System and method to estimate duration of battery (dis)charging of an electronic device and provide smart charging alerts based on device usage pattern

A portable electronic (PE) device, comprising:

• a power source;
• at least one processor that is powered by the power source;
• one or more applications selectively executed by the at least one processor;
• a user interface device that is communicatively coupled to the at least one processor;
• a power utility that executes on the at least one processor and configures the PE device to:
• identify a future interval of usage of the PE device based on a usage pattern associated with at least one of a user profile and usage of the PE device;
• estimate, based on the usage pattern, an amount of charge that is necessary for the power source to power the use of the PE device through the future interval;
• and
• in response to determining that the amount of charge required for use of the PE device through the future interval is greater than an amount of charge currently available from the power source, produce a user alert indicating that the PE device will require charging in order to provide the amount of charge required to power the PE device through the future interval.