BATTERY PACK, BATTERY CHARGER AND CHARGING METHOD
First Claim
1. A battery pack comprising:
- a secondary battery;
a switch element for controlling charging and discharging of the secondary battery;
a controller for controlling the switch element; and
a communication unit for performing communication with a battery charger,wherein, during charging,an initial charging is switched to a quick charging if a voltage of the secondary battery reaches a predetermined voltage, andthe battery charger judges the battery pack as abnormal if the voltage does not reach the predetermined voltage within a timeout period after the initial charging is started, andwherein at least one of the timeout period and the predetermined voltage is stored, andat least one of the timeout period and the predetermined voltage, which is read out, is transmitted through the communication unit to the battery charger.
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Abstract
A battery pack, a battery charger, a method for charging a battery pack are provided. The battery pack includes a secondary battery, a switch element for controlling charging and discharging the secondary battery, a controller for controlling the switch element, and a communication unit for performing with a battery charger. During charging, an initial charging is switched to a quick charging when a voltage of the secondary battery reaches a predetermined voltage, and the battery charger judges the battery pack as abnormal when the voltage does not reach the predetermined voltage within a timeout period after the initial charging is started. At least one of the timeout period and the predetermined is stored. At least one of the timeout period and the predetermined voltage to be read out is transmitted through the communication unit to the battery charger.
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Citations
15 Claims
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1. A battery pack comprising:
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a secondary battery; a switch element for controlling charging and discharging of the secondary battery; a controller for controlling the switch element; and a communication unit for performing communication with a battery charger, wherein, during charging, an initial charging is switched to a quick charging if a voltage of the secondary battery reaches a predetermined voltage, and the battery charger judges the battery pack as abnormal if the voltage does not reach the predetermined voltage within a timeout period after the initial charging is started, and wherein at least one of the timeout period and the predetermined voltage is stored, and at least one of the timeout period and the predetermined voltage, which is read out, is transmitted through the communication unit to the battery charger.
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2. A battery charger for a battery pack, comprising:
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a communication unit for performing communication with the battery pack and receiving information on a timeout period from the battery pack; and a charging controller which performs an initial charge during charging, performs a quick charging if a voltage of the battery pack reaches a predetermined voltage, and judges the battery pack as abnormal if the voltage does not reach the predetermined voltage within the timeout period after the initial charging is started. - View Dependent Claims (4, 5)
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3. A battery charger for a battery pack, the battery charger including a secondary battery, the battery charger comprising:
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a communication unit for performing communication with the battery pack and receiving information on a full charge capacity value of the secondary battery from the battery pack; and a charging controller which calculates a timeout period based on the full charge capacity value, and during charging, performs an initial charging of the battery pack, performs a quick charging if a voltage of the battery pack reaches a predetermined voltage, and judges the battery pack as abnormal if the voltage does not reach the predetermined voltage within the timeout period after the initial charging is started.
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6. A battery charger for a battery pack, comprising:
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a communication unit for performing communication with the battery pack and receiving information on a predetermined voltage from the battery pack; and a charging controller which, during charging, performs an initial charging of the battery pack and performs a quick charging if a voltage of the battery pack reaches a predetermined voltage, and judges the battery pack as abnormal if the voltage does not reach the predetermined voltage within a timeout period after the initial charging is started. - View Dependent Claims (7, 8)
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9. A method for charging a battery pack, the method comprising:
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a communication step of performing communication with the battery pack and receiving information on a timeout period from the battery pack; and a charge control step of, during charging, performing an initial charging of the battery pack and performing a quick charging if the voltage of the battery pack reaches a predetermined voltage, and judging the battery pack as abnormal if the voltage does not reach the predetermined voltage within a timeout period after the initial charging is started.
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10. A method for charging a battery pack which includes a secondary battery, the method comprising:
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a communication step of performing communication with the battery pack and receiving information on a full charge capacity value of the secondary battery from the battery pack; and a charge control step of (a) calculating a timeout period based on the full charge capacity value, and during charging, (b) performing an initial charging of the battery pack, performing a quick charging if the voltage of the battery pack reaches a predetermined voltage, and (c) judging the battery pack as abnormal if the voltage does not reach the predetermined voltage within the timeout period after the initial charging is started. - View Dependent Claims (11, 12)
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13. A method for charging a battery pack, the method comprising:
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a communication step of performing communication with the battery pack and receiving information on a predetermined voltage from the battery pack; and a charge control step of, during charging, (a) performing initial charging of the battery pack and performing quick charging if the voltage of the battery pack reaches a predetermined voltage, and (b) judging the battery pack as abnormal if the voltage does not reach the predetermined voltage within a timeout period after the initial charging is started. - View Dependent Claims (14, 15)
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Specification