Abstract: An electrical connector that quickly clamps to or releases from a battery st has a band comprised of a flexible loop and a portion of the band remote from the loop. A flexible arm swingably mounts to the remote portion of the band, and a lever is journalled to one end of the arm. A leg of the lever connects to the loop, and the loop biases the leg away from the post. The electrical connector has a clamping configuration where the one end of the pivot arm is at a position relatively near the flat segment. The electrical connector has a post-releasing configuration where the one end of the arm is at a position relatively far from the flat segment. When the electrical connector goes from the clamping configuration to the release configuration, the one end of the arm swings through an intermediate position between its near and far positions. The arm is more elastically deformed in the intermediate position than in either the near or far positions.