A hen kept in a small cage or battery.

(physics) A form of electrochemical storage cell in which electrolyte flows between connected tanks; the direction of flow being opposite when the cell is charging and discharging; used to store electricity from intermittent suppliers such as wind farms.

(archaic) A battery; a voltaic cell.

(law, idiomatic) The combination of two violent crimes: assault (the threat of violence) and battery (physical violence). This legal distinction exists only in jurisdictions that distinguish assault as threatened violence rather than actual violence.

(weaponry) In firearms and artillery, having a condition in which a live round is at least partially in the firing chamber and capable of being fired, but is not properly secured by the usual mechanism of that particular weapon.

(baseball) One who plays in the same battery, either the pitcher or the catcher.

A small cage in which a hen is kept to lay eggs.

A power cell having potassium hydroxide as its electrolyte, a zinc / manganese dioxide cell.

A portable battery, fitted with cables and a charger, used to charge a dead battery, especially in a car.

(electronics, of a device) Using a battery to maintain operation when not powered by the main electrical supply (e.g. during a blackout).