But sereously, what do you mean by batteries?
battery |ˈbatərē|
noun ( pl. -teries)
1 a container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power : [as adj. ] battery power.
2 a fortified emplacement for heavy guns.
• an artillery subunit of guns, men, and vehicles.
3 a set of similar units of equipment, typically when connected together : a battery of equipment to monitor blood pressure.
• an extensive series, sequence, or range of things : children given a battery of tests.
4 Law the crime or tort of unconsented physical contact with another person, even where the contact is not violent but merely menacing or offensive. See also assault and battery .
5 ( the battery) Baseball the pitcher and the catcher in a game, considered as a unit.
ORIGIN Middle English : from French batterie, from battre ‘to strike,’ from Latin battuere. The original sense was [metal articles wrought by hammering,] later [a number of pieces of artillery used together] ; on this was based a sense [a number of Leyden jars connected up so as to discharge simultaneously] (mid 18th cent.), from which sense 1 developed. The general meaning [a set or series of similar units] ( sense 3) dates from the late 19th cent.
