Abstract: A battery pack includes a battery housing, a positive terminal, a negative terminal, a plurality of cell module assemblies, and a battery management system. The plurality of cell module assemblies are received within an internal cavity of the battery housing, and include a plurality of lithium-ion battery cells that are connected in parallel. The battery management system is in communication with at least one of the plurality of cell module assemblies within the internal cavity, and is structured to receive a voltage tap measurement from each of the plurality of cell module assemblies within the internal cavity, compare the voltage tap measurement from each of the plurality of cell module assemblies to an expected voltage tap measurement, and determine if a voltage tap measurement for a cell module assembly within the plurality of cell module assemblies deviates from the expected voltage tap measurement to identify a faulty cell module assembly.

Abstract: A ZTR mower includes a pair of rear drive wheels, a mowing deck including multiple cutting blades, an electric storage battery, a pair of electric wheel motors each configured to rotate one of the rear drive wheels, multiple electric blade motors each configured to rotate one of the multiple cutting blades, and a master controller in communication with each of the pair of wheel motors and the multiple blade motors. The master controller is configured to control a rotational speed of each of the pair of wheel motors and the multiple blade motors. The master controller is configured to send voltage pulses to the multiple blade motors.

Abstract: A zero turn radius mower including a pair of rear drive wheels, a mowing deck including multiple cutting blades, an electric storage battery, a pair of electric wheel motors each operable to rotate one of the rear drive wheels, multiple electric blade motors each operable to rotate one of the multiple cutting blades, and a master controller in communication with each of the pair of wheel motors and the multiple blade motors. The master controller is operable to control a rotational speed of each of the pair of wheel motors and the multiple blade motors. The master controller is operable to stop rotation of the cutting blades when the wheel motors are operating below a threshold speed.

Abstract: A power system for power equipment includes a battery having a capacity of at least 300-Watt hours and including a battery housing substantially enclosing the battery and a receiver including electrical terminals provided on the receiver, the electrical terminals selectively and electrically coupled to the battery. The receiver is configured to selectively couple with a portion of the battery housing. The receiver is configured to be decoupled from the portion of the battery housing without the use of tools. The receiver includes a planar mounting surface including at least one aperture for receiving a threaded fastener. The receiver is coupled to the power equipment via a threaded fastener.

Abstract: A cell module assembly includes multiple lithium-ion battery cells connected in parallel and an electronic controller. The electronic controller is programmed to receive useful life data for a useful life indicator of the battery cells, save the life data to memory to create a life data history, determine a life measurement based on the life data history, compare the life measurement to a first end of life threshold, determine if the life measurement has met the first end of life threshold, provide a first end of life output indicating that the life measurement has met the first end of life threshold, compare the life measurement to a second end of life threshold, determine if the life measurement has met the second end of life threshold, and provide a second end of life output indicating that the life measurement has met the second end of life threshold.

Abstract: A cell module assembly includes multiple lithium-ion battery cells connected in parallel and an electronic controller. The electronic controller is programmed to receive useful life data for a useful life indicator of the battery cells, save the life data to memory to create a life data history, determine a life measurement based on the life data history, compare the life measurement to a first end of life threshold, determine if the life measurement has met the first end of life threshold, provide a first end of life output indicating that the life measurement has met the first end of life threshold, compare the life measurement to a second end of life threshold, determine if the life measurement has met the second end of life threshold, and provide a second end of life output indicating that the life measurement has met the second end of life threshold.

Abstract: A battery assembly includes a housing having a handle, rechargeable battery cells disposed within the housing, and a mating feature configured to selectively connect the battery assembly with a receptacle of at least one of a power equipment and a charging station. The mating feature includes a connector having at least two electrical ports electrically connected to the battery cells, and a data port configured to provide data communication between the battery assembly and at least one of a power equipment and a charging station. The mating feature also protrudes away from a side portion of the housing.

Abstract: A riding lawn mower comprising, a pair of rear drive wheels, a pair of front wheels, a deck positioned between the pair of front wheels and the pair of rear drive wheels, a rotatable cutting blade, and multiple battery packs removably coupled to the riding lawn mower and structured to provide power to the riding lawn mower, each battery pack graspable and removable by a user, wherein the multiple battery packs jointly provide power to the riding lawn mower.

Abstract: A battery system for power equipment includes a battery configured to removably connect to a receptacle, and a processing circuit of the battery configured to communicably interface with a processing circuit of the receptacle, wherein the battery and the receptacle are configured to electrically connect and transfer power from the battery through the receptacle to the power equipment, wherein the processing circuits of the battery and the receptacle are configured to transfer information between the battery and the receptacle, and wherein the processing circuits of the battery and the receptacle are configured to allow the transfer of power from the battery through the receptacle to the power equipment based on the information transferred between the battery and the receptacle.

Abstract: A cell module assembly includes multiple lithium-ion battery cells connected in parallel and an electronic controller. The electronic controller is programmed to receive useful life data for a useful life indicator of the battery cells, save the life data to memory to create a life data history, determine a life measurement based on the life data history, compare the life measurement to a first end of life threshold, determine if the life measurement has met the first end of life threshold, provide a first end of life output indicating that the life measurement has met the first end of life threshold, compare the life measurement to a second end of life threshold, determine if the life measurement has met the second end of life threshold, and provide a second end of life output indicating that the life measurement has met the second end of life threshold.

