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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 ?
Furthermore, compared to the Galaxy Note 5's 3,220 milliamp-hour
A standard 600 milliamp-hour battery in most radios provides about eight hours of service; an extended 1,000 milliamp-hour battery provides about 12 hours of service.
The larger-sized iPhone 6L is said to be powered by a 2,915 milliamp-hour (mAh) battery while the smaller 4.7-inch iPhone 6 will be packed with 1,810 milliamp-hour-battery.