Patent ID: 8898485

Claim:
A device comprising: a processor; a memory coupled to the processor; a power source; a user interface arranged to: display an availability of other devices having respective power sources from which power can be accessed; display a current power status of the device; and display user selectable power transfer preferences that enable a user to define power transfer preferences between the device and the other devices; at least one bi-directional power transfer connector arranged to enable the device to be connected to another device having a power source; a power bus linking the power source and the power transfer connector and arranged to enable bi-directional power transfer relative to the power source; and a power management module connected to the power bus and arranged to control the bi-directional power transfer, the power management module being configured to determine whether to provide a first level of power or a second level of power to a second device, the first level of power being sufficient to power operation of the second device, the second level of power being sufficient to power operation of the second device and charging of a battery of the second device, the determination being based at least in part on whether the battery of the second device is to be charged.