BATTERY CHARGER AND METHOD
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United States of America Patent
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Issued Date -
Nov 20, 2008
app pub date -
Aug 31, 2007
filing date -
Sep 4, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
[Problem to be Solved] To efficiently charge a battery via a charger at a higher possible charging current that is within the range where no trouble due to the temperature occurs in the charger. [Solution] There is provided a charger 10 that can charge a battery 3 of a vehicle 1 with a charging current A from a power source 8, and that is not mounted on board. In charging the battery 3, charging modes M1 to M4 are switched sequentially at a plurality of predetermined timings H1 to H5 as a charging time H elapses. Generally over the entire charging time H, values of the charging current A for the respective charging modes M1 to M4 are reduced as the charging time H elapses. Charging in a charging mode M1 is stopped when the temperature T of the charger 10 is increased to reach a predetermined temperature T1, so that charging is performed at a first lower charging current A1' that is lower than the first charging current A1 for the preceding first charging mode M1 until a start predetermined timing H2 for a subsequent charging mode M2 that was to follow the preceding charging mode M1 is reached.
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