While an autopsy, undertaken the same day Presley died, was still in progress, Memphis medical examiner Dr. Jerry Francisco announced that the immediate cause of death was cardiac arrest. Asked if drugs were involved, he declared that drugs played no role in Presley's death.
Power Reserve notification (left), Charging the Apple Watch (middle and right). As for charge times, Apple says it takes about 1.5 hours to reach 80% and up to 2.5 hours for a full 100% charge. Real-world Watch battery performance.
Charge your Apple Watch. If your battery power is low, you'll see on the screen of your Apple Watch. To charge your Apple Watch: 1  Plug the Apple Magnetic Charging Cable into its USB Power Adapter. 2  Plug the adapter into a power outlet.3  You can also plug the charging cable into a USB port.f your battery power is low, you'll see on the screen of your Apple Watch. To charge your Apple Watch: 1  Plug the Apple Magnetic Charging Cable into its USB Power Adapter.