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AA Batteries 1

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coventrian

Mechanical
May 10, 2000
3
Does anyone know the shelf life of a AA Battery. How soon does the battery start to degrade? How long before it is out of spec?<br><br>Thanks
 
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All batteries write shelf life on it self. If storage was good, it's spec good for until this date.<br>
 
Not all batteries have the shelf life on the label.<br><br>You don't mention the construction of the battery.&nbsp;&nbsp;That's the governing factor.&nbsp;&nbsp;Rules of thumb:<br><br>Carbon&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6 months<br>Alkaline&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1 year<br>Mercury&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.5 years<br>Lithium&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6 years<br>Nickel-Cadmium&nbsp;&nbsp;2 weeks<br>Nickel-Hydride&nbsp;&nbsp;2-4 days<br>Lithium Ion&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ah...I don't know, they're too new.<br><br>Of course, we're assuming storage in ideal conditions.&nbsp;&nbsp;Cold helps some of these and hurts others for instance.&nbsp;&nbsp;<br><br>The shelf life is the time it takes to lose half the available power.&nbsp;&nbsp;The batteries will begin to degrade as soon as it's built.&nbsp;&nbsp;It also is non-linear.&nbsp;&nbsp;Some batteries lose a lot of power quickly then flaten out, and some hold for a long time and then just die.&nbsp;&nbsp;<br><br>If you want anything more specific than this, you have to check the manufacturers specifications for particular types.
 
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