I was looking at the battery in my 2010 Wagon last night which is mounted in the rear trunk compartment and spotted a peculiar battery cable lug attached to the positive post only. It looks like some kind of quick disconnect lug that tightens on the battery post with a 90 degree turn of a plastic (or metal) lever. The negative cable lug looks conventional with a nut to tighten. Can anyone comment on this weird looking positive cable lug?? Does it tighten/loosen via this maybe 2" long lever?? Does the lever rotate sideways or up & down?? Looks like I would not want to break this lever if I ever remove the battery myself being integral to the lug.