Abstract: The present invention is directed to a lawn mower and more particularly to a system and method of charging a variety of batteries of the lawn mower including connecting the lawn mower to a towing vehicle, either directly or by placing the lawn mower on a trailer, towing the lawn mower, generating electricity upon towing the lawn mower utilizing a generator mechanically coupled to the lawn mower wheels or the wheels of the trailer. The generator converts the mechanical energy into electrical energy. The generator is electrically coupled to first type of battery and a second type of battery that is connected to the lawn mower and/or a first type of battery and a second type of battery that is connected to a charging station on the trailer. The system also includes a charging circuit for each of the first type of battery and the second type of battery.

Abstract: A multi-voltage battery pack for use with tools of different operating voltages including a housing, a first string of battery cells arranged in electrical series and disposed inside the housing, the first string having a first positive voltage terminal and a first negative voltage terminal, a second string of battery cells arranged in electrical series and disposed inside the housing, the second string having a second positive voltage terminal and a second negative voltage terminal, and a power tool interface shaped and configured to interchangeably (1) mechanically and electrically couple with a first battery pack interface of a first power tool that is configured to operate at a first operating voltage, and (2) mechanically and electrically couple with a second battery pack interface of a second power tool that is configured to operate at a second operating voltage.

Abstract: A system comprising a multi-voltage battery pack for use with tools of different operating voltages, including a housing and a power tool interface shaped and configured to interchangeably (1) mechanically and electrically couple with a first battery pack interface of a first power tool that is configured to operate at a first operating voltage and is of a design that was on sale prior to May 18, 2014 and, and (2) mechanically and electrically couple with a second battery pack interface of a second power tool that is configured to operate at a second operating voltage and is of a design that was not on sale prior to May 18, 2014.

Abstract: A power tool system including a multi-voltage battery pack for use with a first power tool, wherein the first power tool comprises a first battery pack interface and is configured to operate at a first operating voltage and a second power tool configured for use with the multi-voltage battery pack such that the system includes both the multi-voltage battery pack and the second power tool, wherein the second power tool comprises a second battery pack interface and is configured to operate at a second operating voltage, wherein the second operating voltage is higher than the first operating voltage.

Abstract: A cordless power tool system including (a) a multi-voltage battery pack for use with tools of different operating voltages including a housing, a first string of battery cells arranged in electrical series and disposed inside the housing, a second string of battery cells arranged in electrical series and disposed inside the housing, and a power tool interface shaped and configured to interchangeably (1) mechanically and electrically couple with a first battery pack interface of a first power tool that is configured to operate at a first operating voltage, and (2) mechanically and electrically couple with a second battery pack interface of a second power tool that is configured to operate at a second operating voltage, and (b) a battery pack charger configured to charge the multi-voltage battery pack.

Abstract: A power tool system includes a first power tool having a first power tool rated voltage, a second power tool having a second power tool rated voltage that is different from the first power tool rated voltage, and a first battery pack coupleable to the first power tool and to the second power tool. The first battery pack is switchable between a first configuration having a first battery pack rated voltage that corresponds to the first power tool rated voltage such that the first battery pack enables operation of the first power tool, and a second configuration having a convertible battery pack rated voltage that corresponds to the second power tool rated voltage such that the battery pack enables operation of the second power tool.

Abstract: A table saw guard assembly for guarding a blade on a table saw is provided. The table saw guard assembly includes a support structure and a hood assembly including at least one of a front curtain, first side curtain, second side curtain and top curtain, wherein each of said curtains are independently moveable and/or removable from the hood assembly. Furthermore, a table saw guard assembly is provided including a quick release mechanism for connecting the hood assembly to the support structure.

Abstract: An adapter for electrically connecting a power tool battery pack with a power tool and/or a power tool battery pack charger. The adapter has a controller, and a wireless communication circuit connected to the controller for wireless communication with a computing device, the wireless communication circuit receiving data from the computing device. The controller can perform an action according to the data received from the computing device.

Abstract: A table saw guard assembly for guarding a blade on a table saw is provided. The table saw guard assembly includes a support structure and a hood assembly including at least one of a front curtain, first side curtain, second side curtain and top curtain, wherein each of said curtains are independently moveable and/or removable from the hood assembly. Furthermore, a table saw guard assembly is provided including a quick release mechanism for connecting the hood assembly to the support structure.

