Specifications Of Alkaline Batteries Chemistry In an alkaline battery, zinc is the negative electrode and the positive electrode manganese (IV) oxide. Zinc and manganese (IV) oxide are consumed during discharge. Equal amounts of OH- are consumed and the alkaline electrolyte of potassium hydroxide remains.
Capacity The capacity of an alkaline battery is strongly dependent on the load. An AA-sized alkaline battery may have a capacity of 3000 mAh at low drain, but at a load of 1 ampere the capacity is around 700 mAh. Steadily the battery declines after use, so the total usable capacity depends on the cut off voltage.
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Voltage A fresh alkaline cell has a voltage of 1.5 V. With a series of cell multiple voltages may be achieved. The effective zero load voltage of non discharged alkaline battery varies from 1.50 to 1.65 V. The average voltage under load depends on level of discharge. A fully discharged cell has a remaining voltage in the range of 0.8 to 1.0 V.
Current The amount of current a battery delivers is proportional to its physical size. As internal surface area of cell increases the internal resistance decreases. Larger cells can deliver more current. Powerful flashlights and portable stereos, require a current of several amperes, will require large sized cells to handle the increased load.
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KC electronics KC Electronic Distributors, founded in 1982, is dedicated to fulfill client’s needs for wire, batteries, connectors and other items. It is one of the reputed industrial alkaline battery distributors with a focus on quality. They purchase material from topquality manufacturers, and also offer our customers a wide range of custom services.