A battery pack is provided that includes battery cell magazines and a battery management system to control charging and discharging of the associated battery pack. The battery cell magazines may include a magazine housing and associated battery cells. The magazine housing may define a plurality of battery cell recesses to receive the battery cells. The battery management system may be configured to balance the state of charge of a battery stack of battery packs. Methods for balancing a state of charge of battery packs of a battery stack are also provided, as are systems for lifting a battery stack.

A mower including a handle assembly and a grip coupled to the handle assembly. The handle assembly includes a cross member. The grip is moveable longitudinally relative to the cross member. The mower also includes a sensor operable to generate an output signal based on a position of the grip relative to the cross member, and a drive assembly configured to operate based on the output signal.

Lawn mowers and attachments for lawn mowers are provided. An attachment includes a body including one or more sidewalls defining an internal volume configured to receive clippings from the lawn mower, wherein the body defines an opening; and a cover coupled to the body at the opening and moveable between an open position, whereby the opening is open, and a closed position, whereby the opening is closed, wherein the cover is selectively lockable in the open position, and wherein the cover is biased to the closed position by a spring.

A reusable case for packing, storing, transporting and/or charging an outdoor power equipment is discussed, along with outdoor power equipment configured to be stored within the case. One example embodiment comprises a case for storing outdoor power equipment, comprising: a top portion; and a bottom portion movably connected to the top portion, wherein the bottom portion has one or more openings to allow one or more wheels of an outdoor power equipment to protrude through the one or more openings; wherein the top portion and the bottom portion are configured to substantially enclose the outdoor power equipment in a closed configuration.

A reusable case for packing, storing, transporting and/or charging an outdoor power equipment is discussed, along with outdoor power equipment configured to be stored within the case. One example embodiment comprises a case for storing outdoor power equipment, comprising: a top portion; and a bottom portion movably connected to the top portion, wherein the bottom portion has one or more openings to allow one or more wheels of an outdoor power equipment to protrude through the one or more openings; wherein the top portion and the bottom portion are configured to substantially enclose the outdoor power equipment in a closed configuration.

A mower including a handle assembly, a grip moveable relative to the handle assembly, a sensor operable to generate an output signal based on a position of the grip relative to the handle assembly, a drive assembly, and a controller coupled to the sensor and the drive assembly. The controller receives the output signal and controls the drive assembly according to the output signal.

A grounding body may be mounted on a cutting blade shaft of a grass cutter. The grounding body may include a mounting part for mounting the grounding body on the cutting blade shaft, wherein a cutting blade is mounted on the cutting blade shaft to be positioned above the grounding body; and a main body coupled to the mounting part and configured to contact a ground. The main body may include a first main body constituted of a first resin; and a second main body constituted of a second resin different from the first resin.

A grounding body may be mounted on a cutting blade shaft of a grass cutter. The grounding body may include a mounting part for mounting the grounding body on the cutting blade shaft, wherein a cutting blade is mounted on the cutting blade shaft to be positioned above the grounding body; and a main body coupled to the mounting part and configured to contact a ground. The main body may include a first main body constituted of a first resin; and a second main body constituted of a second resin different from the first resin.

A low-energy blade system having a quick-change attachment for a lawn maintenance tool is provided. The low-energy blade system requires a reduced amount of energy to rotate the blade system. The blade system includes a shell, a mounting plate attached to the shell, a plurality of quick-attach mechanisms, and a separate cutting blade attachable to each of the quick-attach mechanisms. Each quick-attach mechanism allows a cutting blade to be attached to the mounting plate without the need for external tools, such as screwdriver, wrench, ratchet, or the like.

A rotator includes a supporting case and a bobbin. The supporting case includes a cylindrical portion, a flange portion extended from the cylindrical portion, and a plurality of extension holes provided through the flange portion. An inner peripheral surface of the bobbin is removably abutted onto an outer peripheral surface of the cylindrical portion. A string trimmer line with flexibility is wound around an outer peripheral surface of the bobbin. Both end portions of the string trimmer line wound around the outer peripheral surface of the bobbin are extended radially outward through two extension holes selected from a plurality of extension holes.