A method and an electronic device for supplying power to a battery are provided. The electronic device includes a housing, a battery disposed inside the housing, and a power management circuit configured to control power supplied from an external power source to the battery. The power management circuit is configured to supply power from the external power source to the battery to apply a substantially constant current to the battery during a first time interval, supply power from the external power source to the battery to maintain a substantially constant voltage in the battery during a second time interval following the first time interval, sense a current value applied to the battery and a voltage value of the battery, and determine a duration of the first time interval based on at least part of the sensed current value and the sensed voltage value.