If the Bluetooth headset is not used for a long time and the built-in lithium battery is used, the lithium battery is usually damaged due to excessive power loss. Just replace the battery.
1, lithium battery, usually used at least once a month. Usually use with charge, at least once a month full and put. This is better for the life of lithium batteries.
2, if the lithium battery is not used for a long time, such as half a year or several years, after the battery is completely exhausted, it is possible that the battery cell will be completely damaged. You need to replace the cell or battery.
3, if the headset is a replaceable battery design, directly replace the new battery. If not, try freezing. Indeed, there are many netizens feedback, this method sometimes works: after the headphones are sealed with a plastic bag, to ensure that they do not enter the water, put them in the refrigerator for a few hours, and after taking them out, many batteries will return to life.
Bluetooth headset for a long time no charge does not charge into the solution
Turn on the heat gun and point it at the lower cover of the Bluetooth headset for a moment.
Gently remove the lower cover, then use a knife to pry the cover off the side of the headset.
Remove the battery from the inside of the headset and put in a new battery.
After the battery is installed, install the side headphone cover, and finally put the bottom cover back in place
one
The charger is broken or the socket is in poor contact. It may be that the use of the charger for a long time makes the charger socket loose and the poor contact results in the inability to charge the Bluetooth headset normally. I suggest you try a new charger.
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two
The charging port of the Bluetooth headset is loose, resulting in poor contact. Check the charging port of the Bluetooth headset, whether there is loose, poor contact, resulting in normal charging.
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three
The battery of the Bluetooth headset is damaged, so it cannot be charged. If the charger is good and the interface is not loose, it is necessary to consider that the battery is damaged.
Do not use before leaving some electricity in it, otherwise the battery is exhausted for a long time and it will be scrapped