How to Fix the No-Charge Issue on the Bose QuietComfort (QC) 35 (1st and 2nd Generations) by Replacing a Dead or Failing Battery (DIY Repair Guide)
Do your Bose QuietComfort (QC) 35 wireless headphones refuse to power on, require frequent recharging, shut down unexpectedly even when the battery hasn’t dropped to 1%, deliver significantly shorter playback time, or fail to charge when connected to a power source? These are all common signs of a dead or failing battery. Replacing the battery can restore reliable performance and bring your headphones back to their original battery life.