This guideline describes approaches for the implementation of assistance systems for the range management of electric buses in public transport by means of a demonstrator system, which can ecologically and economically optimize the operation of electric buses and support the driving personnel. It will be discussed which preconditions are necessary and which assistance approaches can be supportive. The description and documentation of the demonstrator system serves as an example for application in a public transport setting or for transfer to other electromobility applications (e.g. logistics). This guideline is addressed to public transport companies and interested parties from science, research, and development.