Prior to the Invasion of Normandy, the battery was subject to frequent aerial bombardments but it was still operational on D-Day, 6 June 1944. On this day, the battery was engaged in combat with the Allied naval and landing forces on Utah Beach. During the course of the battle, it sank the USS Corry and damaged several other ships. The battery came under attack from the American 4th Infantry Division on 7 June. Under the leadership of Walter Ohmsen, the crew of the battery defended itself until 11 June. On 12 June, soldiers of the 9th Infantry Division, started their attack but found only an empty evacuated battery.