
Use this guide to replace a worn out or dead battery in your Bose Quiet Comfort 35.
If your battery is swollen, [[What to do with a swollen battery|take appropriate precautions|new_window=true]]. 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 and reattach components when reassembling the device.