A portable communication device, according to various embodiments of the present disclosure, may include: a battery pack; a power dissipation element disposed outside the battery pack; a detecting circuit configured to detect the state of the battery pack; and at least one of first switches that are connected to the battery pack and the detecting circuit, wherein the detecting circuit is configured to control at least one of the first switches to: electrically disconnect the power dissipation element from the battery pack when the state of the battery pack does not satisfy a specified condition; and electrically connect the power dissipation element to the battery pack when the state of the battery pack satisfies the specified condition.