One of the most desirable characteristics of alkaline batteries is their long shelf life. They last a lot longer than zinc-carbon batteries and lose their storage capacity in a very linear pattern. Duracell rates the battery life of its Procell line to have a 7 year shelf life. Here’s how they come up with that figure.
After one year of storage at room temperature alkaline cells will still provide 93-96% of their initial capacity.
Over five years of storage at an average storage temperature of 70 degrees these batteries will still deliver about 85% of their rated capacity. Here’s what the discharge curves look like.
If stored at higher temperatures than 70 degrees or in high humidity, this capacity will be reduced somewhat.
The ideal storage conditions for Duracell Procell batteries is 50 degrees F-70 degrees F degrees with no more than 65% relative humidity.
Here are the details directly from Duracell.
You can always be sure that any Procell battery you get from GoodBuyGuys.com is factory fresh and was made no more than six weeks before it is delivered to you. Your satisfaction is guaranteed and the expiration date is stamped right on the box.
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