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: 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 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: A system includes a first circuit in which storage battery units are connected in series, second circuits, adjusters that adjust the amounts of the currents flowing through the second circuits, and a controller that performs at least one of first control and second control. The first control is control in which the controller causes the adjusters to make the voltage of a first storage battery unit higher than the voltage of a second storage battery unit having a higher degree of degradation than the first storage battery unit by adjusting the amounts of the currents flowing through the second circuits and then stops a charge. The second control is control in which the controller causes the adjusters to make the voltage of the first storage battery unit lower than the voltage of the second storage battery unit by adjusting the amounts of the currents flowing through the second circuits and then stops a discharge.

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: 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: An apparatus includes: a storage battery including one or more storage batteries and electrically connected to a predetermined load; a detector which detects a power outage state in which no electric power is being supplied from a power system; a first switch between the power system and the storage battery; and a controller which controls at least the first switch. When the detector detects the power outage state, the controller turns off the first switch to electrically disconnect the storage battery and the power system, and the storage battery causes the one or more storage batteries to discharge and supplies electric power to the controller and the predetermined load.

Abstract: A server apparatus includes a communicator that communicates with a charging apparatus for a storage battery pack or an information terminal, and a controller. When the communicator acquires information indicating a status of the storage battery pack from the charging apparatus or the information terminal by a recommended deadline that is recommended to manage the status of the storage battery pack, compared to when the communicator does not acquire the information indicating the status of the storage battery pack by the recommended deadline, the controller makes an adjustment including at least one of discounting a usage fee for the storage battery pack, and increasing points which may be used to pay the usage fee by a user of the storage battery pack.

Abstract: An electricity distribution device is connected to a system power supply and a battery pack, and includes: a primary power converter circuit converting DC electric power discharged from the battery pack into electric power supplied to the load; a first switch switching conducting and non-conducting states between the primary power converter circuit and the load; and a control circuitry controlling the first switch to switch the conducting and non-conducting states between the primary power converter circuit and the load. The primary power convertor circuit consumes DC electric power discharged from the battery pack, in a state where the first switch switches the non-conducting state between the primary power convertor circuit and the load, and a current value is acquired when discharging from the fully-charged state to an empty state. The fully-charged capacity of the battery pack is measured using the acquired current value.

Abstract: An electricity storage device includes a storage battery charged by a charging device, a first connector that detachably connects the electricity storage device with the charging device, a first communicator that performs wireless communication with an information terminal, a second communicator that performs wired communication with the charging device when the electricity storage device is attached to the charging device via the first connector, and a controller that causes, when the first communicator receives, from the information terminal, a wireless setting value for the charging device to establish wireless connection to a specific access point, the second communicator to transmit the wireless setting value to the charging device.

Abstract: An system includes: a first circuit that serially connect storage battery units; second circuits; adjusters that adjust an amount of current flowing at the second circuits; and a controller that executes at least one of first control where voltage at a first storage battery unit is made to be higher than voltage at a second storage battery unit regarding which prediction has been made that a degree of deterioration will be greater than the degree of deterioration of the first storage battery unit, and charging is stopped, and second control where the adjusters are controlled and voltage at the first storage battery unit is made to be lower than voltage at the second storage battery unit, and discharging is stopped.

Abstract: A power supply apparatus includes: a connection unit to which a battery pack is connected; a power conversion unit which converts direct current power output from the battery pack via the connection unit into a first power; a power plug which is connected to an external power source; a power supplying unit to which a power receiving unit of the external apparatus is connected to supply the first power output from the power conversion unit or a second power which is the power supplied from the external power source via the power plug; and a switching unit which switches between outputting the first power to the power supplying unit and outputting the second power to the power supplying unit.

Abstract: A distribution board includes: a pack housing unit which houses a battery pack and includes a connecting unit; and a charge control unit. The battery pack includes a connecting terminal unit for charge and discharge of power and can supply power to the distribution board and another device different from the distribution board. The connecting unit is connectable to and disconnectable from the connecting terminal unit. The charge control unit converts AC power supplied from a power system into DC power, and supplies the DC power to the battery pack housed in the pack housing unit to charge the battery pack.

Abstract: An electricity storage device includes a storage battery charged by a charging device, a first connector that detachably connects the electricity storage device with the charging device, a first communicator that performs wireless communication with an information terminal, a second communicator that performs wired communication with the charging device when the electricity storage device is attached to the charging device via the first connector, and a controller that causes, when the first communicator receives, from the information terminal, a wireless setting value for the charging device to establish wireless connection to a specific access point, the second communicator to transmit the wireless setting value to the charging device.

Abstract: The fuel cell system includes: a power generation unit; an obtaining unit obtaining battery information indicating a storage state of a storage battery; and a control unit selecting one of a first control mode and a second control mode based on the battery information when load power changes from a first load power to a second load power, the first control mode being for supplying power from the power generation unit to the load by causing the power generation unit to generate power without causing the storage battery to charge and/or discharge, the second control mode being for causing the power generation unit to generate power with a change rate of generation power being set to a value smaller than a value in the first control mode, by causing the storage battery to charge and/or discharge.

Abstract: A method includes: (a) receiving identification information of a power storage device that is connected to a charging device, and a value indicating the state of a storage battery included in the power storage device, from at least one of the charging device and the power storage device; (b) associating to each other and storing the identification information of the power storage device and the value indicating the state of the storage battery; (c) prior to charging of the power storage device by the charging device being started, determining the possibility of charging the power storage device by comparing the received value indicating the state of the storage battery with a value indicating a past state of the storage battery that is stored and corresponds to the received identification information of the power storage device; and (d) transmitting information indicating the determined possibility of charging the power storage device to at least one of the charging device and the power storage device.

Abstract: A method including: receiving identification information of a charging device including individual identification information of the charging device, and identification information of a power storage device, which is connected to the charging device, including individual identification information of the power storage device, from at least one of the charging device and the power storage device; determining the possibility of charging the power storage device from the identification information of the power storage device and the identification information of the charging device received; and transmitting information indicating the determined possibility of charging the power storage device to at least one of the charging device and the power storage device.

Abstract: A distribution board includes: a pack housing unit which houses a battery pack and includes a connecting unit; and a charge control unit. The battery pack includes a connecting terminal unit for charge and discharge of power and can supply power to the distribution board and another device different from the distribution board. The connecting unit is connectable to and disconnectable from the connecting terminal unit. The charge control unit converts AC power supplied from a power system into DC power, and supplies the DC power to the battery pack housed in the pack housing unit to charge the battery pack.

Abstract: A battery pack has a communicator storing various communication protocols. When new hardware is connected thereto, the battery pack sequentially transmits a respective communication request signal to request communication with the hardware using a stored communication protocol, and establishes communication. The battery pack transmits the communication request signal using a standard such as a compatibility priority among communication protocols, a frequency priority for communication protocols used according to a history record, a communication speed priority for communication protocols, and so on, thereby achieving quick establishment of communication.

Abstract: A system includes a first circuit in which storage battery units are connected in series, second circuits, adjusters that adjust the amounts of the currents flowing through the second circuits, and a controller that performs at least one of first control and second control. The first control is control in which the controller causes the adjusters to make the voltage of a first storage battery unit higher than the voltage of a second storage battery unit having a higher degree of degradation than the first storage battery unit by adjusting the amounts of the currents flowing through the second circuits and then stops a charge. The second control is control in which the controller causes the adjusters to make the voltage of the first storage battery unit lower than the voltage of the second storage battery unit by adjusting the amounts of the currents flowing through the second circuits and then stops a discharge.