BATTERY COMMUNICATION SYSTEM AND OPERATION METHOD THEREOF

A battery communication system and an operation method thereof are provided. The battery communication system is used to communicate with a plurality of 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 sends a transmission signal to a second wireless communication unit adjacent thereto via a wireless communication or a coupling wave; and in the wireless daisy-chain communication path of the battery communication system, the first wireless communication unit and the second wireless communication unit operate an auto-gain control (AGC) to enable the second wireless communication unit to automatically adjust its receiving gain, or an auto-power control (APC) to automatically adjust an output power of the first wireless communication unit.