Things You'll Need:
- Airtight bag or container
- Refrigerator
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Step 1
Let your battery run down to about 40% charge. Lithium ion batteries are used in the most recent crop of cell phones, and they depreciate quicker when stored at full charge.
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Step 2
Store your battery in an airtight container or bag. This will keep out moisture that may damage or otherwise reduce the life of your battery.
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Step 3
Store your battery in the refrigerator. A cool place provides optimal storage for cell phone batteries.
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Step 4
When you are ready to use your stored battery, leave it outside the refrigerator for an hour before using. Cell phone batteries cannot operate at refrigerated temperatures.
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Step 5
Clean the battery contacts on the battery and on the phone with rubbing alcohol. This permits maximum energy transfer between the battery and your phone.



















