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Is there any way to modify the values of the laptop battery to make it fully charge? I assume that these values are stored in EEPROM.

I would like to know if there is any tool that can read/write the battery's EEPROM directly from any OS. On Linux I know there is a tool for UPS (apcsmart), but I don't know if it is possible to use it for laptop battery.

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So really, you're talking about a laptop with a good battery, but the BIOS thinks it is bad. So you want do so something to the BIOS to convince it that the battery is good? –  dsolimano Nov 14 '12 at 19:59
    
It is not the BIOS that manage the battery but the EEPROM chip in the battery itself. –  Francesco Nov 15 '12 at 6:08
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1 Answer

Try this http://wiki.laptop.org/go/Battery_Charging#EEPROM_Init and let us know if it work.

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While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. –  Indrek Dec 19 '12 at 9:39
    
These instructions also seem very specific to the OLPC... it doesn't seem to specify if this will work for other computers/batteries. –  nhinkle Dec 19 '12 at 9:53
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