In military science, a battery is a group of artillery or cannon, so grouped in order to facilitate battlefield communication and the organization of barrages. In modern military organization, the military unit typically has 6 or 8 howitzers and 100 - 200 personnel. They are subdivided into:
- Field batteries, equipped with 105 mm calibre howitzers or equivalent;
- Medium batteries, equipped with 155 mm calibre howitzers or equivalent;
- Heavy batteries, which are equipped with guns of 203 mm or more calibre, but are now very rare; and
- Various more specialised types, such as anti-aircraft, missile, or Multiple Launch Rocket System batteries.
Groupings of mortarss are referred to as platoons rather than batteries.
See also: Battery Park (New York)