1, Bluetooth headphones do not need to wait until the battery is completely out of charge, because most Bluetooth headphones use lithium-ion batteries, the characteristics of this type of battery can be used with the charge, there is no need to wait for the battery to be charged.
2, \"lithium battery\
It can be recharged.
one
Take beatsstudiobuds for example, tower is a Bluetooth headset, if the charging bay is 0 then the Bluetooth headset battery is exhausted.
two
Need to use a special charger to connect the beatsstudiobuds Bluetooth earphones to charge for half an hour, half an hour later you can charge the charging bin. That's it.