Abstract: A system includes: connectors electrically connected to storage battery packs respectively; at least one of a discharger that discharges electric power of the storage battery packs through the connectors and a charger that charges the storage battery packs through the connectors; an information holder that holds identification information of the connectors; a receiver that receives information of the storage battery packs and the identification information of the connectors connected to the storage battery packs, which the storage battery packs receive from the information holder, respectively from the storage battery packs through wireless communication; and a storage that stores the received information of the storage battery packs and the received identification information of the connectors connected to the storage battery packs.

Abstract: A server device includes: a storage unit that stores points that a user of the battery pack holds, the points being usable as fees for at least one of usage of the battery pack and enjoyment of a service; and a control unit that changes the points, based on whether or not a usage state satisfies a usage condition, the usage condition including at least one of a condition for state management of the battery pack and a condition for usage promotion of the battery pack.

Abstract: A method for controlling an information terminal includes: (a) transmitting a signal for unlocking an electric storage device locked in an unusable state to the electric storage device at at least one of a timing after a user's instruction to install a program, in an information terminal, for transmitting history information of a state of the electric storage device to a server device is accepted and a timing after a user's instruction to activate the program in the information terminal is accepted.

Abstract: A server apparatus obtains, via an information terminal wirelessly connected to an electrical-power storage device, a value indicating a state of the electrical-power storage device at an end of use of electric equipment having the electrical-power storage device. The server apparatus further obtains, via the information terminal wirelessly connected with the electrical-power storage device, a value indicating the state of the electrical-power storage device at a start of the use of the electric equipment. The server apparatus then detects an abnormality in the electrical-power storage device by using the value indicating the state of the electrical-power storage device at the end of the use and the value indicating the state of the electrical-power storage device at the start of the use.

Abstract: A method for controlling an information terminal according to one aspect of the present disclosure includes: when a user of the information terminal uses the electric mobile body, acquiring information indicative of a state of an electric storage device mounted in an electric mobile body from the electric storage device via a first communicator that is a communicator of the information terminal and that performs near field communication with the electric storage device; and transmitting the information indicative of the state of the electric storage device to a server device via a second communicator that is a communicator of the information terminal and that communicates with the server device.

Abstract: A battery pack includes a battery, a suspension unit that establishes or breaks an electrical connection between the battery and an external device, and a control unit that controls the suspension unit to break the electrical connection between the battery and the external device when a usage state of the battery pack does not satisfy a usage condition.

Abstract: An electrical-power storage device includes: a storage battery; a movement detector that detects movement of the electrical-power storage device including the storage battery; a reporter that reports that the electrical-power storage device has an abnormality to outside; and a controller that causes the reporter to report that the electrical-power storage device has an abnormality, when the movement detector detects movement of the electrical-power storage device, and the storage battery is not executing discharging.

Abstract: A storage battery pack includes: a secondary battery; and a circuit that includes a power consumer which consumes power of the secondary battery, and that causes the power consumer to consume a remaining power of the secondary battery until a voltage of the secondary battery reaches a voltage lower than a discharge cutoff voltage.

Abstract: A storage battery pack includes: a secondary battery; a connector that is detachably connected to electrical devices that operate with power of the secondary battery; a storage that stores different profile information for each of the electrical devices, the profile information including device identification information identifying the electrical devices and item of state information indicating state of the electrical device; a first communicator that receives, from an electrical device connected to the connector, the device identification information and value of the item of state information of the electrical device; a specifier that specifies the profile information corresponding to the electrical device connected to the connection device by using the device identification information of the electrical device connected to the connector; and a second communicator that transmits, to an external information device, the profile information specified by the specifying device and the value of the item of state

Abstract: A power apparatus includes: a storage battery; a first communicator that communicates with external communication equipment through a short-range wireless communication; a power supply circuit that supply power of the storage battery to the electrical equipment; and a control circuitry that causes, when the first communicator receives a request signal for requesting at least one of first information regarding whether or not a power supply operation to supply the power of the storage battery to the electrical equipment through the power supply circuit is normal and second information regarding whether or not an operation of the electrical equipment using power supplied from the storage battery is normal from the external communication equipment, the first communicator to transmit response information including at least one of the first information and the second information to a transmission source of the request signal and to transmit the request signal to another power storage apparatus.

