Fully charged to automatically power off. Airpods can be charged automatically if it is not powered. Fully charged in 20 minutes, and then it will be powered off. Never waste the electricity of the charging case.With 450mAh large capacity Lithium batteries can charge your Airpods over 5 times. Notice: Can only provide power charging for Airpods with not Bluetooth one-tap setup with your Airpods.NO Connection Button.