Emergence of rapid industrialization with recent development in technology has led to increasing trend of fossil fuel consumption that has been a major cause of global warming and climate change and has become a severe threat to global health. The global transportation sector contributing to a huge percentage of CO2 emission, thus require some sustainable and effective fuel alternatives. Electric Vehicles (EVs) serve to minimize reliance on fossil fuels in the process of driving but still depend on these fuels indirectly in the EV charging process from the conventional grid. Thus, they cannot be considered greener completely unless they are charged from Renewable Energy Sources (RES). This study presents the state-of-art overview, status of EV charging technologies and comparison between various EV charging facilities. The paper reviews the role of EV portable chargers to reduce dependence on electricity grid and help to cope with technical challenges related to EV including driving-range anxiety, long charging time and lack of charging facilities. The study focuses on the status of latest research and development in the field of EV portable chargers throughout the world and comparative analysis between four commercially available EV portable chargers is performed to introduce a scope for improvement and development of efficient, reliable, eco-friendly and user convenient EV portable chargers.