A battery protection circuit comprising: cell terminals (B+, B-) electrically connected to a positive electrode and a negative electrode of a battery; external terminals (P+, P-) configured to be electrically connected to a positive electrode and a negative electrode of a charger or an electronic device; a sensing resistor provided in a high current path between the cell terminals and the external terminals sense a current flowing along the high current path; a discharge FET connected along the high current path between the cell terminals and the external terminals; a charge FET connected along the high current path between the cell terminals and the external terminals and connected to the discharge FET in series; a controller having a first terminal electrically connected to a control electrode of the discharge FET and a second terminal electrically connected to a control electrode of the charge FET, and configured to control operations of the charge FET and the discharge FET; a first resistor electrically connected between the control electrode of the discharge FET and the first terminal of the controller; a capacitor electrically connected between the control electrode of the discharge FET and a first terminal of the discharge FET; and a transistor electrically connected between the control electrode of the discharge FET and a second electrode of the discharge FET, wherein the charge FET has a first electrode as a drain electrode, a second electrode as a source electrode, and the control electrode as a gate electrode, and wherein the discharge FET has the first electrode as a drain electrode, a second electrode as a source electrode, and the control electrode as a gate electrode. wherein the first electrode of the charge FET is electrically connected to the first electrode of the discharge FET, the second electrode of the charge FET is electrically connected to an external terminal (P-) of the external terminals, and the control electrode of the charge FET is electrically connected to the second terminal of the controller, wherein the sensing resistor is electrically connected to the controller and the controller is configured to measure voltages at opposite ends of the cell terminals, thereby measuring the charge/discharge current of the battery, and wherein the controller is configured to control charging operations of the charge FET according to the measured charge current and voltage, and is configured to deactivate the charge FET by a control signal output through the second terminal during over-charging, thereby cutting off the high current path. cell terminals (B+, B-) electrically connected to a positive electrode and a negative electrode of a battery; external terminals (P+, P-) configured to be electrically connected to a positive electrode and a negative electrode of a charger or an electronic device; a sensing resistor provided in a high current path between the cell terminals and the external terminals sense a current flowing along the high current path; a discharge FET connected along the high current path between the cell terminals and the external terminals; a charge FET connected along the high current path between the cell terminals and the external terminals and connected to the discharge FET in series; a controller having a first terminal electrically connected to a control electrode of the discharge FET and a second terminal electrically connected to a control electrode of the charge FET, and configured to control operations of the charge FET and the discharge FET; a first resistor electrically connected between the control electrode of the discharge FET and the first terminal of the controller; a capacitor electrically connected between the control electrode of the discharge FET and a first terminal of the discharge FET; and a transistor electrically connected between the control electrode of the discharge FET and a second electrode of the discharge FET, wherein the charge FET has a first electrode as a drain electrode, a second electrode as a source electrode, and the control electrode as a gate electrode, and wherein the discharge FET has the first electrode as a drain electrode, a second electrode as a source electrode, and the control electrode as a gate electrode. wherein the first electrode of the charge FET is electrically connected to the first electrode of the discharge FET, the second electrode of the charge FET is electrically connected to an external terminal (P-) of the external terminals, and the control electrode of the charge FET is electrically connected to the second terminal of the controller, wherein the sensing resistor is electrically connected to the controller and the controller is configured to measure voltages at opposite ends of the cell terminals, thereby measuring the charge/discharge current of the battery, and wherein the controller is configured to control charging operations of the charge FET according to the measured charge current and voltage, and is configured to deactivate the charge FET by a control signal output through the second terminal during over-charging, thereby cutting off the high current path.