BATTERY LIFE ESTIMATION METHOD AND BATTERY SYSTEM

A battery system includes: a battery; a detection device to detect a voltage, a current, and a temperature from the battery; and a battery management system (BMS) to: estimate a state of charge (SOC) based on the voltage, the current, and the temperature detected from the detection device; store a profile generated by measuring a physical state of the battery in an event count format based on battery state data including the voltage, the current, and the temperature and the SOC; generate a virtual scenario for driving a representative battery based on the profile; and estimate a life of the battery through the virtual scenario.