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: Magic
by cerbie on Tue 9th Feb 2010 06:00 UTC in reply to "Magic"
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Batteries are not solid state parts. Abuse of the battery during charge or discharge (including unknowingly using dirty power lines, and over-discharging it too often) will hurt its capacity and service life. Charging too often will hurt its capacity and service life. Leaving it stored with a full charge will hurt its capacity and service life. Lithium-based rechargeable cells also lose capacity from age, regardless of how they are used (yes, I'm giving Apple the evil eye, here).

To top all of that off, there are variations between each cell and each battery pack that cannot be discerned until it is well worn.

Commodity Lithium-based battery technology is pretty much bleeding edge science with penny pinching thrown in for good measure.

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