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Charging your headphones | Bose QuietComfort 45 headphones
To charge the battery:
- Connect the small end of the USB cable into the USB-C port on the right earcup.
- Connect the other end into a 1A USB Power Source.
- When the headphones begin charging, the status light blinks white for 10 seconds
- When fully charged, the status light glows solid white
- The headphones don’t play while charging
- Allow up to 2 hours to fully charge the headphones
Hearing the battery level
Each time you power on the headphones, a voice prompt announces the battery level. When the headphone battery is low, you'll hear “Battery low, please charge now.”Plugging in overnight will not overcharge the battery
Lithium batteries have a built-in auto-off feature when a full charge is reached to prevent the battery from being overcharged. Even while still plugged in, the battery level will have to drop below a certain point to trigger the charging again.