Hello together A few weeks ago I got a digital battery charger for a new Exide battery. Problem is spark flight when I connect the charger minus cable to the Minus pole. Charger is not in the socket yet. Presumably it is because the charger turns on over the battery (display goes on). When connecting the Kfz side plus and minus cable is not a spark flight. Could here a simple light switch (snurinter switch) in the charger Minu The display only lights up when I press the switch. In the case of the negative cable, the amperes shouldn’t play a role for the switch?