1. The unique name of Bluetooth ensures the accurate connection and management of the corresponding lithium battery pack; 2. The user can query and manage the battery information immediately. The user can query each string of battery related status and replace or maintain the abnormal battery; 3. Set and read the battery protection parameters. The user sets the parameters and needs to enter the password to modify the parameters; Monitor the battery fault alarm, show the current battery fault and the number of faults;