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US Patent 7786698 Charging a secondary battery

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
77866981
Patent Inventor Names
Matthew Felder1
Russell A. Schultz1
Date of Patent
August 31, 2010
1
Patent Application Number
123606281
Date Filed
January 27, 2009
1
Patent Citations Received
‌
US Patent 11777330 Common charge controller for electronic devices with multiple batteries
Patent Primary Examiner
‌
Bao Q. Vu
1
Patent abstract

A method of charging a battery includes applying a charging current from a semiconductor device to the battery during a first battery charging time period. The method also includes measuring a charging voltage level at the battery during the first battery charging time period. During a non-charging voltage measurement time interval, the method includes temporarily stopping application of the charging current from the semiconductor device to the battery and measuring a non-charging voltage level at the battery while the charging current is not being applied to the battery.

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