BATTERY CHARGING METHOD, CONTROLLER, BATTERY MANAGEMENT SYSTEM, BATTERY, AND ELECTRIC DEVICE

This application relates to the battery field, and discloses a battery charging method, a controller, a battery management system, a battery, and an electric device. The battery charging method includes: obtaining an electrical parameter of a battery; determining whether the electrical parameter of the battery reaches a preset threshold, where a value range of the preset threshold meets the following condition: a battery state of charge (SOC) corresponding to the preset threshold is 70% to 80%; suspending, when the electrical parameter of the battery reaches the preset threshold, charging of the battery and discharging the battery for a duration of t; and continuing to charge the battery when the discharge is completed. In the embodiments of this application, the preset threshold of the electrical parameter is set.