Abstract: An REPP may include a renewable energy source (RES), a first meter associated with a first load, a second meter associated with a second load, a first ESS electrically coupled to the RES and the first meter, a second ESS electrically coupled to the RES and the first meter through a switch, and a controller configured to set a first charge/discharge for the first ESS and a second charge/discharge for the second ESS such that the REPP delivers power to the first load longer than the RES produces power, in response to a trigger condition, actuate the switch such that the second ESS is electrically coupled to the second meter, and set a fourth charge/discharge for the second ESS such that the second ESS maintains a portion of its charge in reserve for the second load.

Abstract: A charging method includes: charging a battery according to a second current value after charging the battery according to a first current value in each of N charging cycles, the second current value being less than the first current value, and N being a positive integer; and charging the battery according to a target cutoff voltage value in the case where a target voltage value is greater than or equal to the target cutoff voltage value at the end of the N charging cycle. The target voltage value is a charging voltage value corresponding to the first current value, and the target cutoff voltage value is a first cutoff voltage value, or the target voltage value is a charging voltage value corresponding to the second current value, the target cutoff voltage value is a second cutoff voltage value.

Abstract: A lighting device may include an elongated housing that defines a cavity. The lighting device may include plurality of emitter printed circuit boards configured to be received within the cavity. Each of the plurality of emitter printed circuit boards may include a plurality of emitter modules mounted thereto. Each of the plurality of emitter printed circuit boards may include a control circuit configured to control the plurality of emitter modules mounted to the respective emitter printed circuit board based on receipt of one or more messages. The lighting device may include a total internal reflection lens for each of the plurality of emitter printed circuit boards. The total internal reflection lens may be configured to diffuse light emitted by the emitter modules of the plurality of emitter printed circuit boards.

Abstract: According to one embodiment, a method, computer system, and computer program product for recovering power from haptic feedback is provided. The present invention may include identifying one or more haptic devices and one or more power recovery devices associated with a user; dynamically monitoring a position and distance of the one or more haptic devices and the one or more power recovery devices; predicting how much power can be recovered by the one or more power recovery devices from haptic feedback generated by the one or more haptic devices based on the position and distance; and change a direction of haptic feedback based on the prediction, position, and distance.

Abstract: A system for storing one or more unmanned aerial vehicles is described herein. The system includes one or more shelves attached to a holding structure, the one or more shelves being configured to support one or more unmanned aerial vehicles (UAVs), the one or more shelves defining one or more shelf areas configured to receive the one or more unmanned aerial vehicles. The system also includes an electrical charging station configured to charge electrical batteries of the one or more unmanned aerial vehicles supported by the one or more shelves; and a data transfer and storage system configured to transfer and store data that is previously stored in a data storage device of the one or more unmanned aerial vehicles in a data storage unit.

Abstract: An estimation system, includes: a secondary battery; a monitoring device that detects a voltage and a current of the secondary battery; and a processor that estimates a full charge capacity of the secondary battery using a detection result of the monitoring device. The processor calculates a first charging rate of the secondary battery using a current integration amount in charging, discharging, or charging and discharging of the secondary battery and using a full charge capacity of the secondary battery that was estimated last time; calculates a second charging rate of the secondary battery using an open circuit voltage of the secondary battery, when a predetermined time has elapsed without charging and discharging since the first charging rate is calculated; and performs correction, when a magnitude of a difference between the first and second charging rates is larger than a threshold, on the full charge capacity based on the difference.

Abstract: Improved overcurrent detection and mitigation systems, methods, and techniques for a BMS are described herein. A BMS monitor may detect an overcurrent using two different techniques. The first technique may detect an overcurrent based on average power over different, overlapping time periods. The second technique may detect an overcurrent based on determining a modeled junction temperature of a switching device.

Abstract: An electronic device includes a charging unit that charges a battery with power supplied from an external device, and a control unit that controls a communication unit of the electronic device such that a communication interval from a start of charging the battery by the charging unit until a battery voltage exceeds a predetermined threshold is shorter than a communication interval after the battery voltage exceeds the predetermined threshold, in a case where power is received from the external device.

