If your Huawei Bluetooth headset charging case cannot be fully charged, the possible causes are as follows:
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Charging line fault: Check whether the charging line is properly connected and whether it is loose or damaged.
Charger failure: Check whether the charger is working properly and whether it can output the correct voltage and current.
Internal fault of the charging box: Check whether the inside of the charging box is damaged or loose, such as whether the charging port is normal and whether the battery is aging.
Lack of charging time: If your charging case has been used for a while, it may take longer to fully charge. It is recommended that you plug the charging case into the charger and keep it charged for at least 2-3 hours until the charging light turns green.
If the fault persists, contact Huawei customer service or go to a professional maintenance center.
Headset and charging box power use 5% change display, when the headset or charging box power consumption is less than or equal to 5%, will be displayed reduced by 5%. If the charging box has just reached 100% power, take it out, and the power is at a critical point, and a little power consumption will show a decrease of 5% and become 95%. This is a normal phenomenon, please feel free to use