ampere-hour

American  

[am-peer-ouuhr, -ou-er, am-peer-] / ˈæm pɪərˈaʊər, -ˈaʊ ər, æmˈpɪər- /

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.

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ampere-hour British  

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

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Etymology

Origin of ampere-hour

First recorded in 1880–85

Example Sentences

The large hand on the ampere-hour meter reaches 12, or 2.

From The Automobile Storage Battery Its Care And Repair by Witte, Otto A.

When the battery voltage drops to 1.7 per cell on discharge before the battery has delivered its rated ampere-hour capacity, at the 5-hour rate when a discharge test is made.

From The Automobile Storage Battery Its Care And Repair by Witte, Otto A.

The ampere-hour capacity of these batteries varies from 6 ampere hours to 4,000 ampere hours, respectively, when used at an average 8-hour discharge rate.

From Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. by McMeen, Samuel

Therefore, by increasing the number of plates and the areas of their surfaces, the ampere-hour capacity of the cell is correspondingly increased.

From Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc. by McMeen, Samuel

The unit in which capacity is measured is the ampere-hour.

From The Automobile Storage Battery Its Care And Repair by Witte, Otto A.