Which device contains high current contacts that connect the battery to the cranking mortor?

The device that contains high current contacts connecting the battery to the cranking motor is the starter relay or starter solenoid. When the ignition key is turned, the solenoid activates, closing the high-current contacts and allowing electrical current to flow from the battery to the cranking motor, which starts the engine. This component is crucial for the efficient operation of the starting system in vehicles.