A battery pack includes a housing, a plurality of rechargeable battery cells, a connection interface, a near-field communication (NFC) reader, a battery management system, and a communication gateway. The connection interface is in communication includes a plurality of data pins, a positive terminal, and a negative terminal. The battery management system is in communication with the NFC reader and is configured to receive information from the NFC reader including an NFC tag identification, then retrieve stored parameters corresponding to the NFC tag identification, and configure at least one of the plurality of data pins based upon the stored parameters corresponding to the NFC tag identification.

An electronic device is provided. The electronic device includes a charging circuit, a battery, and a processor operatively connected to the charging circuit and the battery, wherein the processor is configured to charge the battery with a first voltage corresponding to a first charging level, identify the number of times that supplementary charging is performed after the electronic device is detected to be in a fully-charged state, when the number of times that the supplementary charging is performed exceeds a specified number of times, configure a charging level for charging the battery to a second charging level configured to be lower than the first voltage of the first charging level, and adjust a voltage received from a power transmission device through the charging circuit to a second voltage corresponding to the second charging level and charge the battery with the adjusted second voltage.

A method for estimating the state of health of an exchangeable rechargeable battery. The method includes: i. determining a remaining capacity of the battery during a charging operation, in such a manner, that a first charging value is ascertained by measuring an open-circuit voltage, as long as no charging current or only a minimal charging current is flowing; at least one further charging value is ascertained by measuring the charging current in specific time intervals, until the charging operation is completed; and a sum of the ascertained charging values is calculated; ii. determining a remaining performance of the battery during the charging operation in such a manner, that after a predefined battery voltage is reached, the charging current is briefly changed, and the respective battery voltage is measured; and an impedance of the battery is calculated from the quotient of the difference of the measured charging currents and battery voltages.

A method of estimating a charging time of a battery, includes: estimating an SOC of the battery by measuring at least one parameter of the battery; estimating an internal resistance of the battery based on the at least one parameter of the battery, the SOC of the battery, and SOC-OCV data; estimating a time length of a constant current (CC) charging section based on the SOC, the internal resistance, and the at least one parameter of the battery; and estimating a time length of a constant voltage (CV) charging section based on the SOC, the internal resistance, and the at least one parameter of the battery. The estimating of the time length of the CV charging section includes: estimating a charging current of the battery in a unit of an SOC step; and calculating the time length of the CV charging section in the unit of the SOC step.

Methods, apparatus, systems and articles of manufacture are described for a wireless battery system. An example apparatus includes at least one memory, instructions, and processor circuitry to at least one of instantiate or execute the instructions to identify a first battery node to transmit an uplink command during a first superframe interval, transmit a downlink command to the first battery node and a second battery node, the first battery node to switch in the first superframe interval from a receive state to a transmit state in response to the downlink command, the first battery node to transmit the uplink command in the transmit state, and receive the uplink command from the first battery node in the first superframe interval.

A power supply unit (PSU) configured to provide electrical power to an electronic device. The PSU may include a PSU control circuit configured to, via a power meter, detect that electrical power conveyed to the electronic device is above a timer starting threshold. In a first charging mode with a first predetermined charging duration, the PSU control circuit may control the PSU to convey electrical power to the electronic device with a first power ceiling. Subsequently to the first predetermined charging duration elapsing, in a second charging mode with a second predetermined charging duration, the PSU control circuit may control the PSU to convey electrical power to the electronic device with a second power ceiling that is lower than the first power ceiling. Subsequently to the second predetermined charging duration elapsing, the PSU control circuit may control the PSU to return to the first charging mode.

A degradation-determination system includes a volume change detecting unit configured to detect a volume change of a lithium-ion battery, a capacity change detecting unit configured to detect a capacity change of the lithium-ion battery, and a charge control unit configured to control charge of the lithium-ion battery. The charge control unit is configured to determine that the lithium-ion battery is in a state of degradation, upon occurrence of a condition in which volume expansion of the lithium-ion battery is detected by the volume change detecting unit, in conjunction with a condition in which a decrease in a capacity of the lithium-ion battery is not detected by the capacity change detecting unit.

A vehicle communication, power, and guidance system for use in guiding and communicating with a land vehicle along a roadway, the system comprising: one or more reference devices positioned along the roadway, each of the reference devices further comprising: a memory device for storing fixed values for one or more vehicle and traffic related parameters; and one or more transmission modules for transmitting said fixed values for one or more vehicle and traffic related parameters; a vehicle mounted device comprising: a receiving module for receiving transmitted signals from the transmission module of said reference devices; and a processing module for processing the received signals and a transmitter module to transmitting signals to the reference device to communicate with one or more controllers of the vehicle to guide and control movement of the vehicle along the roadway.

A battery pack charger including a housing, a charging circuit, a first charger terminal and a second charger terminal connected to the charging circuit and configured for providing charging power to a battery pack, and a controller. The controller includes a processor and a memory. The controller is configured to charge the battery pack with a constant power charge, switch to a constant voltage charge when a voltage of the battery pack reaches a predetermined threshold, and charge the battery pack with the constant voltage charge.

For a programmable direct current (DC)-DC converter application, a driver system includes a switched mode power circuit for providing a DC power signal to an electrical load and a control block. Control block includes interfaces coupled to receive at least one real-time input signal from a low voltage region of the switched mode power circuit and to provide at least one control signal to the low voltage region. Control block configures the switched mode power circuit to provide the DC power signal having at least one power parameter within a tolerance of a power configuration setting value of the electrical load. Control block responds to the at least one real-time input signal from the low voltage region to adjust operation of the low voltage region via the at least one control signal. Low voltage region can include a plurality of switched converter circuits.