Charger and charging method
First Claim
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1. A charger comprising:
- a power supply unit that supplies electric power to a secondary battery; and
a settlement unit that settles usage fees of a charger after supplying electric power to said secondary battery has started but before termination of charging,wherein said power supply unit supplies electric power at a first electric power supply speed during a time interval from the start of the supplying of electric power to said secondary battery until said settlement has been carried out by said settlement unit, and supplies electric power at a second electric power supply speed that is faster than said first electric power supply speed after said settlement has been carried out by said settlement unit.
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Abstract
According to the present invention, in a charger for charging a secondary battery, in order to solve the problem that when usage fees are settled before the start of charging to prevent the nonpayment of usage fees, the possibility arises that the usage fees will be refunded, the usage fees of the charger are settled before the charging is completed. The charger (200) has: a power supply unit (210) that supplies electric power to a secondary battery; and a settlement unit (220) that settles the usage fees for using the charger after the supply of electric power to the secondary battery has started but before the termination of charging.
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Citations
18 Claims
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1. A charger comprising:
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a power supply unit that supplies electric power to a secondary battery; and a settlement unit that settles usage fees of a charger after supplying electric power to said secondary battery has started but before termination of charging, wherein said power supply unit supplies electric power at a first electric power supply speed during a time interval from the start of the supplying of electric power to said secondary battery until said settlement has been carried out by said settlement unit, and supplies electric power at a second electric power supply speed that is faster than said first electric power supply speed after said settlement has been carried out by said settlement unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A charging method realized by a charger that carries out charging of a secondary battery, comprising:
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a power supply step of supplying electric power to said secondary battery; and a settlement step of settling usage fees of said charger after the supplying of electric power to said secondary battery has started but before charging has terminated, wherein in said power supply step, electric power is supplied at a first power supply speed in a time interval from the start of supplying electric power to said secondary battery until said settlement is carried out and electric power is supplied at a second power supply speed that is faster than said first power supply speed after said settlement has been carried out. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification