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Battery life when completely off

Last response: in Laptops & Notebooks
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November 21, 2011 12:54:31 AM

Before I powered down, the battery was at 20%. When I came back 24 hours later, the battery light was flashing and it couldn't power up. So I would like to ask is it possible for the battery to deplete even when its complete turned off or did someone use it?
a b D Laptop
November 21, 2011 1:58:23 AM

if the setting put monitor on sleep but leave hdd working that drain battery power,but to be shure that battery is still good charge it
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November 21, 2011 2:22:08 AM

If the battery is pretty old - more than a couple of years, that is not unusual behavior.
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November 26, 2011 4:13:10 PM

Self discharge is a known phenomenon for Li-on batteries.. however, 20% in one night seems a bit high. Are you sure your computer was completely shut off? If so, your battery is probably old and needs to be replaced.
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