Generally speaking, when the Bluetooth headset is fully charged, the charging pod of the Bluetooth headset will automatically power off, and the indicator light of the charging pod will change from the yellow that has just been charged to red or green, indicating that it has been fully charged, it will not always charge the Bluetooth headset, in addition, the Bluetooth headset generally charges for 2-3 hours, but some support fast charging, some only support slow charging. There are indicators when charging, you can control according to the indicator light, such as unplug the power supply in time after full charge. Generally, if the Bluetooth headset is not used, the normal standby time can reach 10 hours or so, and the charging during the power may lose the life of the Bluetooth headset, so try to charge it after the power is exhausted.
They won't, and they don't need to.
< br >
Battery charging is divided into two stages, the first stage is equal charge, the current is constant, the voltage gradually rises, and the voltage becomes stable after reaching the target value, entering the second stage of floating charge, the charging voltage is stable, the charging current is very small, because the battery has a parasitic discharge path inside itself, the floating charge current is basically the same size as the parasitic discharge current, so the battery will not overcharge.
< br >
Your battery will last longer if you charge it as soon as it drops slightly, rather than waiting until it's dead.