Abstract: Presenting a new approach to architect footwear as a communication and energy-transporting platform for personalized smart living. This is done by integrating the most advanced technologies today, along with some known technologies still under development, to provide solutions to power on demand for all personal and wearable devices. The systems, methods, and apparatuses disclosed in this invention make our personal and wearable devices smarter, thereby providing higher practical functions and more efficiency to our everyday lives.

Abstract: A robot according to an embodiment may include: a plurality of wheels, a motor to drive one or more of the wheels; a supporting plate to which the plurality of wheels are coupled; and a charging module coupled to the front end of the supporting plate. The charging module may include a terminal providing an electrical connection with a charging station when the robot docks with the charging station; and a housing providing an internal space, the terminal rotating or moving vertically in the internal space when the robot docks with the charging station.

Abstract: A battery management apparatus, including: a sensing unit configured to generate battery information indicating a battery voltage and current; and a control unit configured to: determine a differential voltage curve based on a history of the battery information from the sensing unit during a sensing period while the battery is being charged with a first current rate current, the differential voltage curve indicating a relationship between a remaining capacity of the battery and a ratio of a voltage change amount of the battery to a remaining capacity change amount of the battery during the sensing period; detect feature points from the differential voltage curve; determine whether stabilization for an electrode material of the battery is required, based on a feature value of each of the feature points; and output a control signal to induce the battery to be discharged with a smaller second current rate current, when stabilization is required.

Abstract: An adaptor for a sensor having a sensor connector. The adaptor includes a receptacle base configured to, upon insertion of the sensor connector, align with the structural shape, and/or size, and/or configuration of the sensor connector and establish a structural connection therewith. The adaptor may also include one or more receivers, configured to, in response to the conformance in the structural shape, and/or size, and/or configuration of the receptacle base, move relative to the receptacle base to align with axis of an optical arrangement or pin arrangement of the sensor connector. Such an alignment is to result in the mating of the adaptor and sensor connector which thereby establishes an electrical connection or an optical connection therewith. The adaptor may also include a processing device configured to determine one or more characteristics of output from the sensor connector.

Abstract: An electronic system can include a charged system and a charging system. The charged system can include a charger and a battery configured to be charged thereby. The charger may be configured to receive power from a charging system that includes a power converter configured to supply power to the charger and a controller configured to control the power converter. The controller may be configured to receive feedback information from the charged system, including one or more voltages. The controller may be further configured to determine an output voltage compensation value for the power converter as a function of the feedback information and to set an output voltage of the power converter as a function of the compensation value. The compensation value and output voltage may be selected to maintain a preselected headroom between a battery charging target voltage of the charger and a voltage supplied to the charger.

Abstract: Disclosed is multi-functional smart wireless charging device for cell phone in horizontal placement and vertical placement, including a hollow main body rear shell. A protection assembly is fixedly provided in the main body rear shell. A main PCB is provided on top of the protection assembly. One side of the PCB being abutted against a wireless charging PCB fixedly provided on top of the protection assembly. The wireless charging PCB is connected with a main body front shell on one side of the wireless charging PCB remote from the main PCB. A wireless charging bottom shell is slidably connected with the main body front shell at its one side remote from the main body rear shell. One side of the wireless charging bottom shell is provided with a wireless charging front shell. The device may also charging by wire when wireless charging is not carried out.

Abstract: According to an embodiment, a power transmission system includes a power transmission antenna, a first rail and a second rail. The power transmission antenna is disposed facing the power reception antenna installed on the side surface of the cart stored in the storage position. The first rail includes a first groove that guides, among a plurality of wheels for moving the cart to the storage position, a first wheel that is closest to the power transmission antenna while the cart is stored in the storage position, and that causes a distance between the power reception antenna and the power transmission antenna installed on the side surface of the cart to be within a power transmittable range. The second rail includes a second groove that guides, among the plurality of wheels for moving the cart, a second wheel that is different from the first wheel to the storage position.

Abstract: A method for rapidly recharging a military or a non-military device having an electric battery is provided. The method includes recharging the military or non-military device and the recharging includes delivering coolant to the military or non-military device to cool the electric battery. A military device, a non-military non-vehicular device, a mobile charging station and a stationary charging station are also provided.

Abstract: A system is disclosed for protection of a lithium ion battery. The system includes a first light source and a first optical guide including first and second ends. The first optical guide is in optical communication with the light source at the first end of the first optical guide. A first material is disposed on an exterior surface of the first optical guide in fluid communication with an exterior surface of the lithium ion battery. The first material is optically responsive to a first gas indicative of an overheat condition or combustion of the lithium ion battery. A first light detector is in optical communication with the second end of the first optical guide.

