US PATENT SUBCLASS 324 / 430
.~.~ To determine internal battery impedance

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

425  DF  ELECTROLYTE PROPERTIES {3}
426  DF  .~ Using a battery testing device {10}
430.~.~ To determine internal battery impedance

DEFINITION

Classification: 324/430

To determine internal battery impedance:

(under subclass 426) Subject matter with circuitry connected to the battery for the purpose of measuring internal battery impedance.