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watt-hour
(redirected from Watt hour)

    Also found in: Acronyms, Wikipedia 0.06 sec.

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.
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This BA 8180/U is a 12/24 Volt, 800 watt hour, 56Ah primary (non-rechargeable) zinc-air battery pack.
New zinc-air gives you a choice by PS, the Preventive Maintenance Monthly
After extensive technical research and development work with its joint venture partner, HyPower believes that the H2 Reactor's electrolysis process is technologically the most efficient to date with an unprecedented ratio of 1 liter of hydrogen production to an electrical input of 1 watt hour.
HyPower Sets Date for Live Demonstration of the H2 Reactor by Business Wire
After extensive technical research and development work with its joint venture partner, HyPower believes that the H2 Reactor's electrolysis process is technologically the most efficient to date with an unprecedented ratio of 1 liter of hydrogen production to an electrical input of 1 watt hour.
HyPower to Begin Testing on Ford Engine by Business Wire
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