ELECTRONIC DEVICE FOR CHARGING PLURALITY OF BATTERIES

Various embodiments of the present document relate to an electronic device for charging a plurality of batteries. The electronic device may comprise: a first battery; a second battery parallelly connected to the first battery, wherein the first battery and the second battery are branched at a first node; a charger for charging the first battery and the second battery by means of a current input from an external device; a voltage sensing circuit for sensing the voltage of the first battery and the voltage of the second battery while the first battery and the second battery are being charged; and a balancing circuit disposed between the first node and the first battery, and for controlling the connection between the first node and the first battery by means of PWM on the basis of sensing a differential between the voltage of the first battery and the voltage of the second battery. The present document may further include various other embodiments.