max wrote:
Not really, without opening up the battery, and making a connection to the communications bus in the battery. At least I don't know of any way to send commands to the chip while it is in the laptop. You can recalibrate the chip by first charging the battery until the laptop says it is full, discharging it down to about 5%, and recharging it. (Check your laptop manual for the recommended discharge level for your laptop.) If you laptop has it, running the battery test will discharge it to the correct level. I have seen this in a couple of BIOS, and as a stand alone diagnostic disk or boot partition.Mikkel L. Ellertson wrote:Mike -- EMAIL IGNORED wrote:There is a chip in the battery that decides this. It is part of the charging circuitry. Because it controls charging, when it decides the battery is full, it will not charge any more.Interesting. But it still begs the question of how it decided that the "last full capacity" was in fact a full capacity.MikkelCan it be reset? Max
But this is probably not going to reset the full charge level. There is a lot of information on this on the web. If you search for rebuilding laptop batteries, you will probably find it. This is a common problem when replacing bad cells - you don't get a full cycle without resetting the chip. There is a Linux program that lets you "talk" to the chip using a serial port and a special cable.
Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
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