Abstract: A control method of an information terminal includes acquiring, by a server device via a network, information relating to a device which leases battery packs and exists in an area set by a user, and displaying the acquired information relating to the device on a display screen provided with the information terminal.

Abstract: A control method for a battery storage apparatus including a battery pack includes (a) receiving an identifier for identification of an external battery pack via a near field communicator provided in the battery storage apparatus when the external battery pack is present within a communication range of the near field communicator and (b) outputting a piece of association data, in which the identifier and a piece of apparatus information on the battery storage apparatus are associated with each other, to a server apparatus via a communicator.

Abstract: A storage battery housing device includes: a casing that includes a shelf on which a storage battery pack is placed; a connection unit that is provided at the rear of the shelf and has the storage battery pack detachably and electrically connected thereto; a power reception plug that is connected to an external power source and receives power from the external power source; and a charging control circuit that uses the power received by the power reception plug to charge, via the connection unit, the storage battery pack connected to the connection unit.

Abstract: A rental system includes a first acquirer that acquires first identification information, which is identification information of a user, from a storage device in which the first identification information is stored; a second acquirer that acquires second identification information, which is identification information of a first battery pack, which is a battery pack for rent, from a storage provided in the first battery pack; control circuitry that associates the first identification information acquired by the first acquirer and the second identification information acquired by the second acquirer with each other when the first battery pack is rented to the user; and a storage in which the first identification information and the second identification information are stored in association with each other.

Abstract: A power storage device includes a storage battery, a mounting unit that detachably mounts the power storage device on a motor-driven moving object, an output controller that controls output of driving power from the storage battery to the motor-driven moving object, and a controller that, when the motor-driven moving object is within a particular area, causes the output controller to reduce the driving power supplied from the power storage device to the motor-driven moving object compared to the driving power when the motor-driven moving object is outside the particular area.

Abstract: In a battery charger cradle, a battery incorporated in a battery built-in device is charged by electric power induced to an induction coil. The cradle includes a primary coil for inducing electromotive force to the induction coil, a casing having a top plate atop of which the battery built-in device is placed, a movement mechanism for moving the primary coil along an inner surface of the top plate, and a position detection controller for detecting a position of the battery built-in device placed on the top plate and controlling the movement mechanism to bring the primary coil closer to the induction coil in the battery built-in device. When the battery built-in device is placed on the top plate, the position detection controller detects the position of the battery built-in device, and the movement mechanism moves the primary coil closer to the induction coil in the battery built-in device.

Abstract: A battery pack having a housing and a secondary battery inside the housing, and including a communicator that receives an instruction related to the secondary battery from an external communication terminal device via short-distance wireless communication and a controller that executes an operation in accordance with the instruction by using a status of the secondary battery. The external communication terminal device, by transmitting to the battery pack the instruction, which is related to the status of the secondary battery, acquires a response that is in accordance with the status of the secondary battery from the battery pack, thereby facilitating checking of secondary battery state.

Abstract: An electricity-storage system 110a is configured to be able to charge and discharge by connecting a plug to an electrical outlet 140a. Power discharged from the electricity-storage system 110a is monitored by a reverse-power monitoring device 100 and discharge from the electricity-storage system 110a is executed according to instruction from the reverse-power monitoring device 100, in order to avoid reverse power flow to an electrical grid 150.

Abstract: An information displaying method includes acquiring a battery identifier to identify a battery pack associated with a display device and a device identifier to identify a device to which the battery pack has been mounted, and causing a monitor of the display device to display information indicating that the battery pack corresponding to the acquired battery identifier has been mounted to the device corresponding to the acquired device identifier.

Abstract: a storage battery management method which is performed in a communication terminal, the storage battery management method including: performing communication with a storage battery which is an object to be managed and acquiring storage battery information on the use of the storage battery; storing the acquired storage battery information every time the storage battery information is acquired; and performing communication with a management server managing the storage battery and providing, only when accepting a request for provision of the storage battery information from the management server, storage battery information of the stored storage battery information, the storage battery information in accordance with the request for provision, to the management server.