Abstract: A battery connection comprises a battery post protruding from a battery and a battery cable terminal for clamping connection with the battery post. The battery post is an elliptical cylinder projecting perpendicularly from the surface of the battery, and the battery cable terminal has a mating elliptical clamping ring. When the clamping ring is fitted over the post and tightened therearound, the elliptical shapes of the post and terminal substantially prevent twisting of the terminal relative to the post and so inhibit loosening of the terminal. The smoothly curved, cornerless elliptical shape of the post allows the ring to slide around the perimeter of the post as the ring is tightened so that the normal contact force between the ring and the post is substantially constant around the perimeter thereof.

Abstract: A slide lock system allows one or more connector bodies to be mounted at various locations on a mounting surface. A plurality of parallel, uniformly spaced rails are formed on the mounting surface. The rails define a plurality of parallel, uniformly spaced channels which are open on one end and closed on the opposite end. A pair of parallel, spaced apart rails are formed on each connector body. The connector rail spacing is an integral multiple of the spacing between the channels on the mounting surface such that the connector rails are endwise inserted into the open end of any of the plurality of channels.