A battery pack, comprising: a casing ; a circuit disposed inside the casing ; a fuse disposed inside the casing and connected in series to the circuit , wherein an opening corresponding to the fuse is provided on the casing ; a switch disposed inside the casing , wherein the switch is connected in series with the circuit to control a connection/disconnection of the circuit ; and a cover body disposed corresponding to the opening , wherein the cover body is configured to have a first state in which the switch is switched on to connect the circuit when the cover body is capped at the opening and a second state in which the switch is switched off to disconnect the circuit when the cover body is detached from the opening , characterized in that , the switch comprises a stationary contact , a movable contact capable of contacting the stationary contact under a driving action from the cover body , and a reset member coupled to the movable contact such that the movable contact is moved by a reset deformation of the reset member between a first position in which the movable contact is connected to the stationary contact to switch on the switch and a second position in which the movable contact is separated from the stationary contact to switch off the switch ; the number of the reset member is two, two reset members are respectively disposed on two sides of the movable contact , and the two reset members are a first reset member and a second reset member , respectively; and the movable contact has a first surface and a second surface which are disposed opposite to each other, one end of the first reset member in a reset deformation direction thereof is disposed corresponding to the opening , and the other end is coupled to the first surface , and one end of the second reset member in the reset deformation direction thereof is coupled to the second surface . a casing ; a circuit disposed inside the casing ; a fuse disposed inside the casing and connected in series to the circuit , wherein an opening corresponding to the fuse is provided on the casing ; a switch disposed inside the casing , wherein the switch is connected in series with the circuit to control a connection/disconnection of the circuit ; and a cover body disposed corresponding to the opening , wherein the cover body is configured to have a first state in which the switch is switched on to connect the circuit when the cover body is capped at the opening and a second state in which the switch is switched off to disconnect the circuit when the cover body is detached from the opening , characterized in that , the switch comprises a stationary contact , a movable contact capable of contacting the stationary contact under a driving action from the cover body , and a reset member coupled to the movable contact such that the movable contact is moved by a reset deformation of the reset member between a first position in which the movable contact is connected to the stationary contact to switch on the switch and a second position in which the movable contact is separated from the stationary contact to switch off the switch ; the number of the reset member is two, two reset members are respectively disposed on two sides of the movable contact , and the two reset members are a first reset member and a second reset member , respectively; and the movable contact has a first surface and a second surface which are disposed opposite to each other, one end of the first reset member in a reset deformation direction thereof is disposed corresponding to the opening , and the other end is coupled to the first surface , and one end of the second reset member in the reset deformation direction thereof is coupled to the second surface . <EOS>