amp-hour

noun

ˈamp-ˈau̇r How to pronounce amp-hour (audio)
-ˈau̇-ər

Examples of amp-hour in a Sentence

Recent Examples on the Web
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.
The Breeze battery provides a 13.4 amp-hour charge for a range of 70 miles, while the Pace features a slightly smaller 12.8 amp-hour pack for 60 miles of range. William Roberson, Forbes.com, 29 Apr. 2025 The 106 amp-hour cells feature a solid electrolyte infused with gel or liquid. IEEE Spectrum, 12 Mar. 2025 Those Continental mud-terrain tires measure 42 inches in diameter, the roof supports 1,400 watts of solar panels (that charge a 1,980 amp-hour lithium-ion battery pack), and 118 gallons of water capacity feed a shower, bathroom, and kitchen. Michael Van Runkle, Robb Report, 9 Jan. 2025 Batteries Samsung has increased the energy density of the 21700 cells employed in Rivian’s Standard Pack and Max Pack batteries from 50 amp-hours per cell to 53 amp-hours. Dan Carney, Popular Science, 12 June 2024 For both tests, DC discharge in amp-hours must be measured. Evan Williams, Ars Technica, 2 Jan. 2024 Milwaukee claims the pole saw’s 8 Ah (amp-hour) batteries offer more power, allowing the machine to run for longer time periods, but the run times are not listed on the website. Nor'adila Hepburn, Better Homes & Gardens, 25 Sep. 2023 Your purchase comes with two 24-volt, 4.0 amp-hour batteries and a dual-port charger to juice both batteries simultaneously. Brandon Russell, Popular Mechanics, 14 Aug. 2023 The kit also comes with two 20-volt, 2.0 amp-hour batteries, storage bags, and various accessories. Brandon Russell, Popular Mechanics, 29 Apr. 2023

Word History

First Known Use

1884, in the meaning defined above

Time Traveler
The first known use of amp-hour was in 1884

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Cite this Entry

“Amp-hour.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amp-hour. Accessed 28 May. 2025.

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