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Hack for B&D Versapak VP100 batteries?

Discussion in 'Electronic Design' started by Joerg, Aug 6, 2005.

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  1. Joerg

    Joerg Guest

    Hello All,

    These Black&Decker Versapak VP100 batteries for portable tools are a bit
    expensive at around $15 a pop (most tools need two). They are supposedly
    NiCd, diameter 7/8" or about a C size but the cells must be shorter
    since the whole battery section is only 3 3/4" long. They are 3.6V
    nominal so there have to be three cells.

    Is there a way to hack these and replace the innards with some good but
    somewhat standard NiMH?

    Two of mine are dead now, probably slowly overcharged since the charger
    constantly dumps 100mA or more into them (which can be fixed, of course).

    Regards, Joerg
     
  2. Guest

    This sounds like a normal sub C cell. Standard size, readily available.
     
  3. Joerg

    Joerg Guest

    Hello Lewin,
    Sub C would be about 1.75" per GP data sheet so three of these wouldn't
    fit into 3 3/4". Their diameter is quite close but a wee bit larger than
    the Versapak.

    Anyway, I just zapped them pretty good. Unfortunately that couldn't be
    done per single cell. Let's see. Long term it would be better to have
    something in there that isn't proprietary and thus less expensive.

    Regards, Joerg
     
  4. Guest

    Sub C would be about 1.75" per GP data sheet so three of these wouldn't
    I **strongly** doubt they are custom. Go to
    http://www.sanyo.com/batteries/specs.cfm set chemistry to Ni-Cd, size
    to "up through 23.0mm (SC)" and click Find Battery. Seem to be a few
    possible candidates there.
     
  5. Joerg

    Joerg Guest

    Hello Lewin,
    I doubt custom as well. Qties at Black&Decker may be high but not high
    enough for full custom. It could be something like the CP1700. But even
    those are practically off limits for users since such niche batteries
    are only available in very large quatities or at exorbitant prices.

    Regards, Joerg
     
  6. Joerg

    Joerg Guest

    Hello Martin,
    Thanks. Couldn't find any in there although the P-120SCJS almost would
    have fit.

    Regards, Joerg
     
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