watt-hour

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Related to Watt-hours: Megawatt hour

watt-hour

[′wät ¦au̇r]
(electricity)
A unit of energy used in electrical measurements, equal to the energy converted or consumed at a rate of 1 watt during a period of 1 hour, or to 3600 joules. Abbreviated Wh.

watt-hour

A unit of work equal to 3,600 joules; equivalent to the power of 1 watt operating for a period of 1 hour.

watt-hour

The power utilization for one hour measured in watts. Abbreviated "Wh," it is widely used to rate how long it takes for a battery to discharge. For smaller batteries, a milliwatt-hour (mWh) rating is used. For example, a 500 mWh battery means it will release 500 watts at a specific voltage for one hour before it is discharged. See ampere-hour and watt.
References in periodicals archive ?
5-pound, 150 watt-hour conformal battery was born out of the necessity to keep radios networked without weighing soldiers down with perhaps a dozen disposable batteries per day.
Energy generation jumped from 400 to 800 watt-hours.
But to measure much smaller electricity use, such as a light bulb or hair dryer, it's more practical to use the unit watt-hour.
The rover collected 161 watt-hours of energy on the Martian day ending November 13.
The 320 watt-hours the system will produce daily means that on a
Definitions: A megawatt-hour (MWh) is one million watt-hours of electric energy or one megawatt of power used for one hour.
If you have a 200 amp-hour 12 volt battery, you will get 20 amp-hours at 120 volts (AC, DC, doesn't matter) because watts (rate of flow) and watt-hours stay the same.
This battery stores 220 watt-hours per kilogram and discharges up to 17 hours," says Licht.
The XRT is a 100 W, 110VAC / 12VDC power support system with over 2200 Watt-hours runtime.
Six N-Stor360 fuel canisters, providing 2200 Watt-hours (180 Amp-hours) of runtime
television sets require considerably more than 74 billion watt-hours of power per year to operate, iWatt estimates.