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    Tom Hall's Avatar
    Tom Hall Posts: 8, Reputation: 1
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    #1

    Jan 21, 2008, 06:51 AM
    Old style nickel cadium batteries
    Im looking for information on 1900 era heavy duty nickel cadium batteries.

    What do the different color plates signify?
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    Jan 21, 2008, 07:05 AM
    When the Positive plate is fully charged it will be dark brown, light brown when discharged.
    The Negative Plate will be Gray when charged, and light gray when discharged.
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