Battery pack and method for controlling charge of battery pack

A battery pack comprising:

• a battery cell comprising at least one unit cell;
• a first connector which is electrically connected to the battery cell;
• a second connector which is electrically connected to the battery cell and the first connector, the second connector having a corresponding shape to the first connector to be coupled with the first connector;
• and
• a controller to selectively block an electrical connection of the first connector and the second connector or an electrical connection of the first connector and the battery cell based on a charge status of the battery cell,
• wherein the controller blocks an electrical connection of the first connector and the battery cell when a state of charge (SOC) or a voltage value of the battery cell is higher than or equal to a predetermined reference value, and blocks an electrical connection of the first connector and the second connector when the SOC or voltage value of the battery cell is less than the predetermined reference value.