A battery monitoring device according to an embodiment monitors a state of a secondary battery block including parallel cell blocks connected in series each of which includes battery cells connected in parallel. A calculator calculates direct-current internal resistance values of the parallel cell blocks based on a differential current between first and second current values detected by a current detector, voltages of the parallel cell blocks corresponding to the first and second current values detected by a voltage detector. A determiner performs anomaly determination for the parallel cell blocks from the direct-current internal resistance values of the parallel cell blocks and a maximum value of the direct-current internal resistance values of the parallel cell blocks.

An electronic device is provided. The electronic device includes a battery, at least one coil, a wireless power transmission/reception circuit electrically coupled to the at least one coil, a charging circuit electrically coupled between the wireless power transmission/reception circuit and the battery, and a processor. The processor may be configured to detect an external electronic device capable of wireless power transmission by using the wireless power transmission/reception circuit), identify a magnitude of power to be received at the external electronic device, control the wireless power transmission/reception circuit to output a first control error packet (CEP) signal having a first power magnitude which is fixed, based on the magnitude of the power being less than a specified power magnitude, and control the wireless power transmission/reception circuit to output a second CEP signal having a variable power magnitude based on the first power magnitude and a second power magnitude, based on the magnitude of the power being equal to or greater than the specified power magnitude.

The present disclosure provides a charging method and a terminal. The method includes: automatically learning, by the terminal, historical data by using a machine learning algorithm, to establish a habit model of a user, and matching a current time with the usage habit model of the user to determine a current charging intention of the user, so as to determine a charging mode according to the charging intention. By means of the technical solutions, a charging requirement of a user can be effectively identified, and on-demand charging can be implemented. This improves user experience while avoiding a battery life decrease caused by frequent fast charging.

A charging device for charging a lithium-ion secondary battery based on at least a constant voltage method is provided. In the charging device, before starting charging with a constant voltage or while performing charging with a constant voltage, a first current pulse having a peak current value i.sub.1 larger than a charge current value i.sub.0 is applied at least once.

An apparatus is provided for charging a first storage battery and a second storage battery electrically connected together in series includes a first Kelvin connection, a second Kelvin connection and a third Kelvin connection coupled to the storage batteries. At least two of the Kelvin connections are configured to charge at least one of the first and second batteries. A charging source configured to selectively couple a charge signal to a storage battery through the Kelvin connections. A switching device selectively couples the charging source and measurement circuitry to at least two of the first, second and third Kelvin connections. A microprocessor selectively controls the switching device, charges the batteries, and measures a parameter of the batteries as a function of the charging signal applied to the batteries.

An apparatus is provided for charging a first storage battery and a second storage battery electrically connected together in series includes a first Kelvin connection, a second Kelvin connection and a third Kelvin connection coupled to the storage batteries. At least two of the Kelvin connections are configured to charge at least one of the first and second batteries. A charging source configured to selectively couple a charge signal to a storage battery through the Kelvin connections. A switching device selectively couples the charging source and measurement circuitry to at least two of the first, second and third Kelvin connections. A microprocessor selectively controls the switching device, charges the batteries, and measures a parameter of the batteries as a function of the charging signal applied to the batteries.

A charging system includes a charging station having input configured to receive a first type of electrical power, and a power converter connected to the input. The power converter is configured to convert the first type of electrical power from the input to a second type of electrical power different to the first type of electrical power, the second type of electrical power including DC electrical power. The charging station has outputs connected to the power converter, the outputs configured such that DC electrical power is providable to each of the outputs simultaneously. Each of the outputs is configured to connect to a respective electric vehicle for charging of the electric vehicle.

A charging system includes a charging station having input configured to receive a first type of electrical power, and a power converter connected to the input. The power converter is configured to convert the first type of electrical power from the input to a second type of electrical power different to the first type of electrical power, the second type of electrical power including DC electrical power. The charging station has outputs connected to the power converter, the outputs configured such that DC electrical power is providable to each of the outputs simultaneously. Each of the outputs is configured to connect to a respective electric vehicle for charging of the electric vehicle.

A power supply apparatus includes a power supply unit configured to wirelessly supply power to an electronic apparatus, a communication unit configured to transmit, to the electronic apparatus, information indicating whether to perform a foreign object detection process for detecting a foreign object, and a control unit configured to cause the communication unit to transmit the information to the electronic apparatus before outputting of predetermined power to the electronic apparatus.

The present disclosure provides a charging system and method and a power adapter. The system includes: a battery; a first rectification unit, configured to output a voltage with a first pulsating waveform; a switch unit, configured to modulate the voltage with the first pulsating waveform; a transformer, configured to output a voltage with a second pulsating waveform according to the modulated voltage; a second rectification unit, configured to rectify the voltage with the second pulsating waveform to output a voltage with a third pulsating waveform; and a control unit, configured to output the control signal to the switch unit to decrease a length of a valley of the voltage with the third pulsating waveform such that a peak value of a voltage of the battery is sampled.