An electric vehicle with magnetic induction power generating device includes an vehicle body, at least one battery pack installed inside the vehicle body, at least one power generation device electrically coupled to the at least one battery pack for providing electricity, a transmission device placed between the battery pack and the power generating device, and at least one motor for driving the electric vehicle, wherein the at least one power generating device can be coupled to at least one free-running wheel of the vehicle for converting a rotating energy of the at least one free-running wheel into electricity.

A method includes turning on a first group of switches of a switched capacitor converter in a battery charging system to establish a first conductive path, and configuring a system voltage at a system bus to charge a first flying capacitor to a predetermined voltage level through the first conductive path, wherein the predetermined voltage level is less than the system voltage, and turning on a second group of switches of the switched capacitor converter in the battery charging system to establish a second conductive path to charge a battery, wherein a sum of a voltage across the first flying capacitor and the system voltage is applied to the battery.

Provided is a power supply system configured to supply AC power to a building. The power supply system includes a discharge assembly which is connectable to a discharge port provided in a vehicle. The discharge assembly includes a first end which receives electric power from the discharge port connected thereto, and a second end which outputs AC power. The second end of the discharge assembly is connected to the building by a single-phase three-line wiring.

The present disclosure provides a battery detection device. The detection circuit is disposed on the battery and produces an impedance value variation quantity according to a deformation of the battery. The detection circuit includes four connection nodes. The first connection node and the third connection node are connected with the battery. A voltage variation quantity is produced between the second connection node and the fourth connection node according to the impedance value variation quantity. The protection circuit is connected with the second connection node and the fourth connection node. The protection circuit is in an ON state when the voltage variation quantity is greater than or equal to a cut-off voltage. The protection circuit is in an OFF state when the voltage variation quantity is less than the cut-off voltage, so that an operation state of the battery is changed accordingly.

Automatically updating a full charge capacity (FCC) of a battery of an information handling system, the method including: determining that the SOC of the battery is less than the SOC threshold; determining that the time since the previous update of the FCC of the battery is greater than the time threshold; identifying configuration parameters for an update of the FCC of the battery; comparing the configuration parameters with current conditions of the battery; based on comparing the configuration parameters with current conditions of the battery, determining that the current conditions of the battery are within bounds of the configuration parameters; and in response to determining that the current conditions of the battery are within the bounds of the configuration parameters, updating the FCC of the battery.

The present disclosure provides a battery protection circuit board and a preparation method thereof. The battery protection circuit board includes a first battery protection board and a second battery protection board, a hardness of the first battery protection board being greater than a hardness of the second battery protection board. The soldering method includes: preparing a first to-be-soldered region of the first battery protection board and preparing a second to-be-soldered region of the second battery protection board; preparing a first copper paste in the first to-be-soldered region of the first battery protection board and preparing a second copper paste in the second to-be-soldered region of the second battery protection board; and bonding the first to-be-soldered region of the first battery protection board and the second to-be-soldered region of the second battery protection board by the first copper paste and the second copper paste.

A power regulation unit is provided for regulating power to or from a power tool battery pack. The power regulation unit includes power regulation circuitry and a controller. The power regulation circuitry is configured to regulate a received power. The controller is connected to the power regulation circuitry. The controller is configured to receive input power from one or more battery cells, regulate the input power by performing at least one of a voltage regulation and a current regulation, and output a regulated output power. For voltage regulation, the regulated output power includes a constant voltage regardless of an operating current of the power tool. For current regulation, the regulated output power includes a constant voltage up to a predetermined current threshold.

The present disclosure provides a battery protection device and a chip therein. The chip includes a buffer circuit and a switch circuit. The buffer circuit is configured to generate a gate control signal according to a first logic control signal, a first voltage, a second voltage, and a third voltage. The switch circuit is configured to transmit the second or the third voltage to the buffer circuit. The switch circuit includes an invert circuit and a select circuit. The invert circuit is configured to invert a second logic control signal to a third logic control signal. The select circuit is configured to select the second or third voltage to transmit the same to the buffer circuit according to the second logic control signal and the third logic control signal. The gate control signal is configured to turn off a power transistor when an overcharging or an over-discharging occurs.

Systems and methods for communicating information related to a wearable device are disclosed. Exemplary information includes audio information.

A power distribution system includes a plurality of power distribution modules connected to at least one power supply and configured to receive power therefrom. A power distribution bus connects the power distribution modules of the plurality of power distribution modules in parallel. The plurality of power distribution modules executes a distributed system policy management protocol over the power distribution bus to control a supply of available power from the at least one power supply to loads connected to USB charging ports of the power distribution modules.