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English definition of “battery”

battery

noun [C] (ELECTRICAL DEVICE)   /ˈbæt̬·ə·ri/
a device that produces electricity to provide power for radios , cars , toys , etc.: What size battery do you need for the alarm clock ? physics A battery is also any device that produces electrical energy from chemical energy .
(Definition of battery noun (ELECTRICAL DEVICE) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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