a unit of electric charge noting the amount of electricity transferred by a current of one ampere in one hour, equal to 3600 coulombs.
Abbreviation: Ah, amp-hr, amp. hr.
Historical Examples

One ampere-hour is simply another way of saying 3,600 coulombs.
Hawkins Electrical Guide, Number One Nehemiah Hawkins

It should register in amperes, one-eighth of the ampere-hour capacity of the battery, as already explained.
Electricity for the farm Frederick Irving Anderson

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 a.h.


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