Abstract: A method, a controlling unit and an electronic charging arrangement for determining a state of charge of a battery (205) during charging of the battery (205) are presented. The method comprises charging (110) the battery (205) with a charging current (410) during a first time period (T1), interrupting (120) the charging current (410) after the first time period (T1) at least for an interruption time period (T2), determining (130) a change (480) of terminal voltage (420) of the battery (205) during the interruption time period (T2), and determining (140) the state of charge based on the determined change (480) of terminal voltage (420).

Abstract: A sorting mechanism includes a flap that selects a first path connecting from a battery outlet of a charging section to a battery inlet of a first compartment section as a path to introduce a first battery to the first compartment section in a case of housing the first battery in the first compartment section, and that selects a second path connecting from the battery outlet of the charging section to a battery inlet of a second compartment section as a path to introduce a second battery to the second compartment section in a case of housing the second battery in the second compartment section.

Abstract: Methods and apparatus are described herein emulating, by one or more servers on behalf of a mobile computing device, a cloud-based virtual machine. The cloud-based virtual machine may include a virtualized hardware component that provides, as virtual hardware input for a software application executing on the cloud-based virtual machine, either “genuine” virtual hardware input or “simulated” virtual hardware input. Genuine virtual hardware input may be based on an actual hardware signal received from a hardware component of the mobile computing device that corresponds to the virtualized hardware component. Simulated virtual hardware input may be generated independently of any hardware signal associated with the hardware component. Output of the software application may be interactively streamed to the mobile computing device.

Abstract: A pulse controlled charging method for higher temperature charging in addition to the current-reducing operation at ambient temperature. A specific software control strategy for these purposes is proposed, which can be divided into two parts, (a) two-stage charging current control at ambient temperature, which sets different current-limiting transient points for chargers with different outputs; (b) high-temperature pulse charging, which utilizes an internal NTC (Negative temperature coefficient) thermistor inside the charger to detect the internal temperature of the charger, if the temperature exceeds a pre-determined value, the charging process will be stopped for a period of time to avoid the temperature of the charger becoming too high.

Abstract: The system includes one or more busbars couple to an AC line, branch relays each coupled to a busbar and to a respective circuit breaker, and current sensors each corresponding to at least one respective branch relay of the plurality of branch relays. The system also includes a deadfront arranged in front of the plurality of branch relays, and including openings corresponding to the branch relays allowing an electrical terminal of each branch relay to protrude forward through a respective opening. A circuit breaker is engaged with each respective branch relay, on the deadfront to create an array of branch circuit breakers. The combination of relay and circuit breaker allows each branch circuit to be controllable. The relays may include current sensors, such as a shunt, used to determine a branch circuit current and control the relay. Control circuitry manages the relay on-off operation and monitors branch circuit operation.

Abstract: The system includes one or more busbars couple to an AC line, branch relays each coupled to a busbar and to a respective circuit breaker, and current sensors each corresponding to at least one respective branch relay of the plurality of branch relays. The system also includes a deadfront arranged in front of the plurality of branch relays, and including openings corresponding to the branch relays allowing an electrical terminal of each branch relay to protrude forward through a respective opening. A circuit breaker is engaged with each respective branch relay, on the deadfront to create an array of branch circuit breakers. The combination of relay and circuit breaker allows each branch circuit to be controllable. The relays may include current sensors, such as a shunt, used to determine a branch circuit current and control the relay. Control circuitry manages the relay on-off operation and monitors branch circuit operation.

Abstract: A system and method for charging a battery to a threshold voltage. The battery has an output voltage that is lower than the threshold voltage when undercharged. A switch is provided that controls a current flow to the battery. The switch alternates between a closed state and an open state, wherein the current switch only connects the current source to the battery when in the closed state. A sample and hold circuit is provided that samples the output voltage of the battery each time the current switch is in its open state. This produces a saved voltage value. A comparator is used to compare the saved voltage value of the rechargeable battery to the threshold voltage. The charging current is stopped when the comparator determines that the output voltage of the rechargeable battery is at least as great as the threshold voltage.

Abstract: A charging device including a converter and a controller coupled with the converter is provided. The charging device is suitable for charging to an electronic device having a rated input voltage value. The converter can receive a power. Wherein, the controller makes the converter to output a first charging voltage value to the electronic device. The first charging voltage value is greater than the rated input voltage value of the electronic device. Further, a charging method of the charging device is provided.

