Systems, methods and apparatus for wireless charging are disclosed. One method performed at a wireless charging device includes transmitting a first ping at a first power level through a power transmitting coil in the wireless charging device and, until a response is received from a chargeable device or until a ping with a maximum power level has been transmitted, determining whether a voltage measured at the power transmitting coil is modulated with the response and transmitting a next ping at an increased power level through the power transmitting coil in the wireless charging device when the response is not received. The method may include determining a charging configuration for transferring power to the chargeable device when the response is received.

An onboard charging system for an electric vehicle is configured to communicate with a power supply through exchange of control signals on a power supply line by modulating a charging current being supplied to the charging system. The charging system is capable of communicating fault and battery parameter data to the power supply, as well as a requested charging current used to regulate the power supply output. The power supply may convert high voltage AC power into a controllable DC output supplied directly to the electric vehicle, thereby providing a convenient means for the vehicle to initiate charging during operations. Connection between the electric vehicle and the power supply may be effected using an extendible and retractable electrical connection, such as a mechanical pantograph.

A HEMS 100 that controls a plurality of storage batteries 10 provided in a power consumer acquires information on type and/or deterioration level of each of the plurality of storage batteries. The HEMS 100 controls charge and discharge of each of the plurality of storage batteries 10 on the basis of the information on the type and/or the deterioration level of each of the plurality of storage batteries 10.

An electronic device includes a first control unit, a voltage conversion unit, a power supply unit, and a second control unit. The voltage conversion unit converts the voltage supplied from a power supply device into an output voltage, depending on a voltage of a battery. The power supply unit uses power supplied from the power supply device to charge the battery and supply power to the first control unit. The second control unit controls the power supply unit, to supply power to the first control unit via the voltage conversion unit, in a case where a duty of PWM control exceeds a predetermined threshold, and to supply power to the first control unit without passing through the voltage conversion unit, in a case where the duty of PWM control is less than the predetermined threshold.

This decision method: determines whether measurement data pertaining to a plurality of power storage elements included in a system is periodically stored in a storage device; when the measurement data is determined as stored, determines, on the basis of the acquired measurement data, whether each of the plurality of power storage elements reaches the end of life within a period corresponding to a standard use period at a prescribed temperature; and decides that a power storage element determined as reaching the end of life is required to be replaced.

A power supply unit for an aerosol generation device includes: a power supply configured to supply power to a heater configured to heat an aerosol source; a receptacle configured to receive power for charging the power supply from a plug connected to an external power supply; a charger configured to control charging of the power supply by power received by the receptacle; and a controller. The receptacle and the power supply are connected in parallel with the charger, and the charger is configured to supply power from the receptacle and the power supply to the controller via the charger.

An electrochemical cell having a positive electrode; a negative electrode and an electrolyte, wherein the electrochemical cell contains reversible ions in an amount sufficient to maintain a negative electrode potential verses reference level below a negative electrode damage threshold potential of the cell and a positive electrode potential verses reference level above a positive electrode damage threshold potential of the cell under an applied load at a near zero cell voltage state, such that the cell is capable of recharge from the near zero cell voltage state, and method for its production is disclosed.

An information processing terminal 100, which is used for after-sales service of an energy storage facility 10 that includes an energy storage unit U including a plurality of energy storage modules M, includes: a display unit 107; and a control unit 101, in which the control unit 101 acquires, from the energy storage facility, a temperature of each of the energy storage modules M after start of operation, the temperature being measured by a temperature sensor 37 provided in each of the energy storage modules M, and in which the control unit 101 displays a temperature distribution of the energy storage unit U on the display unit 107 by a color distribution of display colors of a plurality of blocks B depicting an arrangement of the plurality of energy storage modules M in the energy storage unit U.

A method for server-side characterization of a rechargeable battery (91-96) comprises obtaining operating values for a capacity of the battery (91-96) and an impedance (91-96) of the battery; based on the operating values: performing at least one state prediction (181-183) for the battery (91-96), each of the at least one state predictions (181-183) comprising a plurality of iterations (1099), wherein in each iteration (1099) a simulation of an electrical state of the battery (91-96) and a thermal state of the battery (91-96) is performed and an aging estimate for the capacity and the impedance is determined based on the results, wherein the aging estimate from a first iteration (1099) of the respective state prediction (181-183) is used for the simulation in a subsequent second iteration (1099) of the respective state prediction (181-183).

In one aspect, the present disclosure discloses a charging system including a battery pack and a charger. The battery pack includes a first battery pack terminal, a second battery pack terminal, and a third battery pack terminal. The second battery pack terminal is spaced apart from the first battery pack terminal in an intersecting direction. The intersecting direction intersects a removal direction of the battery pack from the charger. The charger includes a first charger terminal, a second charger terminal, and a third charger terminal. The second battery pack terminal is arranged so as to pass through an area spaced apart from the third charger terminal in a process of removing the battery pack from the charger.