True wireless earbuds tend to have long-term battery problems because the constant partial depletion and over-charging that occurs in the cases can wear out the battery over time. Apple has tried to combat this issue by including a battery optimization feature on the AirPods Pro, which prevents the battery from charging to 100% except for when you tend to use them for longer listening periods. The AirPods technology learns your usage patterns to plan this out, but you can disable the feature if you don’t want it.