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Old 12th March, 2005, 06:00 PM
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Gizmo Gizmo is offline
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As batteries age, they lose capacity; that's just the nature of the beast. Unless it lost significant capacity as a result of the recalibration, there is probably rather little you can do. If your brother's 'recalibration' caused it to actually lose run time, then here's what I would try:

1) Discharge that battery completely. I mean stone dead. Run it in the laptop until the laptop refuses to use it. After that, if you can sus out the power terminals on the battery, then you should build an apparatus that will allow you to discharge the terminals through a resistor (something like a 100 ohm 5 watt would be dandy). Let it set that way for a couple of days.

2) Now go through the battery's calibration procedure.
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