How long will AirPods last?
around five hours
Do AirPods drain battery when not in use?
AirPods lose battery when you are not wearing them because they are “listening” for a connection. The assumption Apple has built-in to the AirPods is that if you take them out and don’t put them back in the case, you are going to be putting them back in soon.
How can I make my AirPods battery last longer?
Keep Them Cased: The AirPods case itself stores 24 hours of additional charge, so it should keep you going if you use your AirPods twice daily on a long commute, for instance. Just make sure you keep your AirPods in their case when they’re not in use, and remember to connect the case to a power outlet every few days.