The AA alkaline cell with a low voltage of around 1 volt can be used for low-current demanding devices for some time. If the voltage falls below 1 volt, it needs to be replaced. Generally, AA alkaline cell functions satisfactory up to 1.1 volts or 1 volts. This happens because of a voltage drop caused by the current demand and internal resistance of the cell. The unique circuit design permits a minimum voltage, and below the minimum voltage it does not work, or it gives an unsatisfactory performance. The cell voltage also depends on the circuit. Type of Batteries and their Voltage Type of Cell Battery Voltage(V) Alkaline Cell 1.5 Carbon-Zinc Cell 1.5 Nicad Cell 1.2 ( 1.4 Volts after Charging) NiMH Cell 1.2 ( 1.4 volts after charging) The cell voltage, capacity, and discharge rating depend on the cell chemistry however, an AA cell usually only takes 1.2-1.5 V unless specified by the manufacturer. A 1.5-volt battery is the same size as AA batteries, but is rated for lower voltage to suit a device with a lighter power. It may be either a primary cell (disposable) or a rechargeable cell. An AA cell is a single electrochemical cell. Standard Name of AA-type battery IEC 60086 R6 ANSI C18 15 JIS Japan UM-3 Standard Cell D-14 United Kingdom HP7 or pen cellĪA batteries have widespread use in portable electronic devices. AA batteries are called by different names as given in the below table. The AA battery (or double-A battery), a dry-type cell, is the standard-size single battery. However, they slowly lose their voltage throughout their use and cause a reduction in the device performance over time. On the other hand, Alkaline batteries have a higher initial voltage as compared to AA batteries. The AA batteries can maintain a voltage of around 1.0 volts throughout their use. The electrical appliance and gadgets usually designed to work within the range of 0.9 to 1.5V use AA batteries. Generally, AA batteries have an initial voltage of around 1.2V.
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