Abstract: A system and method for providing risk mitigation and resilience to the electrical grid system by allowing bi-directional electricity usage from a distributed network of energy storage stations to form a large, distributed resource for the grid. A machine learning optimization module ingests various forms of data—from grid telemetry to traffic data to trip-to-trip data and more—in order to make informed spatiotemporal decisions about strategically placing and balancing energy stores across various regions to support optimum energy usage, risk mitigation, and grid fortification. Energy stores are then sent updated parameters as to the amount of energy to hold or release.

Abstract: Provided is a smart card that can prevent malfunction in the smart card and improve stability of radio frequency communication by removing interference of an AC signal generated at the antenna terminal of the smart card. The smart card includes: a dual antenna configured of a first antenna and a second antenna for performing radio frequency communication with a card reader; an IC chip electrically connected to the first antenna to perform radio frequency communication through the first antenna; a power generation unit for generating DC power by converting a radio frequency signal received through the second antenna; a control unit for receiving the DC power generated from the power generation unit to control various modules; and a cut-off unit arranged between the first antenna and the IC chip to cut off a radio frequency signal received through the first antenna under the control of the control unit.

Abstract: An envelope tracking system includes an envelope signal generator, a supply modulator coupled to the envelope signal generator, the supply modulator comprising a switching regulator path configured to provide an output voltage at an output node to a power amplifier when in an average power tracking (APT) mode, the switching regulator path configured to operate together with a linear path to provide the output voltage at the output node to the power amplifier when in an envelope tracking (ET) mode, a capacitor having a first and second terminal, the first terminal coupled to ground, a switch coupled between the output node and the second terminal of the capacitor, the switch being configured to selectively disconnect the capacitor from the output node, and a circuit coupled between the output node and the second terminal of the capacitor, the circuit comprising a bi-directional current-limiting switch, the circuit configured to charge or discharge the capacitor such that a voltage across the capacitor changes

Abstract: A handy terminal has a housing, a secondary battery embedded in the housing, and a terminal portion including a charging terminal for charging the secondary battery, and is used by gripping the housing with one hand, wherein: the housing is provided with a grip assumed region extending, within a predetermined range, upward from the lower end of the front surface, the back surface, the left-side surface, and the right-side surface in a vertical direction and capable of being touched by one gripping hand of an operator during operation; and the terminal is provided outside the grip assumed region in the right-side surface.

Abstract: The present disclosure discloses a charging circuit, a terminal and a charging method, and belongs to a field of electronic circuit technologies. The charging circuit includes: a control circuit and a voltage reduction circuit connected to the control circuit; wherein the control circuit is configured to obtain a feedback signal indicating a generation frequency of a control signal, generate the control signal based on the feedback signal, and send the control signal to the voltage reduction circuit; and the voltage reduction circuit is configured to obtain an input voltage and the control signal, perform voltage reduction processing on the input voltage based on the control signal and output an output voltage to a battery, wherein an output current corresponding to the output voltage is greater than an input current corresponding to the input voltage, and the output voltage is configured to determine the generation frequency.

Abstract: A mobile terminal, a peripheral device, and a charging method thereof that relate to the field of electronic device technologies, where the mobile terminal and the peripheral device are separately powered, and when coupled by a connector, the mobile terminal and the peripheral device charge each other. The mobile terminal includes a first switch, a second switch, a first charging port, a first charging circuit, a first connector, a first battery, and a first electronic controller.

Abstract: Systems and methods for charging an electric bus having a charging interface on its roof may include determining that an approaching bus is supposed to be charged at the charging station, lowering the charging head of the charging station to land on the roof of the bus, and moving the bus with the charge head on its roof to engage the charging head with the charging interface.

Abstract: Control electronics for a battery system of a vehicle with a low voltage battery include a first direct current to direct current (DC/DC) converter including a first input terminal configured to be connected to the battery system, and an output terminal connected to a microcontroller, a wake-up circuit including a low voltage sub circuit and a sub circuit on a high voltage side that are galvanically isolated, and a second DC/DC converter including an input terminal configured to be connected to the low voltage battery, and an output terminal connected to the wake-up circuit, wherein the low voltage sub circuit is configured to transmit electrical energy received from the second DC/DC converter to the sub circuit on the high voltage side, and wherein the sub circuit on the high voltage side is configured to receive electrical energy from the low voltage sub circuit and to transmit the electrical energy to the first DC/DC converter.

