Bartery n. : Barter.

Example:
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Taxonomy
battery, cell, capacity, a battery, electrolyte, rechargeable batteries, chemistry, voltage, emf, discharge, electrodes, liquid electrolyte, energy density, self discharge, lead-acid battery, electricity, terminal voltage, chemical reactions.

Defination from the web:
battery or voltaic cell is a combination of many electrochemical Galvanic cells of identical type to store chemical energy and ... In 1800, Volta invented the battery by placing many voltaic cells in series, literally piling them one above the other. ...