BATTERY MANAGEMENT SYSTEM, BATTERY MANAGEMENT METHOD, AND STORAGE MEDIUM

Abstract

A battery management system includes: a first processor that controls charging of a secondary battery; a voltage sensor that detects a voltage of the secondary battery; and a second processor that estimates an estimated range to which a battery level of the secondary battery belongs among multiple battery level ranges. Based on the detected voltage in a charging state among multiple charging states of the first processor, the second processor tentatively determines a tentative range to which the battery level belongs among the multiple battery level ranges. Based on comparison between the tentative range and a past estimated range estimated in a past, the second processor estimates a current estimated range that is the estimated range of this time.

CPC Classifications