ampere-hour

noun

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
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That includes specific energy of at least 330 watt-hours per kilogram, a volumetric density of at least 842 watt-hours per liter, and a proven range of up to 1,200 cycles in 4 to 10 ampere-hour cell formats. IEEE Spectrum, 10 Dec. 2024 Each battery brings 48 volts, 17.5 ampere-hours, and 840 watt-hours. IEEE Spectrum, 16 Feb. 2024

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.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ampere-hour. Accessed 30 Dec. 2024.

Last Updated: - Updated example sentences
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