But as was discussed you can have too many grounds.
This usually prompts a discussion about how welding cable isn't intended for oily environments and the high heat of an engine bay. My local battery shop sells Carolprene cable for use as battery cable. See attachment, I've no worries from using this cable anywhere on a vehicle. I use cast lugs (no open ends) with adhesive lined Heat-Shrink to bradge between the cable's insulation and the body of the lug.