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A condition managing system for a storage battery which is used as a drive power source for a movable body such as an electric car and which is formed by a number of sealed nickel/hydrogen storage batteries, comprises a battery pack 1, a detection unit 2 for detecting the condition of a battery pack

A condition managing system for a storage battery which is used as a drive power source for a movable body such as an electric car and which is formed by a number of sealed nickel/hydrogen storage batteries, comprises a battery pack 1, a detection unit 2 for detecting the condition of a battery pack, a battery condition judging unit 3, a movable body signal control part 4, a battery charger 5 for charging up the battery pack 1 under the control of a signal which is supplied from the battery condition judging unit 3, and a display part 6 for displaying the condition of the battery.

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A method of charging up a storage battery for a system which comprises: a battery pack which is formed by combining a number of storage batteries, said battery pack being used as a drive power source for a movable body; a ventilation part for supplying cool air toward the battery pack; a detection u

A method of charging up a storage battery for a system which comprises: a battery pack which is formed by combining a number of storage batteries, said battery pack being used as a drive power source for a movable body; a ventilation part for supplying cool air toward the battery pack; a detection unit which is disposed in the vicinity of said battery pack to detect condition information about a voltage, a temperature and a pressure of a storage battery and an ambient temperature, said detection unit having an analog-digital conversion function of converting an obtained detection value from an analog value into a digital value and a signal sending function of successively sending said digital value in a serial method; a movable body signal control part for controlling a discharging current of a battery, a charging current of the battery, a regenerative current to the battery which is generated during a braking operation of the movable body, and various types of information regarding the movable body; a battery condition judging unit including a computation part for executing computations based on information from said detection unit and the movable body signal control part, a charging control signal part for supplying a charging control signal to a battery charger whose input source is an alternating current power source, a remaining capacity judging signal part for supplying a capacity judging signal to a display part, a lifetime judging signal part for supplying a lifetime judging signal to the display part, and a movable body control signal part for supplying a movable body control signal to the movable body signal control part; the battery charger for charging said battery pack, under the control of the charging control signal from said battery condition judging unit; and the display part for displaying a remaining capacity of the battery and a result of lifetime judgment, under the control of the capacity judging signal and the lifetime judging signal from the battery condition judging unit, the method being characterized in that: charging of the battery pack which is performed by the battery charger which is controlled by the charging control signal from said battery condition judging unit consists of two parts, a first charging period and a second charging period, and charging is performed using charging power until a result of a first remaining capacity judgment reaches about 90% to 100% of an initial capacity during the first charging period, the second charging period is thereafter started during which charging is continued using a very small charging current until a result of a second remaining capacity judgment reaches about 100% to 110% of the initial capacity, and charging is then stopped. A system for judging a remaining capacity of a storage battery for use within a system which comprises: a battery pack which is formed by combining a number of storage batteries, the battery pack being used as a drive power source for a movable body; a ventilation part for supplying cool air toward the battery pack; a detection unit which is disposed in the vicinity of said battery pack to detect condition information regarding a battery such as a voltage, a temperature and a pressure of a storage battery and an ambient temperature, the detection unit having an analog-digital conversion function of converting an obtained detection value from an analog value into a digital value and a signal sending function of successively sending said digital value in a serial method; a movable body signal control part for controlling a discharging current of a battery, a charging current of the battery, a regenerative current to the battery which is generated during a braking operation of the movable body, and various types of information regarding the movable body; a battery condition judging unit including a computation part for executing computations based on information from said detection unit and the movable body signal control part, a charging control signal part for supplying a charging control signal to a battery charger whose input source is an alternating current power source, a remaining capacity judging signal part for supplying a capacity judging signal to a display part, a lifetime judging signal part for supplying a lifetime judging signal to the display part, and a movable body control signal part for supplying a movable body control signal to the movable body signal control part; the battery charger for charging said battery pack, under the control of the charging control signal from said battery condition judging unit; and the display part for displaying a remaining capacity of the battery and a result of lifetime judgment, under the control of the capacity judging signal and the lifetime judging signal from the battery condition judging unit, the system for judging a remaining capacity of a storage battery being characterized in that: said battery condition judging unit judges a remaining capacity by combining a result of a first remaining capacity judgment which is based on a discharged electricity quantity and a result of a second remaining capacity judgment which is based on a discharging voltage, and a remaining capacity which is yielded by the first remaining capacity judgment is adopted while the remaining capacity remains from around 100% to around 20% of an initial capacity but a remaining capacity which is yielded by a second remaining capacity judgment is adopted when the remaining capacity according to the first remaining capacity judgment varies from around 20% to around 0% after dropped to around 20% of the initial capacity.