Linked by Thom Holwerda on Mon 8th Feb 2010 23:55 UTC
Windows The past few weeks or so, there's been a lot of interest in a supposed battery status report bug in Windows 7. After installing Windows 7, some users reported seeing "consider replacing your battery"-warnings in systems that appeared to be operating just fine on Windows XP or Vista. After extensive research, Steven Sinofsky has now explained on the Engineering 7 blog that the fault is not with Windows 7 - it really, really is your battery.
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RE[2]: Two issues
by smashIt on Tue 9th Feb 2010 17:21 UTC in reply to "RE: Two issues"
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When one cell in a mult-cell battery pack is completely discharged, you can often continue using the pack as it's still producing enough voltage to power your device. However, once a cell has discharged completely, continuing to run it in series with other cells will reverse-charge the cell which will eventually irreparably ruin it, making it a permanently-dead cell.

that was true for nicd and pb cells
modern lithium cells already die when deep-discharged (less than ~3v)
as great as their capacity is, as sensible they are...

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