am·​pere-hour ˈam-ˌpir-ˈau̇(-ə)r How to pronounce ampere-hour (audio)
 also  -ˌper-
: a unit quantity of electricity equal to the quantity carried past any point of a circuit in one hour by a steady current of one ampere

Examples of ampere-hour in a Sentence

Recent Examples on the Web Each battery brings 48 volts, 17.5 ampere-hours, and 840 watt-hours. IEEE Spectrum, 16 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ampere-hour.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1883, in the meaning defined above

Time Traveler
The first known use of ampere-hour was in 1883

Dictionary Entries Near ampere-hour

Cite this Entry

“Ampere-hour.” Dictionary, Merriam-Webster, Accessed 17 Jun. 2024.

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