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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 ?
The UL 1703-certified, thin-film Bosch Solar Module om-Si plus NA1110 modules can charge the bike's eight ampere-hour lithium-ion battery in just two and a half hours.
The Application Kit includes Altairnano's 24 volt, 50 ampere-hour battery module, a connection and control unit (CCU) including a battery management system, together with a NetBook computer configured to control and monitor the system performance.
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.
Assuming a 10% safety factor, the daily current consumption is 444 ampere-hour per day;
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.
Edison Minit-Charger notes how its sequential system can recharge - return ampere-hour capacity to a depleted battery - at a charge current level up to four times higher than conventional chargers.