BATTERY CONTROL SYSTEM AND BATTERY CONTROL METHOD

原文（中国語）

A battery control system includes a battery control unit that controls charging of a first battery and a second battery, and a charge amount monitoring unit that functions as a battery monitoring unit for monitoring charge amount of the first battery and the second battery. When a vehicle is carrying out a predetermined operation, the battery control unit charges the second battery so that the charge amount of the second battery does not exceed a first threshold value for suppressing battery deterioration, based on a monitoring result of the charge amount monitoring unit. When the vehicle ends the predetermined operation, the battery control unit carries out primary auxiliary charging for charging the second battery up to a second threshold value that is higher than the first threshold value.