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All-day battery life is based on 18 hours with the following use: 90 time checks, 90 notifications, 45 minutes of app use, and a 30-minute workout with music playback from Apple Watch via Bluetooth, over the course of 18 hours.
Your battery is designed to retain up to 80% of its original capacity at 500 complete charge cycles. The one-year warranty includes service coverage for a defective battery. If it is out of warranty, Apple offers a battery service for $79, plus $6.95 shipping, subject to local tax.Your battery is designed to retain up to 80% of its original capacity at 1000 complete charge cycles.The one-year warranty includes service coverage for a defective battery. If it is out of warranty, Apple offers a battery service for $99, plus $6.95 shipping, subject to local tax.our battery is designed to retain up to 80% of its original capacity at 1000 complete charge cycles. The one-year warranty (for Apple Watch and Apple Watch Sport) and two-year warranty (for Apple Watch Edition) include service coverage for a defective battery. If it is out of warranty, Apple offers a battery service.