The embodiments of the present application provide a method for charging a battery, a battery management system, and a charge and discharge device. The method for charging the battery includes: acquiring, by a BMS, a first charge current and sending it to a charge and discharge device, thus making the charge and discharge device charge the battery based on the first charge current; if a first accumulated charge quantity of the battery is greater than or equal to a first accumulated charge quantity threshold value, acquiring, by the BMS, a first discharge current and sending it to the charge and discharge device, thus making the charge and discharge device control the battery to discharge based on the first discharge current; and if a first accumulated discharge quantity of the battery is greater than or equal to a first accumulated discharge quantity threshold value.

A system includes a first charger connected to one of an aircraft, a watercraft, and a vehicle having at least one vehicle battery, a second charger connected to an on board battery pack, and at least one programmable logic controller (PLC) to: manage communication between the at least one vehicle battery and the first charger to ensure that the at least one vehicle battery reaches a preset state of charge (SOC), manage communication between the on board battery pack and the second charger to ensure that the on board battery pack reaches the preset SOC, and manage transfer of energy from the on board battery pack to the at least one vehicle battery.

An accessory is attachable to and detachable from an electronic device, the accessory has at least one first battery that is charged with electric power supplied from an external power supply to the electronic device and a first processor that performs control to charge the first battery, the electronic device includes: a second battery that is charged with the electric power supplied from the external power supply; and a second processor that performs control to charge the first battery and the second battery, and the second processor has a communication part to communicate with the first processor.

An electronic device according to an embodiment may include: a battery; a connector including multiple pins; and at least one processor, and wherein the at least one processor is configured to: identify an external electronic device electrically connected through the connector, identify, among at least two supportable current values, a current value of power to be supplied to the external electronic device, and supply power of the battery to the external electronic device through the connector based on the identified current value.

Decentralized development and deployment of applications is described. An application may be defined as being composed of multiple code libraries, each independently developed and deployed. Packagers of individual code libraries may deploy various versions of respective code libraries in multiple code cells and may further define cell selection criteria for the libraries. An application manifest may be constructed identifying the component code libraries with optional version selection criteria for the libraries. Upon receiving a request for the application for a particular client, a refined manifest for the application may be generated for that client, the refined manifest including identifiers of particular cells for the respective component code libraries. The application may then be generated according to the refined manifest and provided to the client. Subsequent requests for the application for the same client may be serviced according to the refined manifest.

A battery pack charger including a housing, a battery pack receptacle supported by the housing and configured to receive a battery pack, a charging circuit configured to transmit power from a power input circuit to the battery pack receptacle, and a controller. The controller is operable to receive a first input via a user interface, set a first power output level of the charging circuit based on the received first input, and provide the first power output level to the battery pack coupled to the battery pack receptacle.

Disclosed herein are methods and systems for controlling an active rectifier of a wireless power receiver. The exemplary methods can include determining a reference value of a current into the rectifier, the reference value being based on a load requirement; determining a required value change in a present input current into the rectifier based on the reference value; transmitting, to a wireless power transmitter, a signal representative of the required value change in the present input current; determining a new value of the present input current after transmitting the signal; and, when the new value is within a predetermined range of the required value change, driving at least one transistor in the rectifier with a PWM signal based on the new value.

Systems and methods are disclosed herein for a charging system. The charging system may be implemented within an independent charging station or within an autonomous vehicle. Boolean charging can be used to obtain the desired charge or discharge voltage for charging an autonomous vehicle at a charging station. By combining a subset of a sequence of batteries arrays that differ in voltage by powers of two in series, where each battery array may include multiple batteries or battery cells, a voltage may be obtained which is equal to the sum of the voltages across each battery array. This voltage may be used in turn to charge additional batteries or battery arrays. The process may be repeated until the desired amount of battery arrays has been charged and the desired voltage has been achieved.

A battery pack in one aspect of the present disclosure includes a communication terminal and a detector, and supplies electric power to an external device. The communication terminal receives a first signal, a second signal, and a third signal. The first signal has a first potential, the second signal has a second potential, and the third signal has a third potential. The first potential, the second potential, and the third potential are different from one another. The detector determines a potential at the communication terminal, to thereby detect the first signal, the second signal, or the third signal in accordance with the determined potential.

A management apparatus that controls charging and discharging between an electric power system and a secondary battery which is mounted on a vehicle and which stores electric power used for traveling of the vehicle includes: an acquisition part that acquires at least one of registration information indicating a use acceptance of the electric power and information indicating a use application of the electric power; and a management part that controls a supply of the electric power from the secondary battery to the electric power system in accordance with the presence or absence of the registration information or the use application of the electric power.