Provided is a method of charging a deeply discharged battery using a battery charging device, the method including measuring the output voltage of the deeply discharged battery using the battery charging device, and if the output voltage is at or near zero (0) volts, charging the deeply discharged battery using the battery charging device in a forced mode.

Provided is a method of charging a deeply discharged battery using a battery charging device, the method including measuring the output voltage of the deeply discharged battery using the battery charging device, and if the output voltage is at or near zero (0) volts, charging the deeply discharged battery using the battery charging device in a forced mode.

Controlling a battery state of charge using machine learning is provided. A system of an electric vehicle identifies data including a state of charge of a battery of the electric vehicle, a state of health of the battery of the electric vehicle, and a drive mode of the electric vehicle. The system establishes, based on input of the data into a local model configured on the electric vehicle and trained with machine learning, a schedule to control charging of the battery of the electric vehicle. The system executes, responsive to a power source electrically coupled to the battery of the electric vehicle, the schedule to control an amount of current supplied from the power source to the battery of the electric vehicle.

This application relates to a charging method. In one example, a first terminal device includes a battery, a first switched-capacitor circuit, and a wired charging interface. The first switched-capacitor circuit is electrically connected between the battery and the wired charging interface. The wired charging interface is connected to a second terminal device through an on-the-go (OTG) data cable. The method includes: in response to a user selecting a reverse charging mode of the first terminal device, determining that the first terminal device is a primary device that is in an OTG connection and that is configured to provide electric energy; and controlling the first switched-capacitor circuit to increase a first output voltage of the battery to a second output voltage and output the second output voltage to the wired charging interface, to transmit the second output voltage to the second terminal device through the OTG data cable.

This application relates to a charging method. In one example, a first terminal device includes a battery, a first switched-capacitor circuit, and a wired charging interface. The first switched-capacitor circuit is electrically connected between the battery and the wired charging interface. The wired charging interface is connected to a second terminal device through an on-the-go (OTG) data cable. The method includes: in response to a user selecting a reverse charging mode of the first terminal device, determining that the first terminal device is a primary device that is in an OTG connection and that is configured to provide electric energy; and controlling the first switched-capacitor circuit to increase a first output voltage of the battery to a second output voltage and output the second output voltage to the wired charging interface, to transmit the second output voltage to the second terminal device through the OTG data cable.

Provided is a control circuit suitable for power supplies with freely switchable voltages, comprising a first control circuit for freely switching the power supply voltage, a second and a third control circuits electrically connected to the first control circuit. It enables the power supply voltage to be switchably outputted at different voltage levels and realizes the conversion and protection functions of battery voltage. In other words, the present solution can meet the voltage requirements of different devices. Through precise battery management, it ensures that the battery operates safely and efficiently, thereby extending the battery's service life. In terms of user-friendliness: it provides a simple and easy-to-use voltage switching mechanism, enabling users to effortlessly select the required voltage output according to their needs. By adopting rechargeable lithium batteries to replace traditional dry batteries, it reduces the environmental pollution caused by discarded batteries while achieving energy conservation and reuse.

Self-balancing groups are introduced as a feature of managed charging of electric vehicles in order to avoid overloading of elements of the transmission grid, such as transformers, by use of a load forecast signal. In a self-balancing managed charge system, each vehicle is assigned to a vehicle group, which abstractly represents a cluster of vehicles supported by shared utility resources, such as a transformer or set of transformers. As each vehicle in a group plugs in for charging, the self-balancing managed charge system forecasts an expected load curve for the power that the groups of vehicles will draw. This forecast is then summed for all the vehicles in the group, and becomes a signal for the next vehicle to determine the charging as subsequent members of the group plug in.

A battery pack charger having housing including a battery pack interface for removably receiving a battery pack and a power input. The battery pack charger including a hybrid flyback converter having a primary side including a DC-DC half-bridge and a secondary side including a synchronous rectifier. The hybrid flyback converter is electrically connected between the power input and the battery pack interface and is configured to provide charging power from the power input to the battery pack interface.