It will work just fine as long as you use one of the unswitched circuits. I assume you mean to say snipping off the leads of the battery tender pigtail, so you can just plug the battery tender in when desired, but not have those ring terminals on the battery proper. I do this, but with a BMW style power port as my 'pigtail' that I have mounted on the left, similar to the oem location for the cig plug on the right.