ampere-hour

[am-peer-ouuhr, -ou-er, am-peer-]

noun

Electricity.

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

ampere-hour

noun

1. a.h.. 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

Word History and Origins

Origin of ampere-hour¹

First recorded in 1880–85