Apparatus for connecting electrical circuit components; Apparatus for heavy current electrical engineering; Apparatus for low power electrical engineering; Apparatus for monitoring electrical components; Apparatus for recording electrical information; Apparatus for the testing of electrical circuits; Automotive electrical battery components; Battery packs; Batteries; Battery charging apparatus for vehicles; Circuit boards; Electrical batteries; Electronic circuits; Electrical circuit boards; Electronic control units; Electronic control units for vehicles; Electric power supply units; Electric power supplies for electronic apparatus; Electric power supplies being transformers for marine use; Electric power units; Military electronic control, monitoring and testing apparatus; Power distributors; Power units (batteries); Power controllers (electric); Power distributors (electrical); Power sources (batteries); Power supply apparatus (batteries); Computer software in relation to static energy systems, vehicle, vessel and equipment auxiliary power systems and electric vehicle traction battery systems