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 sequentially provide power to the riding lawn mower.

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.

A visual positioning system, comprising a first visual sensor (501), a second visual sensor (502), and a position obtaining unit (503), wherein the first visual sensor (501) is used for obtaining a first image (G11) of a first position (A) of a target apparatus (7), a second visual sensor (502) is used for obtaining a second image of a second position (B) of the target apparatus (7), and the position obtaining unit (503) is used for obtaining position information of the target apparatus (7) according to the first image (G11) and the second image. Further disclosed are a battery swapping device and a battery swapping control method. Relatively high positioning accuracy is obtained in a visual manner, and accurate positioning between the battery swapping device and a vehicle for battery swap is implemented.

A visual positioning system, comprising a first visual sensor (501), a second visual sensor (502), and a position obtaining unit (503), wherein the first visual sensor (501) is used for obtaining a first image (G11) of a first position (A) of a target apparatus (7), a second visual sensor (502) is used for obtaining a second image of a second position (B) of the target apparatus (7), and the position obtaining unit (503) is used for obtaining position information of the target apparatus (7) according to the first image (G11) and the second image. Further disclosed are a battery swapping device and a battery swapping control method. Relatively high positioning accuracy is obtained in a visual manner, and accurate positioning between the battery swapping device and a vehicle for battery swap is implemented.

A portable power system assembly that includes a portable power system (PPS) and a dock. The dock is mountable to a vehicle and includes a PPS holding tray and an actuator arm, with the actuator arm capable of being pivoted from a first position to a second position, the holding tray including a PPS receiving station and a PPS securing station, and the securing station including electrical supply terminals. The PPS includes a housing with opposing ends, there being mating electrical terminals at one end and at least one abutment region at the other end for engagement with the actuator arm. The actuator arm engages with the abutment region of a PPS in the receiving station to move, during pivoting of the actuator arm from its first position to its second position, the PPS from the receiving station to the securing station for mating electrical engagement of the PPS and dock electrical terminals, and, in its second position, the actuator arm engages with the PPS in the securing station to releasably lock the PPS in the securing station.

A portable power system assembly that includes a portable power system (PPS) and a dock. The dock is mountable to a vehicle and includes a PPS holding tray and an actuator arm, with the actuator arm capable of being pivoted from a first position to a second position, the holding tray including a PPS receiving station and a PPS securing station, and the securing station including electrical supply terminals. The PPS includes a housing with opposing ends, there being mating electrical terminals at one end and at least one abutment region at the other end for engagement with the actuator arm. The actuator arm engages with the abutment region of a PPS in the receiving station to move, during pivoting of the actuator arm from its first position to its second position, the PPS from the receiving station to the securing station for mating electrical engagement of the PPS and dock electrical terminals, and, in its second position, the actuator arm engages with the PPS in the securing station to releasably lock the PPS in the securing station.

A power storage device (4) includes a power storage unit (1211) including a plurality of cells, and a BMU (1212) configured to control the power storage unit (1211). The BMU (1212) includes an upper limit power acquisition unit (23) configured to acquire, based on a SOC and a temperature of the power storage unit (1211), an upper limit power that is an upper limit of a power output from the power storage unit (1211) or a power input to the power storage unit (1211).

A marine drive is for propelling a marine vessel. The marine drive has a propulsor configured to generate a thrust force in a body of water, an electric motor which powers the propulsor, a battery having a battery port for outputting battery power, a supporting frame which supports the marine drive relative to marine vessel, the supporting frame having a frame interior which retains the batter, and a cowling on the supporting frame. The cowling has a first cowl portion and a second cowl portion which is movable relative to the first cowl portion into a closed position enclosing the supporting frame and the battery in a cowling interior and alternately into an open position providing access to the cowling interior enabling insertion and removal of the battery.

A marine drive is for propelling a marine vessel. The marine drive has a propulsor configured to generate a thrust force in a body of water, an electric motor which powers the propulsor, a battery having a battery port for outputting battery power, a supporting frame which supports the marine drive relative to marine vessel, the supporting frame having a frame interior which retains the batter, and a cowling on the supporting frame. The cowling has a first cowl portion and a second cowl portion which is movable relative to the first cowl portion into a closed position enclosing the supporting frame and the battery in a cowling interior and alternately into an open position providing access to the cowling interior enabling insertion and removal of the battery.

The present application relates to a battery swap apparatus and a battery swap system for replacing a battery of an electrical device, which comprises: a movable base configured to drive the battery swap apparatus to move; two battery swap mechanisms arranged on the movable base, the two battery swap mechanisms being configured to carry two batteries so that the battery swap apparatus replaces the two batteries at the same time; and an exchange mechanism arranged on the movable base, the exchange mechanism being configured to drive the two battery swap mechanisms to exchange positions. The battery swap apparatus provided by the present application can replace two batteries at the same time, the number of times of traveling in the battery swap process is small, and the battery swap efficiency is high, which solves the problem of low battery swap efficiency at present.