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Commonly used to measure the capacity of industrial batteries. An
ampere-hour (abbreviated as Ah or A-h) is a unit of electric charge. One
ampere-hour is equal to 3600 coulombs (ampere-seconds), and is the amount
of electric charge transferred by a steady current of one ampere for one
hour. A current of one amp for one hour would be one amp-hour; a current of
3 amps for 5 hours would be 15 AH.
The ampere-hour is a unit frequently used in
measurements associated with electrochemical proceses such as
electroplating and electrical batteries. Although it is not a direct
measure of the energy in a battery (like the joule (J) or watt-hour (Wh)),
it is a common rating of how long a battery will last (or in the case of a
rechargeable battery, how long it will last when fully charged).
The commonly seen milliampere-hour (mAh) is equal to
3.6 coulombs.
Additional
information:
FR: capacité (d'un accumulateur)
Quantité d'électricité (charge électrique),
généralement exprimée en ampères-heure (Ah), qu'une batterie complètement chargée
peut débiter dans des conditions spécifiées
DE: Kapazität (einer galvanischen Zelle)
ES: capacidad (de una batería)
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