If you can charge the headset, the battery of the box is bad and cannot be charged; If the earphone battery dies, the box's battery can be recharged; It's the battery. It's dead.Change a charging cable, change the computer USB port output electricity, jack plug contact is good, try not to solve it.A single charge gives you up to 5 hours of listening or 2 hours of talking on your AirPods.With multiple charges in the charging case, you can listen for more than 24 hours or talk for up to 11 hours.If you put the AirPods in the charging case for 15 minutes, you can listen for up to three hours or talk for more than an hour.When the AirPod battery is low, you will hear one or both AirPods beep. You'll hear a beep when the battery is low, and another beep just before the AirPods are about to shut down.