Abstract: Systems and methods are provided for charging a battery system of an Information Handling System (IHS) using a multimode AC adapter. Information reported by the multimode adapter is used to determine its capabilities, including whether it supports USB-PD transmission and also supports high-power transmissions of a voltage greater than the USB-PD voltages. The charge state of the battery system is monitored. When the battery is in a pre-charge state, the battery is charged using USB-PD transmissions negotiated with the multimode adapter. When the battery is in a bulk-charge state, the battery is charged using a high-power transmission negotiated with the multimode adapter. When the battery is in a top-off-charge state, the battery is charged using USB-PD transmissions negotiated with the multimode adapter. In light of the charging efficiency of a battery varying based on its charge level, the multimode adapter supports efficient charging at different charge levels.

Abstract: Provided is a charge base for mounting a portable terminal having a shoulder belt and for charging the mounted portable terminal. The portable terminal charge base comprises: a base portion; a terminal accommodating portion which is disposed over and to the front of the base portion, has a groove shape extending in a width direction W of the base portion, and accommodates a lower part of the portable terminal; a shoulder belt accommodating portion which is disposed to the rear of the terminal accommodating portion over the base portion, has a groove shape extending in the width direction, and accommodates at least a part of the shoulder belt of the portable terminal mounted to the terminal accommodating portion; and a contact pin which is disposed in the terminal accommodating portion and electrically connects with a charge terminal provided in the portable terminal accommodated in the terminal accommodating portion.

Abstract: An output protector for chargers connected to the output terminal of charger, comprising a MOS tube as electronic switch, a light switchover signal terminal, a power output V+ terminal, a power GND terminal connected to the source of the MOS tube, and a power output V? terminal connected to the drain of the MOS tube. The power output V+ terminal and power GND terminal are connected to the output terminal anode and cathode of charger respectively. The light switchover signal terminal is connected to the charging state signal output end of charger. The power output V+ terminal and power output V? terminal are connected to the anode and cathode of battery, and the output protector has a triode on-unit which drives the MOS tube after the power output V+ terminal and power output V? terminal are connected to the anode and cathode of battery respectively.

Abstract: A vehicle performs external charging in which a battery mounted on the vehicle is charged with power supplied from a charger provided external to the vehicle in accordance with a prescribed charging standard. The vehicle includes: a short-distance communication module and a navigation screen that provide a user of the vehicle with information on the external charging; and an ECU that controls the short-distance communication module and the navigation screen. The ECU controls the short-distance communication module and the navigation screen, when failure to perform the external charging in accordance with the charging standard is caused by the charger, to provide the user with at least one of information that the failure is caused by the charger and information that it is recommended to use another charger other than the charger.

Abstract: One example includes a battery charging system configured to charge a battery associated with a mobile device. The battery charging system includes a transformer configured to receive an AC charging current via a charging cable at a primary inductor and to generate an AC secondary current at a secondary inductor. The battery charging system also includes a rectifier system configured to rectify and filter the AC secondary current to generate a DC charging current that is provided to charge a battery.

Abstract: Disclosed is an apparatus for centralized charging of electronic products, including a base, where charging grooves, charging racks, and a charging stand are provided on the top surface of the base in sequence from front to back; a charging head A is provided in the charging groove; a connecting piece A matching a plug-in type charging head is provided at the lower part of the charging rack; the base is further provided with connecting pieces B matching the plug-in type charging heads; the connecting pieces B are located at one side of the charging stand; and the charging head A, the connecting piece A, and the connecting piece B are electrically connected to an output end of a power adapter provided in the base, respectively.

Abstract: A portable power bank for charging a mobile computing device is described, and a dynamic charging efficiency is monitored while the power bank is charging the mobile computing device. Particularly, instantaneous power output of a battery of the power bank is compared to power received by a battery of the mobile computing device to determine efficiency. The charging of the mobile computing device by the power bank is interrupted and/or resumed based upon the charging efficiency at any given time, thereby preventing inefficient use of the power bank.

Abstract: A rechargeable charger that includes a rechargeable battery and charging control circuitry for controlling a charging of at least one portable rechargeable device. The charging control circuitry is configured such that charging is automatically and periodically interrupted after reaching a charged state. During a charging phase energy is transferred from the rechargeable battery to the portable rechargeable device via interface circuitry until gauging circuitry indicates that a threshold value has been reached upon which a pause phase is entered where charging of the portable rechargeable device from the rechargeable battery is suspended. In the pause phase a timer is started, and when the timer has elapsed, the charging phase is started again. As a result, phases of charging the portable rechargeable device and phases of switching off the charging alternate.

