It is best to keep the AirPods in the case when you are not using them.
They also do not overcharge.
When your AirPods are out of the case they use battery even if you are not using them.
To keep your AirPods charged, put them in the case when you’re not using them.
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.
How long will AirPods last?
around five hours
Why are my AirPods dying so quickly?
The lithium-ion batteries that power AirPods are everywhere. They charge faster, last longer, and pack more power into a small space than other types of batteries do. But they die faster, too, often after just a few years, because every time you charge them, they degrade a little.
Can you stop AirPods from charging in case?
Put AirPods in Charging Case To Stop Audio and Save Battery Life. Apple Inc. So, you can’t turn AirPods off to stop them from working or to save battery life. However, Apple has built some features into the AirPods that let you deal with these situations.