A charging stand includes a charging stand main body and a support baffle portion. The support baffle portion includes a first support baffle, a second support baffle and a third support baffle. The first support baffle is connected with the charging stand main body. The second support baffle is connected with the charging stand main body. The third support baffle is connected with the charging stand main body, the third support baffle is located between the first support baffle and the second support baffle, a first charging placement space is formed between the third support baffle and the first support baffle, and a second charging placement space is formed between the third support baffle and the second support baffle. A first spacing is formed between the third support baffle and the first support baffle, a second spacing is formed between the third support baffle and the second support baffle.

A battery pack includes a housing having a handle, rechargeable battery cells disposed within the housing, and a mating feature protruding away from the housing. The mating feature is configured to selectively connect the battery assembly with the receptacle of the charging rack and includes multiple ports electrically connected to the battery cells.

Implementations of an electronic power unit may include a heater disposed in a battery pack, the heater electrically coupled with a heater controller and with a battery controller; and an exterior case, the exterior case enclosing the heater and the battery pack, the exterior case including an end that accommodates the power input of a military vehicle, the end including a coaxial connector.

The present disclosure relates to a redundant power device, and an object of the present disclosure is to provide a redundant power topology that can ensure normal operation of a battery management system (BMS) by securing normal operating power of the BMS even when a disconnection occurs in a cable connecting a battery cell and the BMS or an abnormality or failure occurs in an uppermost battery cell. The present disclosure provides a configuration of switching a power supply cable to a processor so that power is supplied to the processor through a sub-cable when an abnormality occurs in a main cable.

A battery pack charger includes a housing, a first and a second battery pack receptacle for receiving a battery pack, a first and a second power supply, and a controller. The controller is electrically coupled to the first and the second power supplies to enable the controller to configure the first and the second power supplies to provide an amount of charging current. The battery pack charger includes a set of charging circuits electrically coupled to the first and second power supplies to receive the amount of charging current from the first and the second power supplies. The controller configured to direct all of or less than all of the amount of charging current from the first power supply to the first battery pack receptacle and all of or less than all of the amount of charging current from the second power supply to the first battery pack receptacle.

A method for determining a charging device that is being physically engaged with a vehicle in interest includes, after the charging device is physically engaged with the vehicle in interest, at least one primary candidate charging device is selected based on a current geographic location of the vehicle in interest and, from the at least one primary candidate charging device, a secondary candidate charging device that is possibly being engaged with the vehicle in interest is selected type by type according to screening conditions that vary with the type of the charging device, where the type of the charging device is determined based on an ability of the charging device in expressing that the charging device is in a status of being physically engaged but not activated to charge.

A battery pack includes a housing, a plurality of battery cells received within the housing, a positive power terminal, a negative power terminal, a data terminal, a network interface, a tag reader arranged within the housing and configured to detect identifying information for a piece of power equipment from a tag, and a battery management system The battery management system is configured to receive the identifying information from the tag reader, receive operational data for the piece of power equipment from the data terminal, package the identifying information and the operational data into packaged data, and send the packaged data to the network interface so that the network interface transmits the packaged data to a cloud-based network.

A stable control system for a three-phase rectification controller circuit is provided. The stable control system filters voltage harmonics and performs attenuation feedback compensation on current harmonics to enable a rectification circuit to achieve high stability and low THDi, while performing filtering on a direct current bus voltage in the case of an unbalanced load, so as to filter out voltage harmonics and enable the circuit to support the unbalanced load. A stable control system for an interleaved direct current booster circuit is also provided. The stable control system equalizes inter-leg currents such that a battery has good dynamic effects and good current equalization performance.

A charge-storage workstation system and method for controlling and monitoring several different battery chargers, for notifying a user of the charged status of several different batteries, for eliminating power consumption by inactive battery chargers, and for safe convenient storage of rechargeable-battery-powered tools. A frame, broad-set legs, narrow-set legs, top surface, and skirt support the tools and the other components. Electric power is supplied through an electric supply cord to a main GFCI outlet and to charger outlets. Various battery chargers are plugged into the charger outlets through sensors which sense current drawn by the battery chargers. A charge controller-monitor senses the current drawn by each battery charger through the corresponding sensor and reports the charged status of each battery as specified by the user.

Under user control, the charge controller-monitor can cut power to inactive battery chargers to reduce wasteful use of electric power.

An impedance measurement apparatus according to an embodiment of the present disclosure includes a plurality of sensors configured to detect response signals respectively corresponding to a plurality of battery cells and a controller configured to calculate impedances respectively corresponding to the plurality of battery cells based on the response signals, in which each of the plurality of sensors includes a power supply configured to supply input power to a corresponding battery cell of the plurality of battery cells and a detector configured to detect a response signal of the corresponding battery cell of the plurality of battery cells during a detection time, wherein the response signal is responsive to the input power, and the controller is further configured to adjust the detection time for the plurality of sensors.