| 摘要 |
A battery pack comprising: a housing; at least one cell within the housing; wherein the housing has inscribed thereon a battery pack date code for identifying a date of manufacture of the battery pack; and, wherein the cell has inscribed thereon a number (e.g., a periodically changing, predetermined random number) that is associated with the battery pack date code in an external list; whereby comparing the number on the cell to the number recorded in the list for the battery pack date code of the battery pack determines whether the cell belongs to the battery pack.
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