To do this, open the Apple Watch app on iPhone, go to My Watch > Workout, and turn on Power Saving Mode. During running and walking workouts, turn on Power Saving Mode to disable the heart rate sensor.There are a few ways you can preserve battery life on your Apple Watch: After it’s removed from storage, it may require 20 minutes of charging with the original adapter before you can use it. If you plan to store your device for longer than six months, charge it to 50% every six months.ĭepending on how long you store your device, it may be in a low-battery state when you remove it from long-term storage.Place your device in a cool, moisture-free environment that’s less than 90° F (32° C).Power down the device to avoid additional battery use.Conversely, if you store it fully charged for an extended period of time, the battery may lose some capacity, leading to shorter battery life. If you store a device when its battery is fully discharged, the battery could fall into a deep discharge state, which renders it incapable of holding a charge. Do not fully charge or fully discharge your device’s battery - charge it to around 50%.If you want to store your device long term, two key factors will affect the overall health of your battery: the environmental temperature and the percentage of charge on the battery when it’s powered down for storage.
