The automotive industry is investing more and more resources in the production of Electric vehicles (EV’s) for many different reasons: the main one is the reduction of pollution caused by fossil fuels. Thanks to economic incentives promoted by governments and the improvement of the technologies used in these vehicles, EV’s are becoming worldwide diffused. According to this, the aim of the Retrofit Kit projects is to develop a kit that allows to convert a gasoline or diesel-powered vehicle into electric powered one. This has many advantages, as the fact that owners can extend the life of their existing vehicles, converting them into electrical ones and reducing the environmental impact of the production of the new ones.