The Christiansholm Battery was constructed during the years 1887 – 1892.

Christiansholms Battery was the main construction in the Christiansholms Line. It also consisted of two other batteries on each side of the fort.
The battery was triangle-shaped and was surrounded of a wet moat.

On top of the battery there were three turrets (cuppolas) with short 15. cm guns. Range approximately 5 kilometres. There also were two pieces of 8mm. Mitrallieuse to protect the moat.
The throat of the fort was protected by two pieces of 9 cm. guns.

The two batteries beside the main battery were armed with each 4 pieces of 15 cm. guns. Range approximately 6,3 kilometres. These guns were donated after a fundraising among Danish women.

Christiansholms Battery was decommissioned in 1920.