Abstract: A battery pack comprises a battery pack housing operably connectable to a power tool, at least five battery cells disposed in the housing, and battery pack terminals electrically connectable to power tool terminals of the power tool and electrically connected to the battery cells. An inductance characteristic of the battery pack is greater than 0 and less than 0.20 micro Henries. A ratio of inverse impedance and inductance characteristic of the battery pack is greater than 5×107??1H?1.

Abstract: A battery pack including a housing, a terminal block, a printed circuit board, a plurality of pouch cells assembled and connected in a stacked configuration positioned within the housing, a sensor placed on a central portion of an outermost pouch cell of the stack of the plurality of pouch cells and a battery management unit coupled to the printed circuit board and electrically coupled to the sensor.

Abstract: A battery-powered motor may include an electric motor, a controller, and a housing. The electric motor may be wound to enable the battery-powered motor to achieve a non-limited motor maximum motor revolutions per minute (RPM) for at least one specified battery. The controlling current may include limiting current to the electric motor at lower RPMs, and limiting the current to prevent the RPM of the electric motor from exceeding a limited maximum motor RPM which is lower than the non-limited motor maximum RPM. The housing may enclose the electric motor and the controller and the specified battery. The housing may have a form factor to engage with a machine that engages with an internal combustion engine that has a maximum engine RPM that is approximately the same as the limited maximum motor RPM.

Abstract: A battery system including a removable battery pack, including a plurality of battery cells and an interface for electrically and mechanically coupling to a load bearing device; a vehicle, including a power station for providing power to drive the vehicle, the power station including a port for accepting the removable battery pack; and a power tool including a port for accepting the removable battery pack.

Abstract: A battery pack having a battery housing that defines a cavity for receiving a plurality of battery cells. The battery pack cavity is sealed from the air outside the battery pack housing to prevent water and other contaminants from reaching the plurality of battery cells. The battery pack may include a sealing material to create a seal between an upper housing and a lower housing of the battery housing. The battery pack also include a sealing material to create a seal around a terminal block of the battery pack.

Abstract: A construction laser level includes a housing and a gimbal assembly disposed in the housing. The gimbal assembly includes a first laser generator operable to generate a first output beam. The first output beam projects outside of the housing onto a target surface. The gimbal assembly includes a second laser generator operable to generate a second output beam. The second output beam projects outside of the housing onto the target surface. The first output beam projects as a first line on the target surface. The second output beam projects as a second line on the target surface. The first line is generally perpendicular to the second line. A wavelength of the first output beam is in the range of 540 to 575 nanometers.

Abstract: A battery-powered motor may include an electric motor, a controller, and a housing. The electric motor may be wound to enable the battery-powered motor to achieve a non-limited motor maximum motor revolutions per minute (RPM) for at least one specified battery. The controlling current may include limiting current to the electric motor at lower RPMs, and limiting the current to prevent the RPM of the electric motor from exceeding a limited maximum motor RPM which is lower than the non-limited motor maximum RPM. The housing may enclose the electric motor and the controller and the specified battery. The housing may have a form factor to engage with a machine that engages with an internal combustion engine that has a maximum engine RPM that is approximately the same as the limited maximum motor RPM.

Abstract: A battery pack having a battery housing that defines a cavity for receiving a plurality of battery cells. The battery pack cavity is sealed from the air outside the battery pack housing to prevent water and other contaminants from reaching the plurality of battery cells. The battery pack may include a sealing material to create a seal between an upper housing and a lower housing of the battery housing. The battery pack also include a sealing material to create a seal around a terminal block of the battery pack.

Abstract: When providing alternating current (AC) power to operate AC powered devices such as power tools (such as drills, table saws, miter saws), equipment (such as lawn mowers), and consumer products (such as refrigerators, television, lights) without being tied to a fixed utility power supply typically requires a generator (such as an internal combustion engine based generator) or a battery powered inverter. In order to meet power and runtime needs for these devices, a battery powered inverter must be relatively large and expensive. This simple fact prohibits their use in many environments.

