#65431

Clipped to the jack still ends up going through sheet metal. I personally have not had a problem over the years with both the Alpine and Tiger grounding to the sheet of the battery box and rear trunk bulkhead. I will say though that I welded a nut to the axle side of the trunk bulkhead to provide a bit better contact area and prevent the possibility of it pulling loose. And even with a heavy duty battery no problems have been seen