I am trying to install a new Skylla 12-70 (1) battery charger; It appears that the battery cables are secured under 10mm 'nylock' nuts that are on studs? They are very tight from the factory; we we remove these and secure the cables with them? I always treated Nylock nuts as one time devices but there was no other hardware in the box and they surely don't want us to attach the batteries ON TOP of those nuts. Can't find anything about this.