1, if the newly bought Bluetooth headset can not be charged, then it should be a battery failure, or a charger failure, directly return or exchange it.
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2, if it has not been used for a long time, it may be that the lithium battery of the Bluetooth headset is dormant.
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3, before charging, open the charging port, first check whether there are stains, clean the stains of the charging interface;
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4, and then plug in the charger, patiently charge, dormant lithium battery, normal charge 3-5 times, can be fully activated;
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5, if charged for a long time or not charged into the electricity, you can change a charger to try to see if the charger is broken;
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6, if there is no problem with the charger, then it is likely that the battery is broken, and it needs to be repaired or replaced with a new Bluetooth headset.