Ensuring battery reserve for mobile communication

A computer program product for ensuring a battery reserve, the computer program product comprising:

• one or more computer readable storage media;
• and
• program instructions stored on the one or more computer readable storage media, the program instructions comprising:
• program instructions to determine a usage history of functions for a mobile device, wherein the determined usage history of the functions is based upon historical analytics for a user;
• program instructions to monitor a battery reserve in the mobile device;
• program instructions to determine whether a threshold battery reserve for a battery in the mobile device has been met based upon the monitored battery reserve;
• and
• responsive to determining that a threshold battery reserve for the battery in the mobile device has been met:
• program instructions to determine a function to disable based on the determined usage history of the function for the mobile device and a current usage of the mobile device, wherein the current usage is based on a usage location, and
• program instructions to implement a power save mode for the mobile device to reduce battery consumption by the mobile device, wherein the power save mode includes disabling the function and utilizing at least one of a battery partition and a second battery.

A computer system for ensuring a battery reserve, the computer system comprising:

• one or more computer processors;
• one or more computer readable storage media;
• and
• program instructions stored on the one or more computer readable storage media for execution by at least one of the one or more computer processors, the program instructions comprising:
• program instructions to determine a usage history of functions for a mobile device, wherein the determined usage history of the functions is based upon historical analytics for a user;
• program instructions to monitor a battery reserve in the mobile device;
• program instructions to determine whether a threshold battery reserve for a battery in the mobile device has been met based upon the monitored battery reserve;
• and
• responsive to determining that a threshold battery reserve for the battery in the mobile device has been met:
• program instructions to determine a function to disable based on the determined usage history of the function for the mobile device and a current usage of the mobile device, wherein the current usage is based on a usage location, and
• program instructions to implement a power save mode for the mobile device to reduce battery consumption by the mobile device, wherein the power save mode includes disabling the function and utilizing at least one of a battery partition and a second battery.