Abstract :

In this era of Smartphones, when these have become the backbone of our life, charging them is one of the most essential tasks of our day to day life. For charging them, we are still dependent upon the conventional method of using wired charger. Sometimes we are in immense need of charging our phones but we don't have our charger or we don't find the power source. In that case, we use our power-banks but we all know that they are not handy. They are like a burden, which we have to carry everywhere. But what if we can share charge among phones just like we share files. In this review, Bidirectional dc to dc converters will be used to transfer power in both directions. Bluetooth will be used to trigger the circuit and for the connection of phones. So, if both mobiles have built in transmitter and receiver, they can easily share charge between them. This is very helpful to transfer the charge from one mobile to another in case of urgency and difficult situations.