Abstract: A wireless power transfer system comprising a transmitter and a receiver. The transmitter arranged to generate a varying electric field, and the receiver located in the varying electric field. The receiver comprising a first element and a second element. The first element and the second element having different geometries so different charge densities are induced on the first element and the second element by the varying electric field such that, in use, a current flows between the first element and second element, through a load connected between the first element and second element.

Abstract: An electronic device and method are provided for frequency interference cancellation. The electronic device includes a coil, a wireless power receive circuit, a charging circuit, a display, and a processor. The processor may be configured to perform wireless charging with power wirelessly received from a wireless charger, change, via the charging circuit, a charging current of the electronic device from an initial current level to a first current level, based on the display being switched on during wireless charging, change, via the wireless power receive circuit, a charging voltage of the electronic device from an initial voltage level to a first voltage level, transmit, via the coil, a packet for changing a charging voltage of the wireless charger, change, via the wireless power receive circuit, the charging voltage of the electronic device to a second voltage level upon transmission of the packet, and change the charging current to the initial current level.

Abstract: A charging module for use with a charging station that includes a first connector, includes a housing, a second connector, and a guide structure configured to guide the first connector in a vertical direction. The guide structure includes a guiding member fixed to the second connector, or a guiding mechanism that elastically connects the second connector to the housing and allows the second connector to move with respect to the housing in the vertical direction.

Abstract: An electrical device may be provided with: a housing to which a battery pack is attached detachably by sliding the battery pack in a sliding direction; a battery connection terminal configured to be electrically connected to the battery pack attached to the housing; and a terminal cover configured to move between a protection position for protecting the battery connection terminal and an exposure position for exposing the battery connection terminal. The housing may include a cover rail extending along the sliding direction. The terminal cover may include: a cover body having a shape that at least partially covers the battery connection terminal; and a hook formed integrally with the cover body, and the hook is engaged with the cover rail so as to slide in the sliding direction.

Abstract: An information processing apparatus includes a first interface, a second interface, and a controller configured to receive first power source information related to a power source of a first external device connected to the first interface, receive second power source information related to a power source of a second external device connected to the second interface, select one of the first external device and the second external device to which a power request is to be transmitted based on the first power source information and the second power source information, and transmit a power request to the selected external device based on a result of the selection processing of one of the first external device and the second external device.

Abstract: Provided is a server (10) having an attribute information receiving unit (15) which receives attribute information of an electric power output apparatus (30) having a function of outputting electric power from the electric power output apparatus (30); an output condition transmitting unit (18) which transmits an output condition determined in accordance with the attribute information to the electric power output apparatus (30); an analysis result receiving unit (16) which receives a processing result obtained by performing predetermined processing on output waveform data at the time when the electric power output apparatus (30) outputs electric power according to the output condition; and an evaluating unit (17) which calculates an electric power output performance of the electric power output apparatus (30) on the basis of the processing result and the output condition.

Abstract: Provided is a battery management apparatus, a battery management method and an energy storage system including the same. The battery management apparatus according to an embodiment of the present disclosure includes a first battery pack, a second battery pack, a first switch connected in series to the first battery pack between a first terminal and a second terminal, a second switch connected in series to the second battery pack between the first terminal and the second terminal, and a control unit. The control unit is configured to turn on both the first switch and the second switch when a voltage difference between the first battery pack and the second battery pack at a time point at which both the first switch and the second switch are turned off is less than a threshold voltage.

Abstract: Provided are a charging control method, a charging control apparatus, and a computer readable storage medium. The charging control method includes the following. A charging parameter currently used for charging a battery is acquired, when an electronic device is in a constant-current charging mode. A temperature of the battery is acquired when the charging parameter reaches a preset parameter. A charging cut-off current of the battery is regulated according to the temperature. The charging cut-off current is continuously applied to the battery until the battery is fully charged.

