(dated, electronics) A battery used to provide the plate voltage for a vacuum tube.

A battery whose purpose is, in addition to powering an electronic device, making the powered device permanently unusable once the energy runs out.

(historical, military, US) A group of cannons pulled by mules, used in 19th century warfare.

(psychology) The use of information from multiple batteries of tests in order to guide diagnostic decisions and to gain a fuller picture of an individual.

Several magnets placed with their like poles together, so as to act with great force.

plural of battery mate

A rechargeable battery used to power the electric motor(s) of a battery electric vehicle (BEV) or hybrid electric vehicle (HEV).

(automotive, of electrified vehicles) The standard 12V rechargeable automotive lead-acid battery or the stand-in battery for a standard 12V automotive battery found in internal combustion engined vehicles, typically used to power the typical 12V systems, the accessories, infotainment, automotive computer, and electronic systems.

(electronics, historical) An unspillable electrochemical battery whose cells use electrolyte soaked sand – typically used to test telegraph cables at sea.

plural of battery pack