BATTERY DIAGNOSIS DEVICE AND METHOD THEREFOR

A battery diagnosis device according to an embodiment of this document includes a memory in which one or more instructions are stored and a processor configured to execute the one or more instructions, and the processor is configured to acquire an equivalent cycle of the battery based on the battery being discharged for a first designated duration and predict the life of the battery when the battery is operated in a designated mode based on at least one of a first discharge energy used until the battery degrades by a designated percentage, a second discharge energy usable by the battery for a second designated duration, the equivalent cycle, or any combination thereof.