Battery charger, and method of judging charging condition
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United States of America Patent
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Apr 13, 2010
Grant Date -
May 12, 2005
app pub date -
Nov 5, 2004
filing date -
Nov 7, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A battery charger and a method of judging a charging condition of a secondary battery capable of judging precisely a charging condition of the secondary battery are provided. Charging conditions of the secondary battery are classified to four charging conditions depending on change of the voltage value of the secondary battery during charging operation, and one of these four charging conditions is displayed on the secondary battery by detecting the voltage value of the secondary battery at predetermined intervals.
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