Various techniques for managing power backup for computing devices are disclosed herein. In one embodiment, a method includes receiving data representing a backup capacity of one or more backup power units and data representing a backup power profile of one or more processing units sharing the one or more backup power units. A portion of the backup capacity may then be assigned to each of the one or more processing units based at least in part on both the received data representing the backup capacity of the one or more backup power units and the received data representing the profile of the one or more processing units.
