Battery pole negative Designed for DIN A cone terminals with the following diameters: Positive

ve terminal: 19.5 mm at the base of the cone, 17.5 mm at the top of the cone. Negative terminal: 17.9 mm at the base of the cone, 15.9 mm at the top of the cone. The positive terminal is therefore always larger than the negative terminal! The DIN A cone terminal is the standard connection used in Europe for lead-acid car batteries.