Abstract: A portable power supply includes a housing with a power source and at least one outlet, a frame surrounding the housing, and a handle coupled to the frame. The handle has a grip, an actuator, and a tube slidable relative to the frame, with an elongated rigid member disposed in the tube. The rigid member moves along the tube upon actuation of the actuator. A lock assembly, including a lock housing, a wedge member, and a pin member, is coupled to the end of the rigid member. The lock assembly is configured to secure the portable power supply in a desired position, providing a convenient and portable source of power.