This presentation gives an overview regarding the use cases and application areas for batteries in deep-sea shipping. While it is evident that a fully battery-powered, zero-emission application is not available, battery usage may also be enhanced by the rise of alternative fuels, depending on needs based on changing design and sizing choices. Maritime Battery Forum (MBF) and the International Council on Combustion Engines (CIMAC) have published a joint white paper the objective of which was to provide relevant stakeholders in the maritime industry and other interested parties with an overview of the available options, while also outlining the boundaries of what is feasible.