Devices left in storage for extended periods should be put in Shelf Mode to preserve the battery and prevent it from depleting. A device in shelf mode maintains a functional battery level for up to a year.
This mode is particularly useful for devices stored for an extended period. The conditions for storing a device in Shelf Mode are:
The device's battery level is between 60 - 80 %.
The recommended battery state of charge (SOC) is the optimal range to guarantee battery life in shelf mode at room temperature.