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Why Battery rated in Ah (Ampere hour) and not in VA?

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تم إضافة السؤال من قبل Mahmoud Nabil , Facilities Maintenance Manager , Wadi Degla Clubs
تاريخ النشر: 2015/05/18
ahmed ali faris
من قبل ahmed ali faris , electromechanical manger , I Engineering Co.

Battery stores charge in the form of chemical energy and then converts it into electrical energy to utilize for a specific time. The amount of available charge is the capacity of a cell or battery which may be expressed in Ah (Ampere-hour). Moreover, in a charged battery, the numbers of molecules are limited to create a flow of electron in electric circuits, so, there must be a limited number of electrons in a cell/battery which they motivate through a circuit tofully discharge

alexander tabalanza
من قبل alexander tabalanza , Technical Assistant , Telesight Computer and Surveillance System

Ah(Amp hour) is the amount of energy charge in battery that will allow1 ampere of current to flow for1 hour

Rizwan Mughal
من قبل Rizwan Mughal , Senior Field Service Engineers , Tetra Pak

Ah is a Time Based Unit and VA is only a quantity of measurement 

Heavenly J John
من قبل Heavenly J John , National Head - Aftersales for Ford , Saud Bahwan Group

The Battery is a mere storage box of the Current and not Voltage. Hence the capacity of the battery is measured in terms of Ah and not VA

مستخدم محذوف‎
من قبل مستخدم محذوف‎

You go with Mr. Alexander and where VA is apparent power it can be applicable only for those system has power  factor. So it rated to Alternator, UPS, Transformer. (UPS has the Transformer)

Safi Ullah
من قبل Safi Ullah , Electrical Trainee Engineer , PESCO (Peshawar Electric Supply Company)

It means that a particular battery provides this much current for a given interval of time..............