Charge the MacBook Air battery - Apple Support
Identify your AirPods - Apple Support (EG)
Here's why your AirPods battery life is getting worse, and what you can do about it
About Optimized Battery Charging on your iPhone - Apple Support
About recalibration of battery health reporting in iOS 14.5 - Apple Support
How to Check AirPods Battery Life - MacRumors
How to Check AirPods Battery Life - MacRumors
How to check your AirPods battery status - SoundGuys
How to check the battery on Apple AirPods
Charge your AirPods and find out about battery life
Charge your AirPods and learn about battery life
If your AirPods won't charge - Apple Support
11 Ways to Check the Battery Life of Your AirPods, AirPods Pro, or AirPods Max « Gadget Hacks