Fixing my Bose QC15 headphones

I hadn’t used my noise-canceling headphones in a while and found its battery was dead. When I went to replace the battery, I also found corrosion. It took me around thirty minutes to get that stubborn little green light to come back on, but they’re now working perfectly once again.

Here’s what I did (several times) in case it helps someone else:

  • Dipped Q-tips in isopropyl alcohol and rubbed the positive and negative contacts inside the battery compartment
  • Dipped Q-tips in water and rubbed the contacts again
  • Used a dry Q-tip and dried the contacts as much as I could
  • Sprayed air into the battery compartment with a power duster spray
  • I dug a toothpick into the middle of the positive contact and blindly scratched away
  • Used another toothpick to scratch away at the negative contact
  • Sprayed it with some more air

Don’t give up too soon!

7 thoughts on “Fixing my Bose QC15 headphones

  1. I had the very same problem. Solution? A small piece of tin foil. I wrapped it around the positive pole and voila!

  2. The wire can also break. The corrosion from the batter can eat away at the power wire which connects from the battery + terminal to the headphones. Mine broke the second I removed the spring terminal.

  3. Tried everything described here –and also toggling the Hi/Lo switch on the cord that plugs in to the phones… and nada. Possibly the wire burned out. Be careful with the tinfoil trick. I barely was able to get the battery out after that.

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