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Battery life

Discussion in 'General Electronics' started by Volund, Oct 3, 2004.

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  1. Volund

    Volund Guest

    Hi,

    I heard or spotted somewhere that putting batteries in the freezer prolongs
    there life until needed, is this a myth or what?
     
  2. Robert Baer

    Robert Baer Guest

    Not good to put in freezer, as the water will freeze and crystallize
    and bust them.
    However, in the cold, non-freezing area, the lower temperature will
    reduce the chemical activity and extend the life for a number of years
    depending on type / chemistry (some formulations are more active so
    extenstion would be less).
    This is a trick that is also used in photography (film).
     
  3. If you freeze NiCad or Lithium batteries they will be damaged. If you
    freeze a gel cell that is discharged, it will be damaged. As for the
    alkeline batteries, I have been told by one manufacture representitive
    to not freeze them.

    As for their shelf life, most batteries are good for 3 to 5 years.
    This is long enough for something as low in cost as a battery, where
    there should not be any worry for its value.

    Jerry G.
    ========
     
  4. Volund

    Volund Guest


    They would be put in some protective bag, ziploc sort of thing, suck the air
    out too.

    Thanks for the help tho
     
  5. I've had alkaline batteries killed by being left in a car during cold
    weather.
     
  6. Well, I've actually thought freezing Alkaline batteries before recharging would
    prevent them from getting too hot and leaking/exploding. Turns out I was wrong.
    From experience, freezing always causes leakage, but I have yet to learn why.
     
  7. Robert Baer

    Robert Baer Guest

    The moisture inside (needed for chemistry to work) crystallizes on
    freezing, making all expand and thus destroys the cell(s).
     
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