1. The flash battery is extremely low, you can wait half to see if it still flashes red, if it still flashes, it indicates that the charging bin has a fault, try to take out the headset, and then put it in again to charge, or check whether the data cable and interface are not well connected, the charger, the battery is faulty, you can detect or replace it, if you do not put the headset, the battery bin still flashes red when charging, It's a broken battery in the battery compartment.
2. Bluetooth charging compartment to check the charging situation: each Bluetooth headset has a flash, under normal circumstances, when the power is sufficient, flash blue; It flashes red when it is almost out of power, reports the alarm every ten seconds and makes a dripping sound. The fully charged Bluetooth headset can talk continuously for 7 or 8 hours and stand by for 9 or 10 days. When the Bluetooth headset is fully charged, it will show a red light and stay on. Some Bluetooth headsets display a green light when fully charged.
When charging, the red light indicates that the charging is faulty. From the point of view of occasional startup, the battery may be faulty and there is a possibility of virtual electricity.
Virtual electricity refers to the battery has always been in a semi-active state of semi-charging state, a simple understanding of the battery display power display is very high, the actual is relatively low, not the real power of the battery, a full charge, a use of no power.
It should be the charger or the charging battery of the headset is faulty, which is always the performance of insufficient power.