A battery pack, comprising: a first battery contactor and a second battery contactor respectively having one end electrically connected to a positive electrode terminal (+) and a negative electrode terminal (-) of a battery; a first charging contactor and a second charging contactor respectively having one end electrically connected to the other end of the first battery contactor and the other end of the second battery contactor; characterized in that it further comprises a first measurement resistor, a second measurement resistor and a third measurement resistor electrically connected between a first node located at one end of the second charging contactor and a second node located at one end of the first charging contactor, between the first node and a third node located at the other end of the first charging contactor, and between the first node and a fourth node located at the other end of the second charging contactor, respectively; a first measurement contactor, a second measurement contactor and a third measurement contactor electrically connected between the first node and the first measurement resistor, between the first node and the second measurement resistor, and between the first node and the third measurement resistor, respectively; and a control unit configured to control an operation state of at least one of the first measurement contactor, the second measurement contactor and the third measurement contactor based on whether at least one of a charging start request signal and a charging end request signal is received, wherein when the charging start request signal is received, the control unit is configured to control the operation states of the first measurement contactor, the second measurement contactor and the third measurement contactor to turn on and then the control unit is configured to control the operation states of the first charging contactor and the second charging contactor to turn on. a first battery contactor and a second battery contactor respectively having one end electrically connected to a positive electrode terminal (+) and a negative electrode terminal (-) of a battery; a first charging contactor and a second charging contactor respectively having one end electrically connected to the other end of the first battery contactor and the other end of the second battery contactor; characterized in that it further comprises a first measurement resistor, a second measurement resistor and a third measurement resistor electrically connected between a first node located at one end of the second charging contactor and a second node located at one end of the first charging contactor, between the first node and a third node located at the other end of the first charging contactor, and between the first node and a fourth node located at the other end of the second charging contactor, respectively; a first measurement contactor, a second measurement contactor and a third measurement contactor electrically connected between the first node and the first measurement resistor, between the first node and the second measurement resistor, and between the first node and the third measurement resistor, respectively; and a control unit configured to control an operation state of at least one of the first measurement contactor, the second measurement contactor and the third measurement contactor based on whether at least one of a charging start request signal and a charging end request signal is received, wherein when the charging start request signal is received, the control unit is configured to control the operation states of the first measurement contactor, the second measurement contactor and the third measurement contactor to turn on and then the control unit is configured to control the operation states of the first charging contactor and the second charging contactor to turn on.