Mobile devices are the most popular kind of computational device in the world. These devices have more limited resources than personal computers, and more importantly, battery consumption is always an issue since mobile devices rely on their battery as energy supply. On the other hand, to date, many applications are developed using the object-oriented (OO) paradigm, which has some inherent features, such as object creation, that inherently consume energy in the context of mobile development. These features at the same time enable for maintainability, flexibility, among other software quality-related advantages. Moreover, known code refactorings driven by bad smells can be applied to mobile applications to produce good OO designs, at the expense of potentially consuming more energy. Then, this paper presents an analysis to evaluate the preliminary trade-off between OO design purity and battery consumption.Sociedad Argentina de Informática e Investigación Operativa (SADIO)