Patent ID: 7675270

Claim:
An information handling system comprising: a housing; plural processing components disposed in the housing and operable to process information; a battery disposed in the housing and operable to power the processing components; a battery management unit disposed in the battery an operable to manage battery operations, the battery management unit having memory with plural addresses, each address storing a battery parameter; a management bus interfacing the battery management unit with the processing components; and a power manager running on a processing component, the power manager operable to retrieve predetermined information from the battery management unit with a first command, to retrieve the predetermined information from the battery management unit with a second command and to restrict an operation of the battery unless the predetermined information from the first command matches the predetermined information from the second command; wherein the first command comprises a first address, the battery management unit further operable to reply to the first command with a value stored in the first address and by storing the first address at a second address.