ampere-hour
noun
am·pere-hour
ˈam-ˌpir-ˈau̇(-ə)r 
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
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
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
IEEE Spectrum, 10 Dec. 2024
Each battery brings 48 volts, 17.5 ampere-hours, and 840 watt-hours.
—IEEE Spectrum, 16 Feb. 2024
Cite this Entry
“Ampere-hour.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ampere-hour. Accessed 12 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share