+A **Watt Hour** (Wh) measures [Energy](/wiki/energy), quantifying how much power, one [Watt](/wiki/watt), is used over one hour. It is a fundamental unit for sizing batteries and tracking electricity consumption.
+## See also
+- [Kilowatt Hour](/wiki/kilowatt_hour)
+- [Joule](/wiki/joule)
+- [Power](/wiki/power)
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