BATTERY REMAINING CHARGING TIME ESTIMATION METHOD AND APPARATUS, AND BATTERY MANAGEMENT SYSTEM

This application provides a method and a device for estimating a remaining charging time of a battery, and a battery management system. The method includes: determining a minimum charging time of each type of battery cell at a K charging phase based on a charge request current value of each type of battery cell at the K charging phase; and determining the remaining charging time of the battery when the K charging phase of any type of battery cell in the battery is a target state-of-charge phase, where the remaining charging time of the battery is a smallest one of accumulation values, each accumulation value being an accumulation of minimum charging times of a type of battery cell in the battery at all charging phases. In this way, the remaining charging time of a battery containing different types of battery cells can be estimated. In this application, the estimation is performed in phases, and impact exerted by a temperature change on the calculation of the remaining charging time is also considered, thereby further improving accuracy of the estimation of the remaining charging time of the battery containing different types of battery cells.