A battery is an assembly of one or more [galvanic cells](/entry/tc-ec-cell-g) that can be used to power electrical devices using stored energy. The cells are packaged in a container that provides external electrical external connections, usually a positive and a negative terminal.

TechConcept

Battery

Standardized battery

D Battery

AA Battery

A galvanic cell, also known as a voltaic cell, is an [electrochemical cell](/entry/tc-ec-cell) that generates electrical energy through chemical reactions, specifically redox reactions. Galvanic cells are the building blocks of [batteries](/entry/tc-battery).

Galvanic cell

C Battery

A23 Battery

A **standardized battery** is a [battery](/entry/tc-battery) that is designed and manufactured according
            to an international standard. The standard will usually specify the battery's size and shape. Often the
            standard will also specify the nominal voltage and the exact battery chemistry as well.

9-volt Battery

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Has types	TCStandardized battery
Interlingual Index	i50578
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Wikidata QID	Q267298
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