Abstract: A method of configuring a custom insert of a charger, wherein the custom insert is for aligning a receiver charging element of a hearing device and a transmitter charging element of a charger, includes: obtaining a digital three-dimensional hearing device model comprising a representation of the receiver charging element, wherein the digital three-dimensional hearing device model is based on a digital scan of an ear; obtaining a digital three-dimensional charger model comprising a representation of the transmitter charging element; obtaining a generic digital three-dimensional insert model; obtaining a digital cavity representing a cavity in the custom insert; and creating a custom digital three-dimensional insert model based on the digital cavity and the generic digital three-dimensional insert model, such that the representation of the receiver charging element in the digital three-dimensional hearing device model and the representation of the transmitter charging element in the three-dimensional charger mo

Abstract: In one or more embodiments, one or more systems, methods, and/or processes may: charge a battery from a first end of discharge (EOD) voltage to a first voltage; discharge the battery to a second EOD voltage; in response to discharging the battery to the second EOD voltage, withhold power from one or more cells of the battery to at least one component of a system; charge, from the second EOD voltage to a second voltage, greater than the second voltage and less than the first voltage; discharge the battery to a third EOD voltage; in response to discharging the battery to the third EOD voltage, withhold power from the one or more cells to the at least one component; charge, from the third EOD voltage to a third voltage, greater than or equal to the second EOD voltage; and discharge the battery to the first EOD voltage.

Abstract: The present disclosure provides a device to be charged, a wireless charging device and a control method thereof. The device to be charged includes: a wireless receiving circuit, configured to receive an electromagnetic signal transmitted by a wireless charging device and convert the electromagnetic signal to a first output voltage; a step-down circuit, configured to perform step-down process on the first output voltage to obtain a second output voltage, and charge a battery of the device to be charged based on the second output voltage; a temperature detecting circuit, configured to detect a temperature of the device to be charged; a communication control circuit, configured to send feedback information to the wireless charging device, when the temperature is larger than a preset threshold. The feedback information is configured to trigger the wireless charging device to control wireless charging process to reduce the first output voltage.

Abstract: A battery cell evaluation apparatus is provided that includes a current source configured to output a current at a frequency, measurement circuitry, and control circuitry. The control circuitry may be configured to electrically connect a cell of a battery to the current source and the measurement circuitry to apply the current across terminals of the cell and receive a measurement of an impedance phase shift of the cell as phase shift data from the measurement circuitry. The control circuitry may also be configured to compare the phase shift data to a protection profile, and trigger a protection device to prevent damage to the battery based on the comparison of the phase shift data to the protection profile.

Abstract: A battery pack containing a frame; and two or more battery cells installed to the frame. The two or more battery cells are interconnected by a configurable connector which is configured to enable electrical connections between the two or more battery cells. The configurable connector is adapted to be configured in a first status or a second status. In the first status, the two or more battery cells are electrically connected, and in the second status, the two or more battery cells are not electrically connected. The battery pack is not fully operational without the terminal holder inserted, therefore before it is delivered to the end user the energy loss due to self-discharging during storage and shipping can be minimized.

Abstract: The present disclosure provides a connector for coupling a first electronic device and a second electronic device with a power source to enable the power source to provide a current to the first electronic device and the second electronic device, the connector includes: a first connector component configured to be coupled with the first electronic device; a power-supplying connector component configured to be coupled with the power source; a power line configured to couple the second electronic device and the first connector component to the power-supplying connector component; a data line having a first end coupled with the second electronic device, and a second end coupled with the first connector component; and a power-supplying state detection circuit configured to be coupled with the power-supplying connector component and detect whether the power-supplying connector component is coupled with the power source; and a message transmission line having a first end coupled with the power-supplying state detec

Abstract: An apparatus for controlling one or more operations performed by a robotic device in response to a status of a power source includes: a monitoring unit configured to monitor one or more parameters associated with the power source that provides power to the robotic device and to determine one or more performance indicators for the power source based on one or more of the parameters, a processor configured to, under instruction of a program that defines a plurality of modes for one or more operations performed by the robotic device when reacting to a stimulus, assign one of the plurality of modes to an operation of the robotic device in response to one or more of the performance indicators for the power source, where an amount of energy required from the power source to perform the operation varies according to which mode is assigned to the operation, and a control unit configured to control the robotic device to perform the operation in accordance with the mode assigned to the operation when reacting to the st

Abstract: Batteries for electric marine propulsion systems, and associated systems and methods are disclosed. A representative power system includes an enclosure having a first end and a second end opposite the first end, with each of the first end second ends including and inwardly-extending portion forming a handle region and having an opening into an interior of the enclosure. The power system can further include an electrical connector carried by the inwardly-extending portion and positioned beneath the opening of the second end, and at least one battery cell positioned in the interior of the enclosure and electrically coupled to the electrical connector. The system can still further include at least one fan positioned in the interior of the enclosure along an airflow path between the opening at the first end and the opening at the second end.