Abstract: A charging circuit includes a first power source circuit that supplies charging power to secondary batteries; a switch that controls the supply of the power; and a control device that performs switching control of the switch. The control device detects a voltage difference between the secondary batteries before starting charging; starts a timer and starts serial charging of the secondary batteries; on the condition that the voltage difference before the charging has been equal to or larger than a first threshold, if respective voltage values of the secondary batteries have both become equal to or larger than a second threshold before the timer expires, shortens a remaining time on the timer at that time point; and finishes the serial charging of the secondary batteries at the earlier of a time point when the secondary batteries have both become fully charged, or a time point when the timer has expired.

Abstract: The present disclosure provides an electronic device and a battery safety monitoring method and monitoring system. The battery safety monitoring method includes: obtaining a battery voltage of a battery of the electronic device in real time; determining whether a voltage jump occurs in the battery of the electronic device according to the battery voltage obtained in real time; and determining that the battery is abnormal currently, when the voltage jump occurs in the battery.

Abstract: A method and system for estimating a state of health using battery model parameters are provided. The system includes a battery model parameter extractor that is configured to extract liquid-phase diffusivity of Li-ion parameters and a storage unit that is configured to store a mapping table in which states of health (SOH) for each liquid-phase diffusivity of Li-ion parameter are mapped. In addition, a SOH estimator is configured to use the mapping table to estimate the SOH that corresponds to a liquid-phase diffusivity of Li-ion extracted from the battery model parameter extractor.

Abstract: The present invention improves the detection accuracy of the state of charge of a battery. A coulomb count value CC is generated by integrating a charge/discharge current IBAT of a battery (S100). An SOC value SOC1 is calculated (S102). Based on an SOC-OCV characteristic predetermined for the battery, an OCV value OCV1 corresponding to the value SOC1 is generated (S112). A voltage VBAT of the battery is detected (S104). A voltage drop VDROP1 between OCV1 and a detected value VBAT1 of the voltage VBAT is generated (S114). A value OCV2 greater than the minimum operating voltage of the system by ?V, which corresponds to the voltage drop VDROP1, is generated (S116). Based on the SOC-OCV characteristic, an SOC value SOC2 corresponding to OCV2 is generated (S118). Based on the value SOC2, at least one of the values SOC1, CC, CCFULL, and SOC-OCV characteristics is corrected.

Abstract: A device includes a first sensor to generate a movement signal of a user movement; a second sensor to generate a PPG signal of the user; and a processor configured to set each of time periods as a predetermined amount of time to determine one sleeping state of the user, set a first part of the predetermined amount of time in each time period to emit the light, and set a remaining part of the predetermined amount of time in each time period to not emit the light, control the light emitter of the second sensor to emit the light in the first part of each time period and to not emit the light in the remaining part of each time period, and determine, for each time period, the sleeping state of the user based on the movement signal and the PPG signal that are generated for each time period.

Abstract: A method for a vehicle comprises, by a controller, responsive to charge current for a battery exceeding a threshold, inhibiting further charging of the battery. The method further includes, responsive to the vehicle achieving a predefined state following the charge current exceeding the threshold, discharging the battery for a predetermined time at a predetermined current both defined by an amount and duration that the charge current exceeded the threshold to deplate lithium from an anode of the battery.

Abstract: Method and apparatus for contact detection in battery packs are disclosed.

Abstract: Embodiments of the present disclosure provide a charging method, a charging device and a terminal. The charging method includes: when detecting that a battery is charged with a trickle current, acquiring a voltage of the battery; determining a preset voltage range to which the voltage belongs; acquiring a charging current corresponding to the preset voltage range; and charging the battery according to the charging current. During a process that the battery is charged with the trickle current, the battery may be charged with a different charging current when the voltage of the battery belongs to a different voltage range, thereby improving the flexibility of a trickle current charge phase.

Abstract: Described herein are techniques to accurately detect that a secondary battery has been replaced. A secondary battery state detecting device detects a state of a secondary battery installed in a vehicle. The device includes a control unit that learns element values of an equivalent circuit of the secondary battery on the basis of a voltage and a current of the secondary battery. The control unit also compares the element values obtained through learning at different timings and, when at least one of the element values has changed more than or equal to a predetermined threshold value, determines that the secondary battery has been replaced.

