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

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.

If a battery gives its rated ampere-hour capacity on discharge, we do not care particularly how the voltages of the individual positive and negative groups change.

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

The cheapest 6 volt storage battery on the market has a 20 to 40 ampere-hour capacity and sells for $13.00.

From The Radio Amateur's Hand Book by Collins, A. Frederick (Archie Frederick)

This charging rate, for 8 hours should be, as we have seen, one-eighth of the ampere-hour capacity of the battery.

From Electricity for the farm Light, heat and power by inexpensive methods from the water wheel or farm engine by Anderson, Frederick Irving

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.