A method and system of managing power usage of devices including selectively executing a program application on a plurality of battery powered devices. Battery usage data is generated for a battery in one or more of the devices during execution of the work application. The battery usage data includes the run-time of the battery for the work application being executed. The data is aggregated and stored for the plurality of devices in memory. An application specific battery profile is generated using the stored battery usage data. The application specific battery profile is associated with the work application being run by the client devices.