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ヘッドホンの充電 | Bose QuietComfort 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 USB-A power source such as a computer or wall charger. The headphones begin charging, and the status light blinks white for 10 seconds. When the headphones are fully charged, the status light glows solid white.
NOTE: The headphones don’t play and aren’t available in the Bose app while charging.
Charging time
Allow up to 2.5 hours to fully charge the headphones. A full charge powers the headphones for up to 24 hours.
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 hear “Battery low.” To visually check the battery, see the status light located on the right earcup一晩中充電してもバッテリーが過充電になることはありません。
リチウムバッテリーには、満充電時に過充電を防ぐ自動オフ機能が備わっています。ケーブルが接続されたままでも、バッテリー残量が一定値以下に下がらない限り、充電は再開されません。
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