Improving wireless charging energy efficiency of mobile phones: Analysis of key practices

As human beings became dependent on mobile phones, the relationship of these devices with the natural environment became more significant to study. Mobile phones require energy to operate and this is stored within connected batteries. Recently, there has been a shift in the way batteries of mobile phones are charged, namely, from wired to wireless charging. Being regarded as a transformational technology in the mobile world, many smartphone manufacturers have been investing in this technology. However, current wireless charging mechanisms meant for mobile phones are recognized to be slow and energy inefficient as compared to wired charging. Such inefficiency can in turn worsen the adverse impacts that mobile phones already have on the environment. This paper addresses the energy inefficiency issue during wireless charging of mobile phones by comparing different charging practices in order to identify opportunities for energy savings.