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Ni-Cd Battery Question

Discussion in 'Electronic Design' started by Rewar, Jan 1, 2005.

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  1. Rewar

    Rewar Guest

    I have two cordless drills, each has Ni-Cd batteries. The instruction book for
    one (Craftman) says the battery should be stored charged, the other (Skil) says
    discharged. Are different Ni-Cd batteries that different?


  2. John Doe

    John Doe Guest

    You mean prolonged storage. Do not worry about between-use storage.

    You might also try this group.


    Have fun.
  3. No, but some manufacturers are skilled and some are merely crafty. (;-)

    Whether you store them charged or discharged, after 3 months they will
    be discharged. I charge mine every 3 months or so. Y MMV.
  4. Rewar

    Rewar Guest

    I wrote

    Which is what I do and what the Craftsman manual says to do.
    What bothers me is the following from the Skil manual:

    "If you anticipate long periods (i.e a month or more) of non-use of your tool
    it is best to run your tool down until it is fully discharged before storing
    battery pack." Or " . . . ". if you prefer.

    So I will go to "sci.chem.electrochem.battery" as jdoe suggested and
    in the mean time, to be on the safe side, I will discharge them half way.


  5. mike

    mike Guest

    Running your drill down to zero is the WORST thing you can ever do to a
    battery... ok, ok, you can run over it with a truck, but you know what I
    mean...At least one cell will get reversed in the process.

    When drilling a hole, if your drill takes a sudden down-step in speed,
    STOP immediately and recharge the thing. Finishing the hole is BAD.
    I've bought a dozen drills at garage sales. They ALL had at least one
    reversed cell.

    Return address is VALID.
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