B1noun1K

Battery

UK /["/ˈbætri//ˈbætəri/"]/US /["/ˈbætəri/"]/

Definition

a device that is placed inside a car engine, clock, radio, etc. and that produces the electricity that makes it work

In simple words: A device that stores energy to power things.

Examples

  • My phone battery died right before the meeting.
  • The battery in my remote control needs to be replaced.
  • She charged the battery overnight to make sure it would last all day.
  • The protest included a battery of speeches from various leaders.
  • The school conducted a battery of tests to assess student performance.
  • Make sure to check the battery level before heading out on your trip.
  • He felt a sense of accomplishment after passing the battery of challenges.

Usage notes

Commonly used in electronics. Not usually used in formal contexts like scientific papers; more appropriate for casual conversation or everyday writing.

Grammar pattern

standalone noun

Memory hint

Think of a 'battery' as a 'bat' storing energy for power.

Collocations

  • dead
  • flat
  • rechargeable
  • charge
  • recharge
  • drain
  • die
  • give out
  • go dead
  • power
  • life
  • failure
  • battery-operated
  • battery-powered
  • full
  • whole
  • battery of
  • a battery of tests
  • artillery
  • gun
  • howitzer

Synonyms

  • power source
  • accumulator
  • cell
  • energy storage
  • electrical supply

Antonyms

  • drain
  • depletion

Common mistakes

  • Confused with 'batteries' for both singular and plural forms.
  • Mispronounced the first syllable as 'bat' instead of 'bat.'
  • Used incorrectly when talking about energy sources other than power storage.