Abstract: A system includes a charger having one or more receptacles for charging one or more removable battery packs, where the charger is capable of being electrically coupled to an electrical bus of a prime mover. The charger is capable of operating in multiple different charging modes. The charger is capable of discharging energy from the removable battery packs to the electrical bus to charge one or more components electrically coupled to the electrical bus and/or drawing energy from the electrical bus to charge one or more of the removable battery packs.

Abstract: A power tool is provided including a brushless motor. A power supply interface is arranged to receive at least one of AC power from an AC power supply having a first nominal voltage or DC power from a DC power supply having a second nominal voltage, where the first and second nominal voltages both fall approximately within the operating voltage range of the motor. A motor control circuit is provided including a rectifier circuit converting the AC power to a rectified voltage signal, a power switch circuit having power switches to supply electric power from at least one of the DC power or the rectified voltage signal to the motor, and a controller controlling a switching operation of the power switches to regulate the supply of electric power to the motor at a level corresponding to the operating voltage range of the motor.

Abstract: A battery pack and charger system includes a first battery pack having a first set of battery cells and configured to provide only a first operating voltage and a second battery pack having a second set of battery cells and configured to provide the first operating voltage and a second operating voltage that is different from the first operating voltage and a battery pack charger configured to be able to charge the first battery pack and the second battery pack.

Abstract: A power tool is provided including a brushless motor having a rotor and a stator. A power supply interface is arranged to selectively receive a first power input from a first power supply having a first nominal voltage and a second power input from a second power supply having a second nominal voltage, where at least the first nominal voltage does not fall within approximately the operating voltage range of the motor. A motor control circuit is provided including a power switch circuit having power switches that supply electric power from at least one of the first power input or the second power input to the motor, and a controller that controls a switching operation of the power switches to optimize the supply of electric power from the first power input at a level corresponding to the operating voltage range of the motor.

Abstract: An adapter for electrically connecting a power tool battery pack with a power tool and/or a power tool battery pack charger. The adapter has a controller, and a wireless communication circuit connected to the controller for wireless communication with a computing device, the wireless communication circuit receiving data from the computing device. The controller can perform an action according to the data received from the computing device.

Abstract: An appliance includes an electrical connection to receive power from a mains line through an electrical grid to operate the appliance, at least one battery to supply power to operate the appliance, a battery charging circuit for charging the at least one battery and a controller. The controller is programmed to determine when to use power from the mains line to operate the appliance and/or to charge the at least one battery and determine when to use power from the at least one battery and/or to supply power back to the electrical grid.

Abstract: A power tool system includes a first power tool having a first power tool rated voltage, a second power tool having a second power tool rated voltage that is different from the first power tool rated voltage, and a first battery pack coupleable to the first power tool and to the second power tool. The first battery pack is switchable between a first configuration having a first battery pack rated voltage that corresponds to the first power tool rated voltage such that the first battery pack enables operation of the first power tool, and a second configuration having a convertible battery pack rated voltage that corresponds to the second power tool rated voltage such that the battery pack enables operation of the second power tool.

Abstract: An adapter for electrically connecting a power tool battery pack with a power tool and/or a power tool battery pack charger. The adapter has a controller, and a wireless communication circuit connected to the controller for wireless communication with a computing device, the wireless communication circuit receiving data from the computing device. The controller can perform an action according to the data received from the computing device.

Abstract: An adapter for electrically connecting a power tool battery pack with a power tool and/or a power tool battery pack charger. The adapter has a controller, and a wireless communication circuit connected to the controller for wireless communication with a computing device, the wireless communication circuit receiving data from the computing device. The controller can perform an action according to the data received from the computing device.

Abstract: A power tool system includes a first power tool having a first power tool rated voltage, a second power tool having a second power tool rated voltage that is different from the first power tool rated voltage, and a first battery pack coupleable to the first power tool and to the second power tool. The first battery pack is switchable between a first configuration having a first battery pack rated voltage that corresponds to the first power tool rated voltage such that the first battery pack enables operation of the first power tool, and a second configuration having a convertible battery pack rated voltage that corresponds to the second power tool rated voltage such that the battery pack enables operation of the second power tool.

Abstract: A fluid pump having a housing with a fluid input and a fluid output, a removable power tool battery pack disposed within the housing, a motor disposed within the housing and electrically connected to the power tool battery pack, and an impeller driven by the motor for drawing fluid through an input opening and into an output opening. The fluid pump may be partially buoyant when placed in a fluid.