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n. Abbr. A.h. or amp hr
The electric charge transferred past a specified circuit point by a current of one ampere in one hour.


(Units) a practical unit of quantity of electricity; the quantity that flows in one hour through a conductor carrying a current of 1 ampere. 1 ampere-hour is equivalent to 3600 coulombs. Abbreviation: a.h.


a unit of electric charge equal to the amount of electricity transferred by a current of one ampere in one hour. Abbr.: Ah, amp-hr, amp. hr.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ampere-hour - a unit of charge equal to 3600 coulombsampere-hour - a unit of charge equal to 3600 coulombs
charge unit, quantity unit - a measure of the quantity of electricity (determined by the amount of an electric current and the time for which it flows)
ampere-minute - a unit of charge equal to 60 coulombs
References in periodicals archive ?
Battery capacity refers to the total amount of electric current, in terms of ampere-hour (Ah), produced from the beginning to the end of the use of a battery, without charges during the course.
The newspaper noted that the Fledge HEV, which includes a 200 ampere-hour battery and a 1.
It also monitors or provides profile statistics, elapsed operation time, charge and discharge current, charge and discharge voltage, temperature, and ampere-hour accumulation.
Tenders are invited for Supply of dc regulated cv-cc power supply with ampere-hour meter cum control unit for electrolytic enrichment system, variable frequency multi foil ac power supply.
Under the terms of the contract, Johnson Controls said it will be required to supply modules that can be tested for abuse-tolerance, capacity, pulse power, calendar life and cycle life, with the initial product to comprise 12 ampere-hour cells.