Should You Let Your Apple Watch Die Before Charging. You may also find the optional Nightstand Bedside mode useful. Rather than keeping your battery at full charge your Apple Watch will learn from your charging habits and hold the charge at 80 and will only jump to 100 right before you wake up.
Just charge as fits your usagelifestyle. Charging the device in high ambient temperatures can damage it further. If your watch requires charging a red lightning bolt appears on the screen.
Its especially important to avoid exposing your device to ambient temperatures higher than 35 C 95 F which can permanently damage battery capacity.
To charge your Apple Watch. Optimized Battery Charging is on by default when you set up your Apple Watch or after updating to watchOS 7 or later. Charge your Apple lithium-ion battery whenever you want. When the feature was introduced with iOS 13 we gave you a run down on what it is how it works and how to turn it off and on.
