one
This situation is most likely the Bluetooth headset battery has been damaged.
two
It is recommended to get the after-sales network of Bluetooth headphones to let professionals test, repair or replace the battery.
three
Generally, the Bluetooth headset can be fully charged for 2-3 hours, and the blue or green indicator light will be bright when fully charged.
four
If the Bluetooth headset is not used for a long time, it is also necessary to periodically charge the battery to maintain a certain amount of power to avoid battery damage.