A piston assembly for use in a gas spring or damper can include a piston rod partially positioned within a pressure tube, and a linear position sensing apparatus capable of tracking and determining the velocity of the piston rod. The linear position sensing apparatus can include a sensor, such as a waveguide sensor, connected to the piston rod such that the sensor moves with the piston rod. A beacon, such as a magnet, can be contained within the pressure tube and the sensor can detect the position of the beacon relative to the sensor.

Systems and apparatuses include a lawn mower including a frame, a deck coupled to the frame, and an electric power take off outlet coupled to the frame and structured to electrically couple with a battery. The electric power take off outlet including a power port structured to electrically couple to a peripheral device, and a data port structured to communicate with the peripheral device.

Systems and apparatuses include a lawn mower including a frame, a deck coupled to the frame, and an electric power take off outlet coupled to the frame and structured to electrically couple with a battery. The electric power take off outlet including a power port structured to electrically couple to a peripheral device, and a data port structured to communicate with the peripheral device.

A high-efficiency cutting system for an autonomous mower provides a multiple blade tip cutting radius for a cleaner cut, and more complete mow. The system includes a spinning blade disk provided within a housing including a vertical standoff. The blade disk includes a first pair of cutting blades located between the center of the blade disk and the circumference of the blade disk, and a second pair of cutting blades located radially inward from the first pair of cutting blades. The cutting blades extend downward and away from the blade disk at an angle.

A high-efficiency cutting system for an autonomous mower provides a multiple blade tip cutting radius for a cleaner cut, and more complete mow. The system includes a spinning blade disk provided within a housing including a vertical standoff. The blade disk includes a first pair of cutting blades located between the center of the blade disk and the circumference of the blade disk, and a second pair of cutting blades located radially inward from the first pair of cutting blades. The cutting blades extend downward and away from the blade disk at an angle.

An outdoor moving device includes a main body, a first energy storage device, a second energy storage device, and a connection assembly. The first energy storage device is capable of supplying power to the outdoor moving device and includes at least one first energy storage unit. The second energy storage device is capable of supplying power to the outdoor moving device and includes at least one second energy storage unit. The connection assembly is used for mounting the second energy storage device to the main body. The first energy storage device is detachably mounted to the main body, the first energy storage device is detachable from the main body to supply power to another power tool, the first energy storage unit includes a first positive electrode made of a first material, and the second energy storage unit includes a second positive electrode made of a second material.

A method, system and apparatus for a lawn or turf care maintenance machine, including at least one of fully electric operation; multi-purpose operation; and overnight, silent operation. The machine can be configured for at least one of golf course maintenance, turf care, landscaping, outdoor work, and transportation.

A method, system and apparatus for a lawn or turf care maintenance machine, including at least one of fully electric operation; multi-purpose operation; and overnight, silent operation. The machine can be configured for at least one of golf course maintenance, turf care, landscaping, outdoor work, and transportation.

An adaptive cutting system for a electric lawnmower including a battery, a motor, a controller, a drive assembly, and a blade. The controller can be configured to adjust at least one of a cutting height of the blade and a ground speed output by the drive assembly based on a predetermined run time and a state of charge of the battery.

An adaptive cutting system for a electric lawnmower including a battery, a motor, a controller, a drive assembly, and a blade. The controller can be configured to adjust at least one of a cutting height of the blade and a ground speed output by the drive assembly based on a predetermined run time and a state of charge of the battery.