ESTIMATION SYSTEM FOR REMANUFACTURING BATTERY SYSTEM FOR ELECTRIC VEHICLE AND OPERATION METHOD OF THE SAME

Disclosed is an evaluation system for remanufacturing of a battery system, the evaluation system including a charger/discharger connected to the battery system and used to charge and discharge the battery system; and an electronic device connected to the charger/discharger, receiving data about the battery system from the charger/discharger, and evaluating a remaining lifespan of the battery system based on the received data, wherein the electronic device selects at least one of a regular method and a simple method based on an input of a user, and evaluates a remaining lifespan of the battery system according to the at least one method selected above.