Patent ID: 11868191
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 1:
2. The system of claim 1, wherein:
the one or more first backup battery units have a first reserve charge requirement;
the one or more second backup battery units have a second reserve charge requirement; and
the executable instructions are further configured to cause the controller to:
cause at least one of the one or more second backup battery units to discharge a supplemental DC electrical power to the high-priority electronic components in the datacenter to supplement the second portion of the utility power based DC electrical power supplied to the high-priority electronic components by the power supply unit in response to the at least one of the one or more second backup battery units having a charge level that exceeds the second reserve charge requirement and the at least one of the one or more second backup battery units have a charge level that does not exceed the second reserve charge requirement; and
prevent the one or more first backup battery units from discharging electrical power in response to the one or more first backup battery units having a charge level that does not exceed the first reserve charge requirement.