Power supply assembly for motorized vehicles

A vehicle having a plurality of wheels and elements, to drive at least one wheel to propel the vehicle is provided with a frame and a power supply assembly for delivering power to the drive elements. The power supply assembly includes a battery and a housing structure surrounding the battery. The power supply assembly is removeably supported on the vehicle frame. A latching mechanism is provided having a pivoting actuator. The actuator moves between a locking position and a release position. The actuator movement displacing a pin disposed in combination with the housing between a locking position, wherein the pin fixedly engages the power supply assembly to the frame, and a release position, wherein the pin disengages and permits the power supply assembly to be removed from the frame.