BATTERY COMMUNICATION SYSTEM AND OPERATION METHOD THEREOF

A battery communication system and an operation method thereof are provided, wherein the battery communication system is employed to communicate with several battery units. The operation method of the battery communication system includes the following steps: in a wireless daisy chain communication path of the battery communication system, a first wireless communication unit sending a transmission signal to a second wireless communication unit adjacent thereto through an electrical/magnetic coupling wave or a wireless signal transmission; and, in the wireless daisy chain communication path of the battery communication system, the first wireless communication unit and the second wireless communication unit operating an auto-gain control (AGC) to automatically adjust a receiving gain of the second wireless communication unit.