Abstract: A sprayer equipment includes a support frame, a pump, a pressure regulator, a concentrate tank, an injector, a spray nozzle, and a controller. The support frame has a plurality of wheels. The pump is coupled to the support frame and includes a pump inlet configured to be fluidly coupled to a water source and a pump outlet providing water at an increased water pressure. The pressure regulator is configured to control the pressure of the water. The concentrate tank is supported by the support frame and configured to store a concentrate fluid. The injector is fluidly coupled to the concentrate tank and configured to inject the concentrate fluid into the water. The spray nozzle is fluidly coupled to the pump outlet and the injector. The controller is coupled to the injector and is configured to control operation of the injector.

Abstract: A battery pack includes a cell module assembly, a primary power output, and a secondary output connector. The cell module assembly includes several lithium-ion battery cells connected in parallel. The primary power output includes a pair of terminals for connection to equipment to be powered by the battery pack. The secondary output connector includes a secondary power output for connection to equipment to be powered by the battery pack and includes an enable input. The primary power output is configured to supply electrical power at a voltage higher than the secondary power output connector. The secondary power output is controllable through the enable input to selectively supply electrical power from the secondary power output.

Abstract: An apparatus including an internal combustion engine, an electric motor configured to start the internal combustion engine, a brake mechanism, a release mechanism movable to a first position to release the brake mechanism, a switch actuated by the release mechanism, a pull rope, a sensor configured to output a signal based on the pull rope being actuated, and a control module coupled to the switch and the sensor. The switch is configured to provide a switch input to the control module when the release mechanism is in the first position. The sensor is configured to provide a sensor input to the control module when the pull rope is actuated. The control module activates the electric motor in response to the switch input and the sensor input.

Abstract: A zero turn radius mower including a pair of rear drive wheels, a mowing deck including multiple cutting blades, an electric storage battery, a pair of electric wheel motors each operable to rotate one of the rear drive wheels, multiple electric blade motors each operable to rotate one of the multiple cutting blades, and a master controller in communication with each of the pair of wheel motors and the multiple blade motors. The master controller is operable to control a rotational speed of each of the pair of wheel motors and the multiple blade motors. The master controller is operable to stop rotation of the cutting blades when the wheel motors are operating below a threshold speed.

Abstract: A snowthrower includes an internal combustion engine and a starter battery pack that provides electrical power to operate an electric starter motor. The starter battery pack is received within a receptacle of the snowthrower and is selectively coupled to the starter motor to initiate operation of the internal combustion engine. The starter battery pack can further include a battery heating circuit that is operable to heat the starter battery pack above ambient temperatures to increase the current output of the starter battery pack. The battery heating circuit includes a controller that utilizes electrical power from the starter battery pack to heat the starter battery pack.

Abstract: A ride-on vehicle, such as a zero turn radius lawnmower, includes a main chassis having first and second pivot joints, a in first rocker arm having a caster wheel on a first end portion and a drive wheel on a second end portion, and a second rocker arm having a caster wheel on a first end portion and a drive wheel on a second end portion, wherein the first rocker arm and the second rocker arm are independently pivotally coupled to the respective first and second pivot joints of the main chassis at a location between the caster wheels and the drive wheels. The ride-on vehicle may also include a modular mower deck assembly with a plurality of mower deck modules having a blade assembly, an electric blade motor configured to provide rotation to the blade assembly, and an attachment assembly configured to enable attachment between adjacent mower deck modules.

Abstract: A zero turn radius (ZTR) mower that includes an electric powertrain. The electric powertrain of the ZTR mower includes one or more electric storage batteries, a plurality of electric wheel drive motors that each drives one of the rear wheels of the ZTR mower and a plurality of electric blade motors that each drives one of the plurality of cutting blades mounted to a mower deck. The electric powertrain includes a master controller operable to selectively control the supply of electric power from the electric storage battery to the pair of electric wheel drive motors and the plurality of electric blade motors. The master controller controls the speed and direction of movement of the ZTR mower through user inputs. The master controller is able to separately control the operational speed of each of the electric blade motors based upon the direction and speed of movement of the ZTR mower.

Abstract: A lawnmower includes a cutting deck, a cutting blade positioned below the cutting deck, and an electric motor coupled to and configured to drive the cutting blade. The electric motor is positioned at least partially below the cutting deck.

Abstract: Ride-on outdoor power equipment includes one or more batteries, one or more electric traction motors electrically connected to the one or more batteries, one or more user input devices, a plurality of sensors, and a controller in communication with the one or more batteries, the electric traction motors and the one or more user input devices, the controller configured to control the electric traction motors to operate the ride-on outdoor power equipment based on inputs received via the user input devices.

Abstract: A sprayer equipment includes a support frame, a pump, a pressure regulator, a concentrate tank, an injector, a spray nozzle, and a controller. The support frame has a plurality of wheels. The pump is coupled to the support frame and includes a pump inlet configured to be fluidly coupled to a water source and a pump outlet providing water at an increased water pressure. The pressure regulator is configured to control the pressure of the water. The concentrate tank is supported by the support frame and configured to store a concentrate fluid. The injector is fluidly coupled to the concentrate tank and configured to inject the concentrate fluid into the water. The spray nozzle is fluidly coupled to the pump outlet and the injector. The controller is coupled to the injector and is configured to control operation of the injector.