Abstract: A method for preparing the supply of electrical power to a vehicle having a supply device from a supply apparatus providing at least a supply voltage, wherein the vehicle and the supply apparatus are separate from one another and releasably electrically connectable to one another by a plug contact disposed in a line between the supply device of the vehicle and the supply apparatus. While preparing the supply of electrical power and after the supply device of the vehicle has been electrically connected to the supply apparatus connected by way of the plug contact, a specific voltage identifying the voltage class of the vehicle is determined. The supply apparatus reports back the determined voltage class to the supply device of the vehicle via a power line communication.

Abstract: A battery management system (BMS) connected to a battery is disclosed. The battery management system includes a battery status component configured to detect one or more parameters of the battery; a timer component configured to compute an amount of time needed to recharge the battery based on one or more of the parameters of the battery; and a scheme initiation component configured to determine an optimal time to begin charging based on the amount of time needed to recharge the battery.

Abstract: A pack for containing and recharging an e-cigarette includes: a re-chargeable pack battery; a first connector which is electrically connectable to an external power source; a first recharging mechanism for re-charging the pack battery using the external power source when the first connector is electrically connected to the external power source; a second connector which is electrically connectable to an e-cigarette contained within the pack; and a second recharging mechanism for re-charging the e-cigarette when the e-cigarette is electrically connected to the second connector. The first recharging mechanism includes a first protection circuit module and the second re-charging mechanism includes a second protection circuit module, wherein the protection modules protect the pack and e-cigarette against excessive voltage or current during re-charging.

Abstract: A unique method for charging a battery includes comparing a parameter to a limit, wherein the parameter relates to previous charging of the battery; determining a current state of the battery; and performing a next charging cycle based on the comparison and/or the current state of the battery. A unique system includes a vehicle, a battery, and a charging system for charging the battery. The charging system includes a controller for determining whether the battery is in short term storage or long term storage; starting a new charge cycle after a first amount of reduction in the charge of the battery if the battery is in short term storage; and starting the new charge cycle after a second amount of reduction in the charge of the battery if the battery is in long term storage.

Abstract: Systems and methods for assessing voltage threshold detection circuitry of individual battery cells within a battery pack supplying power to a vehicle are disclosed. One example system comprises, a plurality of battery cells within a battery pack, a plurality of voltage threshold detecting circuits detecting voltage of the plurality of battery cells, a voltage of a first battery cell of the plurality of battery cells coupled to a first voltage threshold detecting circuit of the plurality of voltage threshold detecting circuits, and a network that selectively couples a second battery cell to the first voltage detecting circuit while the first battery cell is coupled to the first voltage detecting circuit.

Abstract: The present disclosure relates to an energy supply device for providing an output voltage and an output current. The device includes a first operating state, a second operating state, a measuring assembly, and a signal generator. The measuring assembly is configured to sense a current amplitude of the output current of the energy supply device. The signal generator is configured to produce the output voltage and the output current. The signal generator is further configured to reduce a voltage amplitude of the output voltage of the energy supply device in the first operating state to change to the second operating state if the sensed current amplitude falls below a first current threshold value and to increase a voltage amplitude of the output voltage of the energy supply device in the second operating to change to the first operating state if the sensed current amplitude exceeds a second current threshold value.

Abstract: A circuit device includes a driver that performs drive control of a resonant circuit and a signal output unit having an input node NAIN to which a resonance signal (AIN) from the resonant circuit is input, an output node NAOUT that outputs an output signal (AOUT) that is based on the resonance signal and a switch element that is provided between the input node NAIN and the output node NAOUT, the driver controlling at least one of a first drive current in an ON period of the switch element and a second drive current in an OFF period of the switch element.

Abstract: A charging apparatus includes a power conversion circuit for charging a battery, and a charging control circuit. The battery has a battery net voltage. The charging control circuit includes a conversion control circuit, a sensing circuit and a determining circuit. The conversion control circuit controls the power conversion circuit to generate plural pairs of DC output voltage levels and DC output current levels, wherein each DC output voltage level and its corresponding DC output current level are a voltage-current pair. The sensing circuit senses the DC output voltage levels and/or the DC output current levels. The determining circuit determines the battery net voltage according to plural voltage-current pairs.