Abstract: A battery pack includes a battery cell holder, where the battery cell holder includes multiple frames with each of the frames defining a cavity and adjacent frames connected to each other. The battery pack includes at least one pouch battery cell disposed in the cavity of each of the frames, where pouch battery cells disposed in adjacent frames are electrically connected to each other. The multiple frames are arranged in a stacked configuration.

Abstract: A battery pack including a first subset of battery cells and a second subset of battery cells, set of switches, a DC output port and an AC output port. The battery pack may provide both a DC output signal at the DC output port and an AC output signal at the AC output port by selectively activating the switches of the set of switches. The battery pack may couple the first subset of battery cells and the second subset of battery cells in a parallel configuration or a series configuration.

Abstract: A wall panel system including a first wall panel, the first panel including at least a first panel hook portion. The system also including a second wall panel having a different configuration than the first wall panel. The second panel includes at least a second panel hook portion and a third panel hook portion opposing the second panel hook portion. The first wall panel is configured to engage with the second wall panel to create a wall panel assembly.

Abstract: A combustion powered tool uses a fuel canister with a refillable hydrogen storage vessel containing metal hydride. The fuel canister includes a valve assembly with at least one valve to release hydrogen fuel gas. The valve assembly is removable from the refillable hydrogen storage vessel. A coupling device includes a first coupler attached to the refillable hydrogen storage vessel and a second coupler attached to the valve assembly. An outlet adapter is attached to the valve assembly to supply hydrogen fuel gas to the power tool.

Abstract: When providing alternating current (AC) power to operate AC powered devices such as power tools (such as drills, table saws, miter saws), equipment (such as lawn mowers), and consumer products (such as refrigerators, television, lights) without being tied to a fixed utility power supply typically requires a generator (such as an internal combustion engine based generator) or a battery powered inverter. In order to meet power and runtime needs for these devices, a battery powered inverter must be relatively large and expensive. This simple fact prohibits their use in many environments.

Abstract: A method of manufacturing a battery pack including the creation of a support board for enabling conversion of the battery pack from providing a first voltage to providing a second voltage. The support board is created by injection molding about a precut set of power traces for coupling a converting element to a plurality of battery cells. The power traces couple the plurality of battery cells to a set of battery pack terminals. The support board may be mechanically coupled to a battery cell holder.

Abstract: A wall panel system including a first wall panel, the first panel including at least a first panel hook portion. The system also including a second wall panel having a different configuration than the first wall panel. The second panel includes at least a second panel hook portion and a third panel hook portion opposing the second panel hook portion. The first wall panel is configured to engage with the second wall panel to create a wall panel assembly.

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 power supply interface receiving a medium-voltage-rated removable battery pack having a maximum rated voltage in the range of 40 to 80 volts, and a brushless direct current (BLDC) motor. The motor includes a rotor and a stator having at least three stator windings corresponding to at least three phases of the motor, the rotor being moveable by the stator when the stator windings are appropriately energized within the corresponding phases. A multi-phase inverter bridge circuit is disposed between the power supply interface and the motor, and a controller is configured to output drive signals to the inverter bridge circuit to control flow of current from the battery pack to the motor such that the motor produces a maximum power output of at least approximately 1750 watts at a torque of approximately 1.5 to 2 Newton-meters.

Abstract: A system for remotely retrieving sensed conditions at one or more building components. The building components are remote or numerous so that a wireless collection of the sensed conditions provides a significant benefit to a builder or building operator. A remote transceiver sends a wireless signal to a building component. The building component includes an onboard transceiver. At least some of the energy from the transmitted wireless signal is received by the onboard transceiver, sent to a storage device, and stored therein. The stored energy is used to operate a sensor for sensing an onboard condition. The onboard condition is then wirelessly transmitted by the onboard transceiver back to the remote transceiver to be displayed.

Abstract: A system for remotely retrieving sensed conditions at one or more building components. The building components are remote or numerous so that a wireless collection of the sensed conditions provides a significant benefit to a builder or building operator. A remote transceiver sends a wireless signal to a building component. The building component includes an onboard transceiver. At least some of the energy from the transmitted wireless signal is received by the onboard transceiver, sent to a storage device, and stored therein. The stored energy is used to operate a sensor for sensing an onboard condition. The onboard condition is then wirelessly transmitted by the onboard transceiver back to the remote transceiver to be displayed.