watt-hour
noun
: a unit of work or energy equivalent to the power of one watt operating for one hour
Examples of watt-hour in a Sentence
Recent Examples on the Web
It's powered with a 720-watt-hour battery, which Rad Power estimates will get you to over 100 km (65 miles) of range at low assist settings.
—
John Timmer, ArsTechnica, 12 Aug. 2025
The energy density, or the amount of energy a battery can store, is measured in watt-hours per kilogram (Wh/kg).
—Stephanie Pearson, Wired News, 8 Aug. 2025
Its energy density, exceeding 900 watt-hours per liter in internal tests, is estimated to be roughly 20 percent greater than that of current major smartphone-model batteries, the company says.
—IEEE Spectrum, 30 July 2025
The higher the watt-hour rating, the more energy the battery can store.
—Ken Colburn, AZCentral.com, 21 July 2025
The Power 2000 packs 2,048 watt-hours of juice in a carry-on-sized package.
—Joe Salas
july 04, New Atlas, 4 July 2025
Such a unit should yield 15-45 watt-hours of energy per day, though this is wildly variable depending on conditions.
—David Hambling, Forbes.com, 2 July 2025
The story mentions some rough estimates on the watt-hours used to execute a text, image, and video prompt on some models.
—Jeff Marks, CNBC, 26 June 2025
According to a Goldman Sachs report on data center power, a Google search consumes 0.3 watt-hours of electricity; one ChatGPT search consumes 2.9 watt-hours.
—Emily Forlini, PC Magazine, 22 Apr. 2025
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John Timmer, ArsTechnica, 12 Aug. 2025
The energy density, or the amount of energy a battery can store, is measured in watt-hours per kilogram (Wh/kg).
—Stephanie Pearson, Wired News, 8 Aug. 2025
Its energy density, exceeding 900 watt-hours per liter in internal tests, is estimated to be roughly 20 percent greater than that of current major smartphone-model batteries, the company says.
—IEEE Spectrum, 30 July 2025
The higher the watt-hour rating, the more energy the battery can store.
—Ken Colburn, AZCentral.com, 21 July 2025
The Power 2000 packs 2,048 watt-hours of juice in a carry-on-sized package.
—Joe Salas
july 04, New Atlas, 4 July 2025
Such a unit should yield 15-45 watt-hours of energy per day, though this is wildly variable depending on conditions.
—David Hambling, Forbes.com, 2 July 2025
The story mentions some rough estimates on the watt-hours used to execute a text, image, and video prompt on some models.
—Jeff Marks, CNBC, 26 June 2025
According to a Goldman Sachs report on data center power, a Google search consumes 0.3 watt-hours of electricity; one ChatGPT search consumes 2.9 watt-hours.
—Emily Forlini, PC Magazine, 22 Apr. 2025
Cite this Entry
“Watt-hour.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/watt-hour. Accessed 10 Sep. 2025.
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