watt-hour
1
4.2
- noun
- /ˈwɒtˌaʊər/
- Specialized
:
vatio-hora
- The new device has a battery rated at 40 watt-hours, indicating how much energy it can store.
- watt-hour battery
- watt-hours per kilogram
- 300 watt-hours
So then if it's for, if you have it on for an hour, it's one Watt Hour.
- So then if it's for, if you have it on for an hour, it's one Watt Hour.
Examples
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Her laptop's battery can sustain a usage of 60 watt-hours before needing a recharge.
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Current OLPC has a 20 Watt-hour battery made of biodegradable, non-poisonous LiFePO4.
Blog text (22) -
That's 450 trillion watt hours.
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Photos of 'iPad Mini' battery reveal 16.7 watt-hour capacity.
Blog text (13) -
In fact, the battery in the new iPad is 70 percent larger than its predecessor and holds 42 watt-hours as compared to 25 watt-hours.
Blog text (24) -
Current electric car battery packs have energy density in the 100-200 watt-hours/kilogram range, and prices over $600 per kilowatt-hour.
Blog text (10) -
In terms of watt-hours, small appliances like a blender, toaster, even my electric grinder, chop saw, table saw, and my wife's hair dryer are doable.
Blog text (23) -
To fully charge a 100 watt-hour power bank, it takes approximately 3 hours using a standard charger.
How Much Energy
- Specialized
1
5.1
- Specialized
8
3.2
- Specialized
1
4.2
- Specialized
Surface Forms
Morphology
Etymology
Watt-hour comes from watt, named after the engineer James Watt and meaning 'power', and hour, meaning 'one hour'. So a watt-hour is 'power used for one hour', which is why it measures 'energy'.