Do AirPods cases lose battery when not in use?
AirPods lose battery when you are not wearing them because they are “listening” for a connection. Their Bluetooth radios are always on when they are outside the case, which requires battery power. Well they’re using lithium batteries which will discharge when you’re not using it..
How many years will AirPods last?
AirPods contain rechargeable lithium-ion batteries that at best are expected to have a life span of about two years.
Do AirPods cases overcharge?
So, can my Apple AirPods and the case be overcharged? Unlike older battery tech, the Lithium-ion batteries used in most modern tech can’t actually accept overcharge. That means tech using them needs to include overcharge protection circuits, which completely stop the current flowing to the battery once full.