Tra từ battery - Từ điển Oxford Advanced Learner 8th

bat·tery [battery batteries] BrE [ˈbætri] NAmE [ˈbætri] BrE [ˈbætəri] NAmE [ˈbætəri] noun (pl. bat·teries)
1. countable a device that is placed inside a car engine, clock, radio, etc. and that produces the electricity that makes it work
•to replace the batteries
•a rechargeable battery
•battery-powered/-operated
•a car battery
• The battery is flat (= it is no longer producing electricity).
2. countable ~ (of sth) a large number of things or people of the same type
• He faced a battery of questions.
•a battery of reporters
3. countable (technical)a number of large guns that are used together
4. countable (BrE) (often used as an adjective)a large number of small ↑cages that are joined together and are used for keeping chickens, etc. in on a farm
•a battery hen
•battery eggs
compare ↑free-range
5. uncountable (law)the crime of attacking sb physically
see also ↑assault and battery
see recharge your batteries at ↑recharge

Word Origin:
Middle English: from Old French baterie, 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’, which led to the meaning ‘a number of Leyden jars connected up so as to discharge simultaneously’ (mid 18th cent.), giving rise to sense 1. The more general meanings date from the late 19th cent.

Example Bank:
•After about six hours, the battery will run down.
•Don't leave the radio on— it'll drain the car battery.
•He was arrested and charged with assault and battery.
•I had to answer a whole battery of questions.
•Is the battery connected correctly?
•The battery compartment is at the back of the unit.
•The car won't start— the battery's flat.
•The lights have rechargeable battery packs.
•The machine can also run on batteries.
•With our product you get longer battery life.
•a small battery-powered car
•intensive battery farming methods
•A sample of the school population was given a battery of tests examining reading ability.
•A whole battery of measures was tried in an attempt to get them to give up cigarettes.
•He faced a battery of awkward questions.
•He was charged with battery after a fight at a night club.