Abstract: Systems and apparatuses include a control circuit and a switching circuit. The control circuit is structured to communicate with a real-time-clock battery and to selectively communicate with a vehicle battery. The control circuit is structured in an OFF arrangement when a wake supply voltage is received from the vehicle battery and in an ON arrangement when no wake supply voltage is received. The switching circuit is structured to provide communication between the real-time-clock battery and a real-time-clock power pin of a controller with a voltage drop of about 0.1 volts or less when the control circuit is in the ON arrangement and to inhibit communication between the real-time-clock battery and the real-time-clock power pin when the control circuit is in the OFF arrangement.

Abstract: Aspects of the disclosure relate to determining a next vehicle task for a vehicle of a fleet. Vehicle data from the vehicle, charger data about at least one charger, and demand data may be received and used to determine the next vehicle task. The vehicle may be directed to the next vehicle task. Determining a next vehicle task may further be based on predictions made using the vehicle data, the charger data, and the demand data. Heuristics may also be used in determining a next vehicle task.

Abstract: The disclosure provides a USB expanding device comprising a plurality of USB type-C connection units, a transmission controller, and a main controller. Each of a USB type-C connection unit includes a USB type-C port, a multiplexer, and a power transmission controller. The USB type-C port provides for connecting to an external device. The multiplexer connects to the USB type-C port and the power transmission controller. The transmission controller connects to the multiplexers of each of the USB type-C connection units for controlling the transmission of data, and the main controller connects to the power transmission controllers of each of the USB type-C connection units to distribute power according to the charging request information of the power transmission controllers.

Abstract: A method of controlling a battery includes controlling a latching relay unit in response to vehicle state information, and converting a battery system of a vehicle into either a high-voltage battery system or a low-voltage battery system according to control of the latching relay unit.

Abstract: A charging control device of a vehicle-mountable control system includes: a plurality of chargers corresponding to respective power feeding methods; a charging communication device configured to communicate with a charging facility external to a vehicle; and an integrated controller configured to communicate with each of the plurality of chargers and the charging communication device. The electric power of the charging facility is supplied to a vehicle-mounted battery through the charger corresponding to the power feeding method of the charging facility. The plurality of chargers, the charging communication device and the integrated controller are connected to one another through a first communication line used only for charging control. Of the plurality of chargers, the charging communication device and the integrated controller, only the integrated controller is connected to a second communication line to which a traveling controller is connected.

Abstract: Smart battery charging solutions are disclosed. The smart charging solutions of the disclosure enable a user to configure a mobile device with individualized battery charging settings. The user specific settings may be combined with system settings to generate rules on battery charging. Context awareness is achieved through various sensors and through information sharing within and among the systems of the mobile device. The battery charging rules and the context awareness information are used together in controlling the charging of a battery.

Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may be a wireless charging mat or other device with a charging surface. The wireless power receiving device may be a portable electronic device receiving transmitted wireless power signals from the wireless power transmitting device while resting on the charging surface. A sensor in the wireless power transmitting device or elsewhere in the system may detect user input. In response to the user input, the wireless power receiving device may display information on the state of charge of a battery in the wireless power receiving device and other charging status information on a display of the wireless power receiving device. The user input may be a finger tap on the charging surface or other user input.

Abstract: A contact function-equipped multichannel charge/discharge power supply has: first and second charge/discharge probes respectively connected to positive and negative electrodes of secondary batteries and first and second voltage-measurement probes, respectively connected to the positive and negative electrodes of the batteries; and charge/discharge means each provided for each of the batteries and each connected to a pair of the first and second charge/discharge probes. The power supply includes: trays each having a right-angled-quadrilateral shape in plan view, in which the batteries are arranged longitudinally and laterally at predetermined intervals; and substrates each having the charge/discharge means provided along the batteries arranged in each line in one direction, wherein the substrates are each provided with the first and/or second charge/discharge probes corresponding to the batteries arranged in each line in the one direction.

Abstract: An electric working machine of one aspect of the present disclosure includes a connection port, a control circuit, and/or a power supply switch. The power supply switch is provided on a power supply path extending from a battery pack connected to the connection port to the control circuit. The power supply switch maintains an ON state while a power supply permission signal is output from the battery pack to the electric working machine. The control circuit outputs an ON-command signal to the power supply switch for a specified period of time in response to loss of the power supply permission signal from the battery pack.