Located on the Noirmont Point headland dominating the south coast of the Island,  Naval Batterie Lothringen was originally armed with three 15cm naval guns (later four) which fired a 44kg shell and had a range of 18 kilometres. Across the headland, most of the supporting infrastructure for these guns still exist, including a command centre, a direction and range finding tower, anti-aircraft and other defence positions, as well as ammunition stores, searchlights and shelters for their crews.

Although the Battery never faced a large scale Allied attack, it was involved in a number of engagements against Allied ships and aircraft, including a particularly fierce fire-fight against US motor torpeodo boats in August 1944.

Today the Battery Command Bunker, the Naval Direction and Range-Finding Tower and other parts of the Battery are preserved by the Channel Islands Occupation Society and open to the public.