Patent ID: 9015514
Filing Date: 2015-04-21
Classification: G06F,Y02D

Abstract:
1. An information handling system, comprising: one or more battery cells configured to be coupled to receive current from an external power source for recharging the battery cells; a system load comprising power consuming circuitry coupled to selectably receive current from the external power source, the battery cells, or a combination thereof, the system load including one or more processing devices; persistent memory; and persistent shutdown management circuitry including at least one of the processing devices coupled to the persistent memory; where at least one of the processing devices is configured to monitor the current charge level of the battery cells; where at least one of the processing devices is configured to execute an operating system thereon and to initiate shut down of the operating system and disconnection of at least a portion of the system load from the battery cells when the monitored battery charge level is below a predetermined minimum acceptable operating voltage threshold value; and where the persistent shutdown management circuitry is configured to: where the persistent shutdown management circuitry is further configured to store an additional persistent shut down indication for the persistent shutdown management circuitry in persistent memory and to shut down when the monitored battery charge level is below a predetermined safe shut off voltage threshold for the persistent shutdown management circuitry, the predetermined safe shut off voltage threshold for the persistent shutdown management circuitry being a lower voltage level than the predetermined minimum acceptable operating voltage threshold value; and where the persistent shutdown management circuitry is further configured to wake from the shutdown state upon sensing the presence of available power from an external power source.