Abstract: A process for conditioning an electrochemical cell system comprising at least two electrochemical cells comprises selecting from the fuel electrodes of the electrochemical cells groups comprising: a charged group and a reset group. The process also comprises holding the fuel electrodes within the charged group at a predetermined state of charge associated with a set concentration of metal fuel ions in solution in the ionically conductive medium. The process further comprises resetting the fuel electrodes within the reset group. An electrochemical cell system includes a plurality of fuel electrodes and one or more controllers configured to regulate the concentration of reducible metal fuel ions in solution with an ionically conductive medium by maintaining a predetermined state of charge of at least one of the fuel electrodes, and initiate a charging, discharging, or resetting process on at least one other fuel electrode. Other features and embodiments are also disclosed.

Abstract: A power supply apparatus includes a wireless power supply unit that wirelessly supplies power to an electronic device, a wireless communication unit that wirelessly communicates with the electronic device, a detection unit that detects a change of a position of the electronic device, and a control unit that controls, based on a result detected by the detection unit, a frequency of a communication between the wireless communication unit and the electronic device.

Abstract: A method and an apparatus for rapid charging in an electronic device are provided. In a method for charging a battery of an electronic device, an operation environment of the electronic device is determined. A charging current corresponding to the operation environment of the electronic device is set. Battery charging is started using the set charging current. The battery is charged using a maximum allowed charging current, such that a battery charging time may be reduced.

Abstract: A battery powered thermostat senses a battery voltage drop to a low-battery voltage level. At that point, the thermostat microprocessor provides a LOW BATTERY alert message, visible on the thermostat display. If the occupant fails to replace the power cells or does not notice the LOW BATTERY message, when the battery voltage drops further the microprocessor alters the thermostat set points. This reduces the number of heating or cooling cycles per day, and reduces the number of actuations of the latching relays in the thermostat, conserving remaining battery life. At a further drop in battery voltage the set points are changed additionally. Additional functions, such as second level heat, second level cooling, and fan speed, are disabled. The change in heat or cooling cycles induces the occupant to check the thermostat where he or she will notice the LOW BATTERY message.

Abstract: A method and system for controlling charge and discharge of a battery are provided. The method includes detecting a battery temperature using a temperature sensor and determining, by a controller, a state of charge (SOC) of the battery, a first maximum discharging power value, and a first maximum charging power value that correspond to the battery temperature. The controller selects a lowest SOC from among at least one SOC to use a maximum discharging power equal to the determined first maximum discharging power value and resets the first maximum charging power value to a second maximum charging power value that corresponds to the selected lowest SOC. Further, the controller is configured to perform a charge and a discharge of the battery with the reset second maximum charging power value at the detected battery temperature.

Abstract: A power converter (such as a battery charger) includes a cable configured to deliver a source voltage and current to a load, where the cable is anticipated to drop some voltage as the load current increases. The power converter also includes a regulator having a feedback-adjusting transistor configured to gradually compensate for the dropped cable voltage as the load current increases. The transistor has a gate capacitance and a resistance forming an integrator configured to filter a volt-second product of an output waveshape of the converter to derive an average voltage correlated to the load current as the load current increases. The regulator is configured to increase a gate voltage of the transistor through a threshold region of the transistor and gradually turn the transistor on. The transistor is configured to apply an adjusting resistance coupled to a feedback sensing node of the regulator to increase the source voltage to compensate for the cable voltage drop and improve the load voltage regulation.

Abstract: Embodiments of the present invention provide a battery charging method, related to the field of electronic technologies and invented to shorten the charging time. The method includes: determining, by a mobile terminal, a specification parameter of a battery to be charged; determining, by the mobile terminal, a charging parameter corresponding to the specification parameter according to the determined specification parameter; and charging, by the mobile terminal, the battery to be charged according to the determined charging parameter. Embodiments of the present invention also provide a corresponding mobile terminal. The present invention is applicable to charging of a mobile terminal.

Abstract: Systems and methods comprise setting a digital-to-analog converter of a charger to a set voltage. The set voltage is a maximum voltage allowable for a battery type. An output voltage of the charger is determined when the charger is operating at the set voltage. An offset voltage is determined by comparing the output voltage to the set voltage. A cutoff voltage of a battery is determined using the offset voltage and the open circuit voltage. Charger voltage is adaptively adjusted in response to the cutoff voltage, and the adjusting prevents an over potential to the battery.

