The application concerns a battery module, comprising cells, two external terminals, a message communication infrastructure, a module control unit comprising a message processing unit, connected to the infrastructure to send and receive messages. According to the application, at least two of the message systems chosen from among: a first message system for cell characterization, a second message system for cell forming, and a third message system for utilization of a battery pack comprising several modules connected via their user terminals, when the pack is associated with a consumer machine for the purpose of supplying it with electric energy, are provided in the message processing unit, which is able to be configured into any one of the message systems.