In light of the technological challenges in the current research trend of Wireless Power Transfer systems in today’s world, this paper puts forward innovative calculations, models, implementation and methods for optimising the coupling coil combining the state-of-the-art of the existing research. The results and analysis were done using MATLAB/SIMULINK. Wireless charging technology enables wireless power transfer from a power source (e.g., a charge) to a load (e.g., a mobile device) across an air gap. The technology provides convenience and a better user experience. Recently, wireless charging has been rapidly evolving from theories toward standards, and being adopted in commercial products, especially mobile phones and portable devices using wireless charging has many benefits. First, it improves user-friendliness as the hassle of connecting cable is removed. Different brands and models of devices can also use the same charger. Secondly, it eliminates the constant replacement or damage of the phone charging port. Thirdly, it enhances flexibility, especially for devices for which battery replacement or cable connection or charging is costly, hazardous or infeasible e.g. (body-implanted sensor) flouting wireless charging can provide on-demand power, avoiding an overcharging problem and minimising energy cost. The winder's power transfer system uses inductively coupled i.e. coupled magnetic fields to transfer electromagnetic energy from a charging base to a receiver in a portable device. This paper intends to achieve the wireless charging of mobile phones, optimise the efficiency of the charger, and simulate the circuit using MATLAB.