BATTERY PACK HAVING A SECONDARY BATTERY AND A CHARGING SYSTEM USING THE BATTERY PACK
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Abstract
A battery pack including at least one secondary battery and supplying power to predetermined equipment is disclosed. In the battery pack, charging current to the secondary battery supplied from an external charging device is cut oft to suspend charging the secondary battery until receiving a predetermined instruction from the external charging device.
The battery pack may comprise a first communication circuit unit for communicating with the external charging device; a first switching circuit unit for cutting off the charging current from the external charging device to the secondary battery; and a control circuit unit for controlling the first switching circuit unit based on information received by the first communication circuit unit. The control circuit unit instructs the first switching circuit unit to cut off the charging current from the external charging device to the secondary battery and suspend charging the secondary battery until receiving the predetermined instruction from the external charging device via the first communication circuit unit.
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Citations
31 Claims
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1-10. -10. (canceled)
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11. A charging system comprising:
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a battery pack including at least one secondary battery; and a charging device for charging the battery pack;
wherein the charging device communicates with the battery pack in a predetermined manner when receiving a DC power supply for charging the secondary battery, andwhen the charging device cannot communicate with the battery pack, the charging device suspends charging the secondary battery. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for charging a battery pack having at least one secondary battery supplying power to predetermined equipment, said method comprising the step of:
cutting off charging current to the secondary battery supplied from an external charging device to suspend charging the secondary battery until receiving a predetermined instruction from the external charging device. - View Dependent Claims (28)
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29. A charging method in a charging system comprising a battery pack including at least one secondary battery, and a charging device for charging the battery pack, said method comprising the steps of:
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communicating by the charging device, with the battery pack in a predetermined manner when the charging device receives a DC power supply for charging the secondary battery; and suspending by the charging device, charging the secondary battery when the charging device cannot communicate with the battery pack. - View Dependent Claims (30, 31)
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Specification