Method and apparatus for determining depleted capacity of a battery
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United States of America Patent
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Jun 6, 2006
Grant Date -
Aug 7, 2003
app pub date -
Dec 6, 2001
filing date -
Dec 19, 2000
priority date (Note) -
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Abstract
In a method and apparatus for determining the depleted capacity of a CF.sub.x type battery used in an implantable medical device, average values of battery voltage and battery current drawn from the battery are measured during a measurement time, the length of which exceeds a battery voltage recovery time after a load change, and wherein the actual depleted capacity of the battery is determined by predetermined relations between combinations of the average values of voltage and current and depleted battery capacity.
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