Disclosed is a wireless charging device and a method facilitating wireless charging of one or more portable electronic devices. The wireless charging device may include a battery assembly comprising a receiving unit electrically coupled with the transmitting unit. A first set of charging coils within the receiving unit may wirelessly receive, via an electromagnetic induction, electrical energy from a second set of charging coils within an external power source. A third set of charging coils within the transmitting unit may wirelessly transmit, via an electromagnetic induction, the electrical energy received by the receiving unit to one or more portable electronic devices positioned within a predetermined transmission distance from the transmitting unit. A fourth set of charging coils within the one or more portable electronic devices may receive the electrical energy from the transmitting unit thereby facilitating charging of one or more batteries of the one or more portable electronic devices.