Abstract: This application relates to a cordless power tool system including a set of cordless power tools, a set of rechargeable and removable battery packs, and a set of battery pack chargers.

Abstract: The present disclosure is directed to an electric power tool system with cordless power tools and removable, rechargeable battery packs that mate with the power tools to provide stored energy to the power tools. The battery packs may include a first battery pack having a basic interface and a second battery pack having an advanced interface. The power tools may include a first power tool having a basic interface and a second power tool having an advanced interface. The basic interface battery pack may mate with both the basic interface power tool and the advanced interface power tool. The advanced interface battery pack may mate with both the basic interface power tool and the advanced interface power tool.

Abstract: A power tool system includes a power tool having a tool housing and a load disposed in the tool housing. The tool housing includes a battery pack receptacle having a set of tool terminals. The power tool system includes a set of battery packs. Each battery pack includes a battery pack housing operably connectable to the battery pack receptacle through a battery pack interface disposed on the battery pack housing, a set of battery cells disposed in the battery pack housing, and a set of battery pack terminals electrically connectable to the set of tool terminals and electrically connected to the set of battery cells. Each battery pack in the set of battery packs has a same nominal voltage and defines a common interface and at least a portion of the set of battery packs defines a total volume in a range of approximately 150 cm3 to 1300 cm3.

Abstract: This application relates to a power tool system including a plurality of power tools, a plurality of battery packs and at least one battery pack charger and method for operating the power tools with the battery packs. This application also relates to a method for charging the battery packs and a method for monitoring a state of charge of the battery pack. In one implementation, the system includes an existing battery pack designed to provide (output) a relatively low voltage, an existing power tool designed to operate at the relatively low voltage, a new battery pack designed to provide (output) the relatively low voltage and a relatively high voltage, and a new power tool designed to operate at the relatively high voltage.

Abstract: A power tool battery pack enclosure is configured to be retrofittedly coupled to battery pack receptacles of a plurality of power tools, each battery pack receptacle configured to removably receive a plurality of power tool battery packs. The enclosure includes a first clamshell member and a second clamshell member configured to be coupled around at least a portion of an exterior surface of each battery pack receptacle. Each of the first and second clamshell members have a top wall portion configured to be received over the exterior surface of the battery pack receptacle and a sidewall portion that extends downward from the top wall portion over at least a portion of the battery pack housing when the battery pack is received in the battery pack receptacle.

Abstract: A power tool/battery pack combination includes an electric motor, one or more electrochemical cells, and a capacitive element. The electric motor is connected in series to a first switch. The series combination of the electric motor and the first switch is connected to a first terminal and a second terminal. The one or more electrochemical cells are connected across a third terminal and a fourth terminal. The third terminal and the fourth terminal are coupled respectively to the first terminal and the second terminal. The one or more electrochemical cells supply power to the electric motor via the first switch. The capacitive element includes one or more capacitors. The capacitive element is connected across the third terminal and the fourth terminal. The capacitive element is capable of storing inductive energy generated by the one or more electrochemical cells.

Abstract: The present disclosure is directed to a battery pack power transfer adaptor and a battery pack system that includes a battery pack power transfer adaptor. The adaptor enables a battery pack to provide power to a variety of devices and receive power from a variety of sources.

Abstract: A multi-voltage battery pack including a converting system for converting the battery pack between a low voltage configuration and a high voltage configuration. The converting system includes a converter element moves between a first position and a second position to configure the battery pack between the low voltage configuration and the high voltage configuration. The converter element includes a set of contacts that mates with a set of contact pads to establish the voltage configuration.

Abstract: An adaptor for connecting a power source to a power tool includes a housing having a first end that is configured to connect to a power source and a second end that is configured to connect to a power tool. The adaptor includes a control circuit disposed within the housing. The control circuit is configured to detect a type of the power tool, to detect an overstress condition in the power tool and to control the power tool responsive to detecting the overstress condition based on the detected type of power tool.

