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Crazy idea? Trying to repackage my notebook Battery.

Discussion in 'Electronic Basics' started by Chris, Feb 21, 2004.

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  1. Chris

    Chris Guest


    Apparently it has been done before, so it may not be that crazy after

    My notebook is a toshiba XDVD4100 the battery part number is

    #PA2487U. The battery specifications is

    US17670GR 4/3A 3.7 1300 66.8 16.9 38

    So its a 3.7 volts 1300 mAh

    Lithium Ion battery.

    The question I have, is it possible to replace them with a lower mAh
    lets say a 1200 instead of a 1300?

    is it just a matter of replacing the individual cells/???

    an ideas guys?
  2. Gareth

    Gareth Guest

    You should be careful with lithium ion batteries as they require careful
    charging and can explode if used incorrectly. For this reason lithium
    ion battery packs have protection electronics built in which monitor the
    state of the battery and prevent overcharging or over discharging.

    Repackaging the battery may not be as simple as it looks.

    Why do you want to repackage it anyway?

  3. Chris

    Chris Guest

    It holds a charge for les than 10 minutes.. :(* I think one or more
    cells might be bad.

    QUestion. What if I replaced tne Lithium ion for Other rechargeable
    batter with a similar ouput?? and have them charge via a external
    battery charger? will that work??
  4. DarkMatter

    DarkMatter Guest

    You need to isolate the individual cells, and then charge them at an
    appropriate, but NOT higher charge rate. My toshiba had sony
    batteries in its battery pack which had their mA/Hr rating declared on
    the individual cells. Yours may not, but there is a set rate for a
    given cell. Likely only a tenth of an amp or so.

    Anyway, charging each cell up individually will top off all cells
    evenly, and will expose any "bad" cells for easy replacement.
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