An electrically-driven working apparatus comprising: a main body; a battery pack configured to be either detachably attached to the main body to supply electric power to the main body or detachably attached to a charger; a battery provided to the battery pack; an abnormality detection unit configured to detect either an overload or an over discharge of the battery; a power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba) configured to be connected to the battery; a first disconnection unit and a second disconnection unit, each of the first disconnection unit and the second disconnection unit being provided in the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba) to be operable to disconnect the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba), the first disconnection unit being provided to the main body, and the second disconnection unit being provided to the battery pack; and a control unit configured to activate the first disconnection unit to disconnect the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba) if either of the overload or the over discharge is detected by the abnormality detection unit when the battery pack is attached to the main body, to subsequently determine whether discharge from the battery has stopped after activating the first disconnection unit, and to activate the second disconnection unit to disconnect the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba) if discharge from the battery has not stopped, wherein the control unit is configured to determine whether discharge from the battery has stopped based on at least one of a current flowing in the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba), a change in voltage of the battery, or a change in temperature of one of the battery and the electrically-driven working apparatus, and wherein the second disconnection unit is configured to maintain, after once disconnecting the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba), the disconnection of the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba), and to cancel the disconnection of the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba) when the battery pack is detached from the main body and attached to the charger to charge the battery. a main body; a battery pack configured to be either detachably attached to the main body to supply electric power to the main body or detachably attached to a charger; a battery provided to the battery pack; an abnormality detection unit configured to detect either an overload or an over discharge of the battery; a power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba) configured to be connected to the battery; a first disconnection unit and a second disconnection unit, each of the first disconnection unit and the second disconnection unit being provided in the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba) to be operable to disconnect the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba), the first disconnection unit being provided to the main body, and the second disconnection unit being provided to the battery pack; and a control unit configured to activate the first disconnection unit to disconnect the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba) if either of the overload or the over discharge is detected by the abnormality detection unit when the battery pack is attached to the main body, to subsequently determine whether discharge from the battery has stopped after activating the first disconnection unit, and to activate the second disconnection unit to disconnect the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba) if discharge from the battery has not stopped, wherein the control unit is configured to determine whether discharge from the battery has stopped based on at least one of a current flowing in the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba), a change in voltage of the battery, or a change in temperature of one of the battery and the electrically-driven working apparatus, and wherein the second disconnection unit is configured to maintain, after once disconnecting the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba), the disconnection of the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba), and to cancel the disconnection of the power supply path (L1A, L1B, L2A, L2B, L2Aa, L2Ba) when the battery pack is detached from the main body and attached to the charger to charge the battery.