Disclosed is a secondary battery pack including a plurality of cylindrical battery cells with improved cooling efficiency. The secondary battery pack includes a plurality of cylindrical battery cells having electrode terminals formed at both ends thereof; a pack case having an accommodation portion formed to accommodate the plurality of cylindrical battery cells therein and at least one exposing portion perforated from an inside to an outside thereof; at least one heat dissipation plate configured in the form of a metal plate and located at the exposing portion of the pack case so that at least a portion thereof is exposed out through the exposing portion of the pack case; and a heat transfer pad having a thermally conductive material in a solid state and interposed between the plurality of cylindrical battery cells and the heat dissipation plate.

An inductive heater assembly for heating a power tool battery pack, the inductive heater assembly comprising a housing, a battery pack interface configured to receive the power tool battery pack, a charging base, a coil portion located within the housing. The coil portion including a first coil winding and a second coil winding configured to generate an electromagnetic field, wherein the first coil winding and the second coil winding to form a Helmholtz coil.

A battery (1800) for insertion into a battery compartment (150) of a hand-held work tool (100, 200), wherein the battery (1800) has a weight between 3-7 kg, and comprises a groove (1810) arranged on one side of the battery to mate with a corresponding supporting heel (1710) arranged on a wall of a battery compartment (150). The battery further comprises an upper ridge structure (1820) and a lower ridge structure (1830) arranged on an opposite side of the battery compared to the groove (1810), wherein the ridge structures (1820, 1830) are arranged to mate with corresponding dove-tail grooves (1720, 1730) of the battery compartment (150).

A job box includes a base defining a storage area, a lid coupled to the base and moveable between an open position, in which the storage area is accessible, and a closed position, in which the storage area in not accessible, and a charging station supported by the base. The station includes a first charging port configured to charge a battery pack of a first type, a second charging port configured to charge a battery pack of a second type, a light, and a first power outlet. The charging station is moveable relative to the job box to a plurality of different positions.

A job box includes a base defining a storage area, a lid coupled to the base and moveable between an open position, in which the storage area is accessible, and a closed position, in which the storage area in not accessible, and a charging station supported by the base. The station includes a first charging port configured to charge a battery pack of a first type, a second charging port configured to charge a battery pack of a second type, a light, and a first power outlet. The charging station is moveable relative to the job box to a plurality of different positions.

A cutting tool includes an electric motor supported by a housing, an accessory mounting portion including an output member connected to a saw blade, a transmission mechanism connecting the electric motor to the output member, a base plate disposed at the bottom of the housing and having a mounting hole for the saw blade to pass through, a battery pack interface configured to be detachably connected to a battery pack, a liquid storage system including a liquid storage device configured to store a liquid and detachably mounted on the housing, and a system control member disposed on a liquid flow path of the liquid storage system and used for controlling the flow state of the liquid in the liquid storage device. The electric motor is a brushless motor, and a rotational speed of the electric motor is not lower than 7000 revolutions per minute.

A charging device (1) includes: a case (4) to which a battery pack is detachably attached; a charging circuit portion that charges the battery pack; a fan (30) for cooling; a first opening portion (5) for intake; and a second opening portion (6) for exhaust. An air path from the fan (30) to the second opening portion (6) is connected by an air path forming portion (33) having a long and curved passage length. The air path forming portion (33) narrows down at a point in the middle to achieve a positional relationship in which the fan (30) cannot be seen from the second opening portion (6), thereby making it difficult for operating noise of the fan (30) to leak to the outside. The air path forming portion (33) is formed using a wall surface of the case (4), an outer air-guiding wall (34), and an inner air-guiding wall (35).

A storage battery device for a battery pack of a handheld power tool. The storage battery device including at least one electronics unit that has at least one circuit board. The electronics unit includes at least one electrically conductive plastic element, in particular, an electrically conductive elastomer, which is connected electrically to at least the circuit board.

A storage battery device for a battery pack of a handheld power tool. The storage battery device including at least one electronics unit that has at least one circuit board. The electronics unit includes at least one electrically conductive plastic element, in particular, an electrically conductive elastomer, which is connected electrically to at least the circuit board.

A battery pack charger configured to heat a power tool battery pack, the battery pack charger comprising a housing, an adapter portion integrated with the housing of the battery pack charger, the adapter portion configured to mechanically and electrically connect to the power tool battery pack, and an inductive heater including a coil portion, the coil portion including a coil housing and one or more inductive coil windings, the inductive heater configured to generate an electromagnetic field to heat the power tool battery pack.