Abstract: A service vehicle for storing and transporting outdoor power equipment includes a loading/unloading ramp, a charging bay configured to charge a rechargeable battery pack mounted on a first piece of outdoor power equipment, a spare battery charging station configured to store and selectively charge a spare rechargeable battery pack, a user interface having a display, and a controller in communication with the user interface and having a processing circuit with a charging module. The controller is configured to receive a charge level of the rechargeable battery pack and the spare rechargeable battery pack from the charging module and instruct the user interface to display the charge levels.

Abstract: A outdoor power equipment system includes a removable rechargeable battery module, a robotic lawn mower, and a portable power equipment. The robotic lawn mower includes a receptacle configured to receive the battery module, and an electric motor electrically coupled to the receptacle to receive electricity to drive at least one of a wheel and a cutting implement. The portable power equipment includes a receptacle configured to receive the battery module, and at least one of an electric motor, a light source, and an amplification circuit coupled to the receptacle to receive electricity.

Abstract: An autonomous lawn mower includes removable batteries, one or more electric motors, a cutting blade, one or more wheels, an angle sensor, and a controller. The cutting blade is driven by one of the electric motors. The wheels are driven by one of the electric motors. The controller is configured to allow the lawn mower to perform a grass cutting function at a jobsite without human interaction. The controller is configured to determine whether a roll angle is greater than a first predefined amount using data from the angle sensor. In response to determining the roll angle is greater than the first predefined amount, the controller is configured to stop operation of one of the one or more electric motors configured to provide rotational drive power to the cutting blade.

Abstract: A robotic lawn mower includes a first wheel driven by a first electric wheel motor, a second wheel driven by a second electric wheel motor, a cutting implement driven by an electric cutting implement motor, a power system for powering the electric wheel motors and the electric cutting implement motor, and a controller configured to control operation of the electric wheel motors and the electric cutting implement motor to autonomously mow a yard. The power system includes multiple removable rechargeable battery modules and multiple receptacles, each receptacle configured to receive one of the battery modules.

Abstract: An autonomous lawn mower includes removable batteries, one or more electric motors, a cutting blade, one or more wheels, an angle sensor, and a controller. The cutting blade is driven by one of the electric motors. The wheels are driven by one of the electric motors. The controller is configured to allow the lawn mower to perform a grass cutting function at a jobsite without human interaction. The controller is configured to determine whether a roll angle is greater than a first predefined amount using data from the angle sensor. In response to determining the roll angle is greater than the first predefined amount, the controller is configured to stop operation of one of the one or more electric motors configured to provide rotational drive power to the cutting blade.

Abstract: A system for providing autonomous lawn care services. The system includes a number of autonomous outdoor power devices, and one or more service vehicles. The one or more service vehicles are configured to selectively load and unload one or more of the autonomous outdoor power devices at a jobsite based on instructions received by a controller of the one or more service vehicles.

Abstract: A robotic lawn mower includes a first wheel driven by a first electric wheel motor, a second wheel driven by a second electric wheel motor, a cutting implement driven by an electric cutting implement motor, a power system for powering the electric wheel motors and the electric cutting implement motor, and a controller configured to control operation of the electric wheel motors and the electric cutting implement motor to autonomously mow a yard. The power system includes multiple removable rechargeable battery modules and multiple receptacles, each receptacle configured to receive one of the battery modules.

Abstract: The quick-release chuck for a rotary power tool is provided for holding a tool bit. The chuck includes a barrel having an axial bore to receive the tool bit and an axially movable sleeve operable to position a locking member to selectively lock or release the tool bit. A proximal end of the chuck near the housing of the power tool includes a low-profile collar which holds a spring in compression against the sleeve, biasing the sleeve in a distal, locked position. The components of the chuck may advantageously be assembled in a stacked manner. The low-profile collar permits the chuck to occupy a minimal length and to be positioned with a minimal separation from the housing of the power tool for enhanced safety.

Abstract: The quick-release chuck for a rotary power tool is provided for holding a tool bit. The chuck includes a barrel having an axial bore to receive the tool bit and an axially movable sleeve operable to position a locking member to selectively lock or release the tool bit. A proximal end of the chuck near the housing of the power tool includes a low-profile collar which holds a spring in compression against the sleeve, biasing the sleeve in a distal, locked position. The components of the chuck may advantageously be assembled in a stacked manner. The low-profile collar permits the chuck to occupy a minimal length and to be positioned with a minimal separation from the housing of the power tool for enhanced safety.