Abstract: The present invention refers to a robot, a docking system and a docking method therefor. The docking system comprises a first circuit located in a robot. The first circuit comprises a power storage unit for supplying power to the robot and a first main control unit for controlling the movement of the robot. The docking system further comprises a first group of terminals electrically connected with the first circuit, and a second circuit located in a docking station. The second circuit comprises a power supplying unit. The docking system further comprises a second group of terminals electrically connected with the second circuit. The power storage unit or the power supplying unit provides a detection power. The detection power generates a detection current when it flows across a detection circuit. The detection circuit is constructed by the first circuit and the second circuit through the first group of terminals docking with the second group of terminals.

Abstract: A method and a system for making a one-time change to a primary departure schedule of a battery-electric vehicle for charging or pre-climate operations without affecting the future departure times of the primary departure schedule. The system can be a vehicle including an ECU, a memory, a battery, a charger connected to an external power source, a BMS, an HVAC and a display. The method may include receiving an alternate departure date and time different from the primary departure schedule, deactivating the charging or pre-climate operations based on the primary departure schedule and activating charging or pre-climate operations based on the alternate departure date and time. The method and system may also include receiving an immediate charge mode designation, deactivating the charging or pre-climate operations based on the primary schedule and immediately activating the charging operations without affecting the primary departure schedule.

Abstract: According to an embodiment, a charge-discharge control device includes a receiving unit, a selecting unit, and a group controller. The receiving unit receives feasibility information. The selecting unit selects, of electric power devices that send the feasibility information indicating disallowance of simultaneously belonging to a plurality of charging groups, one electric power device as a representative device of the charging group to which belongs that electric power device; and selects, of electric power devices that send the feasibility information indicating disallowance of simultaneously belonging to a plurality of discharging groups, one electric power device as a representative device of the discharging group to which belongs that electric power device. Via the selected representative device, the group controller controls the other electric power devices belonging to the charging group or the discharging group to which belongs the selected representative device.

Abstract: The present invention provides a quick charge method belonging to the field of the battery and particularly relates to a quick charge method for lithium ion battery and polymer lithium ion battery.

Abstract: A battery pack, and a method of controlling the battery pack are disclosed. The battery pack detects consumption current when a load is not turned on, and shuts off power when a load is turned off or in stand-by mode, thereby preventing consumption current of the load from flowing.

Abstract: A charging circuit includes a power path control unit which switches a first switch connected between a system connection terminal and a battery connection terminal on while not charging, and switches the first switch on and a second switch connected between an external power supply input terminal and the system connection terminal on while charging so as to supply power to a system and charge a battery. A voltage difference between the external power supply input terminal and the battery connection terminal is detected, a current flowing between the external power supply input terminal and the system connection terminal is detected, and it is determined that an external power supply is disconnected based on the detection results of the voltage differences and the current.

Abstract: The method for charging or discharging a battery comprises measurement of the voltage at the terminals of the battery and comparison of the measured voltage with an end of charging or discharging voltage threshold. The method also comprises measurement of a temperature representative of the temperature of the battery and measurement of the current flowing in the battery to form a pair of measurements. The voltage threshold is then determined according to the pair of measurements. Charging or discharging of the battery is stopped when the voltage threshold is reached.

Abstract: A charging control method of a master device receiving an operating power from an auxiliary battery device or an internal battery, the auxiliary battery device including a battery having a first power supply and a first power supply output port for outputting the first power supply, is provided. The method includes converting a second power supply to the first power supply upon detecting the second power supply at an input port of the master device in order to provide the converted first power supply as an operating power of the master device and/or a charging power of the internal battery, and detecting a connection with the auxiliary battery device upon detecting the first power supply at the input port in order to provide the first power supply as the operating power of the master device and/or the charging power of the internal battery without voltage drop.

Abstract: A PM-ECU executes a program including: a step (S104) of estimating pre-charge SOC(1) when a plug-in charge is started (YES in S100), a step (S108) of calculating an integrated value of charging current when integration permitting conditions are satisfied (YES in S104, YES in S106), a step (S112) of setting a final integrated value when the charge is completed, a step (S116) of estimating post-charge SOC(2) when an ignition switch is turned on (YES in S114), a step (S122) of calculating a full-charge capacity of this cycle when calculation conditions are satisfied (YES in S120), a step (S128) of calculating a new full-charge capacity when the full-charge capacity of this cycle is within a specified range (YES in S124), and a step (S130) of updating the full-charge capacity by setting the new full-charge capacity as the current full-charge capacity when the new full-charge capacity is within a specified range (YES in S128).