In the modern world, we have often heard a word- wireless charging technology. Actually what is it all about? So this paper is giving you the whole package about wireless charging technology. Wireless charging is a technology through which power is transmitted through an air gap to the electrical devices for the motive of replenishment of energy. At present wireless charging techniques and development of commercial products have provided a promise to address the energy bottleneck of portable battery powered devices. The incorporation of wireless charging into existing wireless communication system brings a series of challenges like implementation, scheduling, and power management. The paper presents a detailed view on wireless charging techniques along with its need, invention, advantages, disadvantages and standards. It will also present working of one these technologies. It is a hectic task to carry the charger of mobile phones everywhere or any electronic gadget while travelling and it is very cruel when your mobile phone getting off by the time you urgently need it, so today’s world requires the complete technology so here is an overview of existing wireless charging techniques. The paper also discusses about the problems and challenges which takes place while implementing wireless charging technology. In addition it also envisions practical future of wireless charging technology.