1. It is not often that the charging time is too long, and now the battery of the Bluetooth headset is a built-in lithium battery.
2. The general Bluetooth headset is fully charged, the lithium battery will stop charging, and it will not continue to absorb electricity.
3. When the Bluetooth headset is fully charged, unplug it, try not to overcharge it, and pay attention to protecting the battery.
4. The fully charged Bluetooth ear will always show blue or green indicator light, and it will be fully charged for about 2-3 hours.