Please first plug in the USB-C port of the phone or charging cable to charge, wait 15 seconds to see whether the indicator light on, charge for more than 5 minutes, if the indicator blinking or steady on, it means that the charging is normal.
Check the ambient temperature during charging. According to the chemical characteristics of the lithium battery, to ensure the safe use of the headset battery, the headset cannot be charged when the temperature is lower than 0 ° C or higher than 47 ° C. You are advised to charge the headset at a temperature of 3 ° C to 45 ° C.
Please clean the earphone USB connector. If the earphone USB-C connector is dirty, the charging function of the earphone will be affected.
You may have bought a Huawei experience headset, so you can only charge 70
There is no way to do this, because the demo machine it is always powered on, so it is already limited. The charging bin can only charge 70-75% of the way.