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Long term storage of camera batteries

Discussion in 'Electronic Basics' started by Grey, May 7, 2007.

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  1. Grey

    Grey Guest

    My camera uses AA size 1.25v nickel metal hydride batteries and I've just
    had a set die on me. (holds no charge). If I only use the camera every few
    months or so, what is the best way to store them so they won't degrade?
    Should I leave them full charged, drained or partially drained?

    I have the same question for my camcorder which uses large Lithium-ion


  2. Tom Biasi

    Tom Biasi Guest

    Maybe there is some helpful info here:
  3. thomas

    thomas Guest

    Energizers are particularily bad about this. They are great for many months
    and then puke.

    The Rayovac Hybrid (Walmart...look for the rebate) and the Sony Eneloop are
    a different NiMH technology that maintain their charge. They have a lower
    mAh rating but you will never notice because the self-discharge rate is so
    low. Store them charged. I can't help you with the LiIon.
    ; )
  4. John E.

    John E. Guest

    My camera uses AA size 1.25v nickel metal hydride batteries and I've just
    I've cross-posted this to sci.chem.electrochem.battery . Maybe someone there
    can answer your question.
  5. Ted Edwards

    Ted Edwards Guest

    Try the new Sanyo Eneloop NiMH cells. They are supposed to have a much
    slower self discharge rate.

  6. Marra

    Marra Guest

    I would simply recharge them maybe once per month.
    You could have been unlucky and just bought poor batteries.
    I rarely use my camera and have no problems with rechargeable
  7. Peter

    Peter Guest

    Take a look at for all sorts
    of useful information. I have found that my batteries seem to store best
    as follows:
    NiCd fully discharged
    NiMH Full charge, but not kept cooking
    Li-ion &c 25% charge with occasional small top-ups to no more than 30%
    In all cases cooler is better, but not frozen.
    Manufacturers do seem to overestimate cycle life, especially in small
    Li-ion in high load duties.
  8. GregS

    GregS Guest

    I would just charge before use. Keep a set of NON rechargable Lithium backups.

  9. thomas

    thomas Guest

    Rayovac Hybrid or Sony Eneloop.
    They hold their charge, no need to charge before use.
    They won't all of a sudden "go bad".
  10. John

    John Guest

    If you leave the batteries in the camera, they will be discharged to
    zip by the camera's clock (if it has one) and the configuration RAM
    (assuming that also exists).

    The cameras I've checked (one Olympus, one Kodak) lose configuration
    settings if the batteries are removed for several minutes. This means
    that there is a constant small drain on the batteries.

    The simple solution is to remove the batteries from the camera and
    store them in a cool place.

    Remember to charge them before use.

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