<p><strong>Noun, plural batteries</strong></p><ul><li>a combination of two or more cells electrically connected to work together to produce electric energy</li><li>any large group or series of related things: a battery of questions</li><li>Military: two or more pieces of artillery used for combined action</li><li>a tactical unit of artillery, usually consisting of six guns together with the artillerymen, equipment, etc., required to operate them</li><li>a parapet or fortification equipped with artillery</li><li>a group or series of similar articles, machines, parts, etc.</li><li>Baseball: the pitcher and catcher considered as a unit</li><li>Navy: (on a warship) a group of guns having the same caliber or used for the same purpose</li><li>the whole armament of a warship</li><li>Psychology: a series of tests yielding a single total score, used for measuring aptitude, intelligence, personality, etc.</li><li>the act of beating or battering</li><li>Law: an unlawful attack upon another person by beating or wounding, or by touching in an offensive manner</li><li>an instrument used in battering</li><li>Music: the instruments comprising the percussion section of an orchestra</li><li>any imposing group of persons or things acting or directed in unison: a battery of experts</li></ul>