Battery | Composition, Types, & Uses | Britannica
https://www.britannica.com/technology/battery-electronics
WEBApr 10, 2024 · battery, in electricity and electrochemistry, any of a class of devices that convert chemical energy directly into electrical energy. Although the term battery, in strict usage, designates an assembly of two or more galvanic cells capable of such energy conversion, it is commonly applied to a single cell of this kind.
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