Abstract: A power tool system includes a power tool having a tool housing and a load disposed in the tool housing. The tool housing includes a battery pack receptacle having a set of tool terminals. The power tool system includes a set of battery packs. Each battery pack includes a battery pack housing operably connectable to the battery pack receptacle through a battery pack interface disposed on the battery pack housing, a set of battery cells disposed in the battery pack housing, and a set of battery pack terminals electrically connectable to the set of tool terminals and electrically connected to the set of battery cells. Each battery pack in the set of battery packs has a same nominal voltage and defines a common interface and at least a portion of the set of battery packs defines a total volume in a range of approximately 150 cm3 to 1300 cm3.

Abstract: The present disclosure is directed to a battery pack comprising a housing, a plurality of battery cells, a battery cell holder holding the plurality of battery cells, a printed circuit board, a plurality of components requiring exposure, the plurality of components affixed to the printed circuit board, a plurality of adhesion holes positioned to form a boundary about the plurality of components, a low pressure molded material applied to the printed circuit board such that the plurality of components are exposed and surrounded by the low pressure molded material.

Abstract: The present disclosure is directed to a cordless reciprocating saw including a mechanical interface for attaching a removable battery pack. The mechanical interface includes a strike plate to reduce the effects of vibrational forces on the battery pack.

Abstract: A power tool system includes a power tool having a tool housing. The tool housing includes a battery pack receptacle having a set of tool terminals. A brushless motor includes an output shaft operably coupled to drive a tool element, a stator having an outer diameter of approximately 60 mm to approximately 80 mm, and a stack length of approximately 75% to approximately 125% of the outer diameter of the stator. A controller is operably connected to the set of tool terminals and to the brushless motor to control power delivery to the brushless motor. A battery pack includes a battery pack housing connectable to the battery pack receptacle on the tool housing and a set of battery cells. The set of battery cells includes at least 15 battery cells each having a nominal voltage of approximately 3.6V and an impedance of approximately ?13 m?. A set of battery pack terminals is connectable to the set of tool terminals.

Abstract: A battery pack includes a housing, a set of battery cells, and a latch assembly mechanism. The latch assembly mechanism includes a user activation button that pivots about a first axis and an engaging portion that pivots about a second axis, where the first axis is parallel to the second axis and the user activation button actuates the engaging portion. In another aspect, a battery pack includes a housing and a set of battery cells. The housing includes a top portion, a first side portion connected to the top portion, a second side portion connected to the top portion, the second side portion opposite the first side portion, and a bottom portion connected to the first side portion and the second side portion, the bottom portion opposite the top portion. An insert is molded into at least one of the first side portion and the second side portion.

Abstract: The present disclosure is directed to a cordless reciprocating saw including a mechanical interface for attaching a removable battery pack. The mechanical interface includes a strike plate to reduce the effects of vibrational forces on the battery pack.

Abstract: A multi-voltage battery pack including a converting system for converting the battery pack between a low voltage configuration and a high voltage configuration. The converting system includes a converter element moves between a first position and a second position to configure the battery pack between the low voltage configuration and the high voltage configuration. The converter element includes a set of contacts that mates with a set of contact pads to establish the voltage configuration.

Abstract: The present disclosure is directed to a cordless reciprocating saw including a mechanical interface for attaching a removable battery pack. The mechanical interface includes a strike plate to reduce the effects of vibrational forces on the battery pack.

Abstract: A first battery pack that is switchable between a first configuration having a first rated output voltage that corresponds to a first power tool rated operating voltage such that the first battery pack enables operation of the first power tool, and a second configuration having a second rated output voltage that corresponds to a second power tool rated operating voltage such that the first battery pack enables operation of the second power tool.

Abstract: A power tool/battery pack combination includes an electric motor, one or more electrochemical cells, and a capacitive element. The electric motor is connected in series to a first switch. The series combination of the electric motor and the first switch is connected to a first terminal and a second terminal. The one or more electrochemical cells are connected across a third terminal and a fourth terminal. The third terminal and the fourth terminal are coupled respectively to the first terminal and the second terminal. The one or more electrochemical cells supply power to the electric motor via the first switch. The capacitive element includes one or more capacitors. The capacitive element is connected across the third terminal and the fourth terminal. The capacitive element is capable of storing inductive energy generated by the one or more electrochemical cells.