A method of controlling state of charge (SOC) of a first battery and a second battery that are connected in parallel with each other, includes: calculating the SOC of the first battery and the SOC of the second battery; controlling output voltage command values of a first direct current (DC-DC) converter and a second DC-DC converter based on the SOC of the first battery and the SOC of the second battery, the first DC-DC converter and the second DC-DC converter being connected to ends of the first battery and the second battery, respectively; and controlling the SOC of the first battery and the SOC of the second battery based on the controlling of the output voltage command values of the first DC-DC converter and the second DC-DC converter.

Embodiments of the present disclosure provide a charging control method, a charging control device and a device to be charged. The method includes: in a charging process, performing K constant current charging stages on a battery in the device to be charged, where K is a positive integer greater than or equal to 1; in each constant current charging stage, performing constant current charging on the battery with a preset current corresponding to the constant current charging stage until the battery is charged to a preset voltage corresponding to the constant current charging stage, wherein the preset voltage corresponding to the Kth constant current charging stage is a charging cut-off voltage greater than a rated voltage of the battery; and when the voltage of the battery reaches the charging cut-off voltage in the Kth constant current charging stage, stopping charging the battery.

A battery charging management system includes a plurality of sockets combinable with a plurality of devices onto which a plurality of battery packs are mounted; a binding controller configured to receive state information of the plurality of battery packs from the plurality of devices, determine a priority of the plurality of devices to be allocated to the plurality of sockets according to a charging strategy selected based on the state information, and allocate one of the plurality of sockets to one of the plurality of devices or releasing the allocating; a charging controller configured to control charging of the plurality of battery packs of the plurality of devices electrically connected to a charging circuit based on the state information received by the binding controller; and a distributor configured to switch an electrical connection between the charging circuit and the plurality of battery packs.

A charge-discharge control circuit, method, device and a storage medium are provided. In some embodiments, the circuit includes: a starting power supply; and a main positive switch unit. In those embodiments, a first terminal of the main positive switch unit is connected to the starting power supply, and a second terminal of the main positive switch unit is connected to a generator of the vehicle and a load of the vehicle. The main positive switch unit is configured to interrupt a current in a first current direction, which is a current direction when the generator charges the starting power supply. The circuit also includes a battery management module configured to detect a voltage of the starting power supply, and control the main positive switch unit to interrupt the current in the first current direction when the voltage of the starting power supply reaches a preset voltage threshold.

An energy management system may include local unit(s) associated with energy storage devices. The local unit(s) may compare operating parameter values of the storage devices with a setpoint. The local unit(s) can generate an output signal representative of a comparison of the operating parameters values with the setpoint value. The system also may include a monitoring unit operably coupled with the local unit(s). The monitoring unit may receive the comparison from the local unit(s) and generate a time-varying, repeating signal that is based on the comparison. This signal has one or more characteristics indicative of the number of the energy storage devices having operating parameter values that are outside of the designated range.

A battery system includes: first and second battery modules connected between first and second system terminals in parallel; and a controller controlling the first and second battery modules. The first battery module includes a first battery and a first main switch, and a first balancing switch and a first balancing resistor, which are connected to the first main switch in parallel. The second battery module includes a second battery and a second main switch, and a second balancing switch and a second balancing resistor, which are connected to the second main switch in parallel. The controller is configured to detect a first battery voltage and a second battery voltage, and when an absolute value of a difference between the first and second battery voltages is greater than a first reference value, to open the first and second main switches and to close the first and second balancing switches.

A power system provides power from a power source to a load via a distribution bus, and includes a DC-DC converter coupled in parallel with a network of switching elements coupled between an output terminal of the power source and the distribution bus. A controller is configured to selectively activate or deactivate the DC-DC converter and each of the switching elements to enable the power source to power the load via the distribution bus. The switching elements may be transistors, and the diodes may be parasitic body diodes of the transistors. The power source may be a battery, such as a rechargeable battery. An output voltage level from the battery may be regulated by the controller as a function of operation of the DC-DC converter and a number of the activated or deactivated transistors.

A power regulation apparatus includes a first switch and a switch control signal generation unit including a first transconductance unit including a first input terminal for receiving a first voltage from a first terminal of the first switch, a second input terminal for receiving a second voltage from a second terminal of the first switch, and an output terminal for being connected to a first node, a node voltage generation unit connected to the first node and configured to generate a node voltage signal at the first node, and a second transconductance unit including a first input terminal for receiving a current characterization signal characterizing a current flowing through the first switch, a second input terminal for being connected to the first node so as to receive the node voltage signal, and an output terminal for being connected to a control terminal of the first switch.

A control device includes a communication circuit configured to acquire battery voltage information of a battery of an electronic device, and a control circuit configured to control, based on the battery voltage information, a charging voltage supply circuit that supplies a charging voltage to the electronic device at a contact point such that a voltage difference between the charging voltage and a battery voltage of the battery is a given set voltage.

Battery management techniques for a vehicle include a set of sensors configured to measure a set of parameters of a battery of the vehicle and a controller configured to control recharging of the battery to a first target state of charge (SOC) corresponding to optimized battery life when a mileage of the vehicle is less than a threshold mileage corresponding to an expected transport period of the vehicle, wherein controlling the recharging of the battery to the first target SOC prevents battery malfunctions and thereby reduces vehicle warranty costs for an original equipment manufacturer (OEM) of the vehicle, and control recharging of the battery to a second target SOC determined by a cost-based optimization technique when the mileage of the vehicle reaches the threshold mileage.