The present disclosure provides a charging method, device, and system. The charging device includes a voltage regulation circuit, and can charge a charged device through voltage step-down or voltage step-up. In addition, the charging device and a charged device can transfer statuses of a circuit and a battery through a change of a switch status, so that the charging device can regulate a charging voltage and/or a charging current based on the statuses of the circuit and the battery.

To provide a power storage device control apparatus, a power storage device control system, and a power storage device control method that can increase the available power storage capacity (battery capacity) of a deteriorated power storage device such as a secondary battery without causing further deterioration of the power storage device. A battery control apparatus of an embodiment includes a controller. The controller lowers a lower limit voltage of discharge of a power storage device to a value in a range where a positive electrode potential of the power storage device is more than a first threshold or to a value in a range where a negative electrode potential of the power storage device is less than a second threshold, based on a deterioration state of the power storage device.

A monitoring system includes monitoring devices provided in a monitored device and monitoring the monitored device, and a controller that wirelessly communicates with the monitoring devices to acquire monitoring information of the monitored device from the monitoring devices. The monitored device is switchable between an operating state and a non-operating state. In the non-operating state of the monitored device, the monitoring devices establish communication connections in which at least one of the monitoring devices acts as a communication master and others of the monitoring devices act as communication slaves for the communication master. In the non-operating state of the monitored device, the controller does not act as a communication master for the monitoring devices.

An automobile charger, a charging method and a medium are provided. The charger includes a MCU, a switching power supply circuit, a first and second charging circuits, a battery voltage detection circuit, a charging current detection circuit, a constant-current driving control circuit, a constant-voltage driving control circuit and a switch driving control circuit. The charger is provided with the first and second charging circuits, which can realize three charging modes on the battery. The real-time voltage signal and the real-time current signal are collected with the battery voltage detection circuit and the charging current detection circuit, and through feedback of the real-time voltage signal and the real-time current signal, the MCU is configured to output PWM signals with different duty ratios to the constant-current driving control circuit and the constant-voltage driving control circuit, so as to realize output of different voltage values and current values of the switching power supply.

Provided are a charging circuit for a battery pack and a working system of a ship. The charging circuit includes a first switch circuit, a clamp gating circuit and a battery management circuit. The first switch circuit includes a first switch terminal, a second switch terminal and a switch control terminal. The clamp gating circuit includes a first clamp terminal, a second clamp terminal and at least one gating control terminal. The battery management circuit is configured to separately acquire charging voltages of multiple battery cells and a battery pack voltage between a first electrode and a second electrode in real time and control, according to the charging voltages and the battery pack voltage, a gating control signal supplied to each of the at least one gating control terminal and a switch control signal supplied to the switch control terminal.

A method and associated system for managing a battery cell includes determining, for a battery cell, a plurality of battery cell parameters; developing a plurality of on-vehicle reduced order linear data-driven battery models based upon the battery cell parameters, wherein each of the plurality of on-vehicle reduced order linear data-driven battery models determines corresponding model parameters; selecting one of the corresponding model parameters for one of the plurality of on-vehicle reduced order linear data-driven battery models based upon a previous state of charge for the battery cell; executing a derivative-free observer to determine a present state of charge (SOC) of the battery cell based upon the corresponding model parameters; and controlling the battery cell based upon the SOC.

A system and method for charging and discharging management of an energy storage device. The system includes an electrical signal collection circuit, a condition monitoring device, a processor, a gating mechanism, a control circuit, and a bidirectional switching power supply. The processor is configured to: in response to the energy storage device being in a charging state, determine a charging parameter based on a voltage signal and condition data of at least one battery core, send the charging parameter to the control circuit; in response to the energy storage device being in a discharging state, determine a discharging parameter based on the voltage signal of the at least one battery core, and the discharging load of at least one discharging port, send the discharging parameter to the control circuit, the discharging parameter including the target discharging battery core.

This application discloses a charging method and apparatus, an electronic device, and a computer-readable storage medium, where the method includes: charging a secondary battery; and under a condition that a battery voltage of the secondary battery reaches a first cutoff voltage, performing constant-voltage charging on the secondary battery, and terminating the constant-voltage charging when a charging current of the secondary current reaches a target current; where the target current is greater than a first current, and the first current refers to a current at which a capacity of the secondary battery reaches a fully charged state during constant-voltage charging. A positive electrode active material of the secondary battery includes LiMPO.sub.4, where M includes Mn and Fe elements.

A charging method and system, an electronic device, and a computer storage medium are disclosed. The system includes a first device and a second device. The first device includes a boost chip and a first battery. The second device includes a charge pump chip and a second battery. The first battery is configured to output a first voltage to the boost chip. The boost chip is configured to: receive the first voltage and output a second voltage to the second device, where the second voltage is greater than the first voltage. The charge pump chip is configured to: receive the second voltage and output a third voltage to the second battery, where the second voltage is M times the third voltage, and M is a positive number greater than 1. The second battery is configured to: receive the third voltage and perform charging.

A charging method and apparatus, a computer device, and a storage medium. The method includes: when a battery reaches an end-of-charge phase, acquiring a charging mode of the battery during the end-of-charge phase, where in the charging mode, a charging current of the battery changes dynamically; then determining an electrical parameter value required for charging the battery during the end-of-charge phase on the basis of the charging mode and status information of the battery; and finally, sending the electrical parameter value to a charging pile of the battery until a charging cut-off condition of the battery is reached.