A connector comprising: a mounting unit including a main body portion and electrically connectable to a battery management unit configured to manage voltages of a plurality of battery cells; a first clip terminal unit and a second clip terminal unit spaced apart from each other and arranged in a left and right direction, wherein the left and right direction is transverse to a rearward direction, the main body portion being connected to an end portion of each of the first clip terminal unit and the second clip terminal unit the first clip terminal unit and second clip terminal unit configured to be elastically deformable and to contact a counterpart connection terminal; and a terminal housing comprising a side wall configured to electrically insulate the first clip terminal unit and the second clip terminal unit from an outside, wherein each of the first clip terminal unit and the second clip terminal unit comprises: a connection portion having a part configured to contact the counterpart connection terminal when the counterpart connection terminal is inserted between the first clip terminal unit and the second clip terminal unit in the rearward direction from a front side towards a rear side of each the first clip terminal unit and the second clip terminal unit; a support portion extending from the connection portion and configured to be supported by the sidewall of the terminal housing, wherein the connection portion comprises a first extension structure bent and extending from a respective end of the main body portion in a direction in which the counterpart connection terminal is located when inserted so as to contact the counterpart connection terminal, a second extension structure bent and extending from the first extension structure in a direction in which the side wall of the terminal housing is located, characterized in that the support portion comprises a third extension structure bent in the rearward direction from an end portion of the second extension structure and extending in the rearward direction from the second extension structure so that at least a part of the support portion is in contact and supported by an inner surface of the side wall of the terminal housing. a mounting unit including a main body portion and electrically connectable to a battery management unit configured to manage voltages of a plurality of battery cells; a first clip terminal unit and a second clip terminal unit spaced apart from each other and arranged in a left and right direction, wherein the left and right direction is transverse to a rearward direction, the main body portion being connected to an end portion of each of the first clip terminal unit and the second clip terminal unit the first clip terminal unit and second clip terminal unit configured to be elastically deformable and to contact a counterpart connection terminal; and a terminal housing comprising a side wall configured to electrically insulate the first clip terminal unit and the second clip terminal unit from an outside, wherein each of the first clip terminal unit and the second clip terminal unit comprises: a connection portion having a part configured to contact the counterpart connection terminal when the counterpart connection terminal is inserted between the first clip terminal unit and the second clip terminal unit in the rearward direction from a front side towards a rear side of each the first clip terminal unit and the second clip terminal unit; a support portion extending from the connection portion and configured to be supported by the sidewall of the terminal housing, wherein the connection portion comprises a first extension structure bent and extending from a respective end of the main body portion in a direction in which the counterpart connection terminal is located when inserted so as to contact the counterpart connection terminal, a second extension structure bent and extending from the first extension structure in a direction in which the side wall of the terminal housing is located, characterized in that the support portion comprises a third extension structure bent in the rearward direction from an end portion of the second extension structure and extending in the rearward direction from the second extension structure so that at least a part of the support portion is in contact and supported by an inner surface of the side wall of the terminal housing. a connection portion having a part configured to contact the counterpart connection terminal when the counterpart connection terminal is inserted between the first clip terminal unit and the second clip terminal unit in the rearward direction from a front side towards a rear side of each the first clip terminal unit and the second clip terminal unit; a support portion extending from the connection portion and configured to be supported by the sidewall of the terminal housing, wherein the connection portion comprises a first extension structure bent and extending from a respective end of the main body portion in a direction in which the counterpart connection terminal is located when inserted so as to contact the counterpart connection terminal, a second extension structure bent and extending from the first extension structure in a direction in which the side wall of the terminal housing is located, characterized in that the support portion comprises a third extension structure bent in the rearward direction from an end portion of the second extension structure and extending in the rearward direction from the second extension structure so that at least a part of the support portion is in contact and supported by an inner surface of the side wall of the terminal housing.