A POWER MANAGEMENT SYSTEM FOR ELECTRONIC DEVICES

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for providing a user with feedback regarding power consumption in a battery-operated electronic device. In one aspect, a method is performed by one or more data processing apparatus. The method includes receiving, at the data processing apparatus, historical records of power consumption by a collection of battery-operated electronic devices that are operated by different users, aggregating and analyzing, by the data processing apparatus, the historical records to generate representative characterizations of the power consumption on different classes of the battery-operated electronic devices, and outputting, from the data processing apparatus, the representative characterizations of the power consumption by different applications that have executed on the different classes. Each of the battery-operated electronic devices belongs to a class.