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How long will a cell phone battery charge last

Last response: in Cell Phones & Smartphones
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November 7, 2011 6:34:20 PM

If I buy a spare battery for my Att Samsung s2 how long will the charge last if kept in briefcase and not used?
November 7, 2011 7:18:16 PM

About 10% a month, so I will recharge it once in a while if you want to use it as a spare swap battery.

But lithium ion battery naturally degrade on the maximum charge they can hold, so even if you don't use it, it will still become unusable due to inability to hold a charge (dead battery). But don't worry about it too much because it looks as if you always use the battery and run out, that is why you want a swap battery right?
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November 8, 2011 11:25:20 PM
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Forever as long as u dont drop it, get a short in it, or mess up the top metal piece u put in the phone :D 
November 18, 2011 11:39:30 PM

Best answer selected by michaelkahler2000.
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