These two batteries constitute a single position, constructively connected. They were conceived in Esteban de Panón's project in the 18th century and finished in 1739.

Its construction is elongated and parallel to the coast, and its current configuration corresponds to the latest reform of O'Donnell's Plan of May 8th, 1862.

Their casemates are buried to protect them from enemy ships fire, leaving their backs open for better ventilation of gunpowder smoke. The ammunition dumps were buried and communicated through tunnels.

Its main characteristic is its privileged situation to control the port mouth. It has the consideration of Heritage of Cultural Interest, in accordance with current second additional provision of Historical Heritage Act.

Visible from the route of the Blue Trail in the Port of Cartagena.

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