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Substituting NiMH and NiCD for Alkaline?

Discussion in 'Electronic Repair' started by Jason Ducharme, May 30, 2004.

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  1. Hi,

    I am currently in South Korea and have been looking for rechargeable
    alkaline batteries for my digital camera. It's an HP 620 and is
    supposed to run on 4 x AA Alkaline batteries. Back in North America I
    was using rechargeable alkaline batteries that I bought at Walmart,
    but I can't find these anywhere over here.

    I have, however, found rechargeable AA NiCD and NiMH batteries. Is it
    ok to go ahead and use these in place of the alkalines, or will this
    damage my camera?

    Thanks in advance,

    Jason Ducharme
  2. Ken Weitzel

    Ken Weitzel Guest

    Hi Jason...

    Photography is my life long hobby; digital for the last
    several years... many cameras :)

    Buy yourself a set of NiMh's - I guarantee you won't
    be sorry; you'll never look back :)

    Don't even consider NiCad's, they won't work at all.
    (the camera will "say" they're dead even when fully

    And while you still have only one set of NiMh's,
    save a set of the "dead" alkalines. Put them
    in the camera while the NiMh's are recharging
    so that the camera doesn't forget it's settings.
    (Even virtually dead batteries will do, it requires
    very little to save the settings)

    Oh, one more tiny thing... I'm a way overprotective
    grandfather, so if you have youngsters in your
    life keep them away from the NiMh's. And while
    they're not in the camera store them properly
    so they can't possibly short anything, like each
    other, or keys in the pocket, etc. The internal
    impedance is so low that they'll dump trememdous
    current for a short while. (I have a burn mark on
    my leg to prove it)

    Hope this helps, lemme know if you can use more info.

    Take care.

  3. eddumweer

    eddumweer Guest

    It couldn't damage your camera, but if it's not manifactured for operation
    with rechargebles it could happen that it operate shorter because the
    voltage for rechargebles is 1.2V instead of 1.5 for alkaline.

    Greetings Peter
  4. You'll be far happier with NiMH batteries in digital camera use
    versus alkaline. Don't EVEN consider NiCads.

    Using Google Groups, search "NiMH" in
    Limit your search to just discussions in the last 3-4 months.
    Using NiMH in digital cameras is one of the *biggest* FAQ's on
    usenet. :) Every new digital camera owner shows up on without ever reading _any_ of the archives
    and asks "Can I use NiMH in my digital camera?" Occurs about
    three times per day.

    Probably, in your case, you should look for a wallwart-style
    charger that works on "all" volts and "all" cycles: The
    Pansonic BQ-390 fits that bill -- running on 100-240VAC - 50-60 cps -
    charging from 1-to-4 AA's at a time. And, its mains plug folds into
    the case for compact, puncture-free packing in luggage.

  5. Rechargeable alkalines are manufactured and sold in Korea under
    the Alcava brand but the packaging may be all in Korean (can't
    remember). They are found in all hypermarkets, department stores
    and most convenience stores.

    As others have suggested NiMh are the way to go but if the camera
    shuts off too soon because of the lower NiMh voltage no harm done.
    Try brand manufacturers like Panasonic, Sanyo etc.
  6. Eric R Snow

    Eric R Snow Guest

    My Pentax camera uses two NiMH batteries. The manual says that
    alkalines are OK but will not last long. Apparently, the NiMH
    batteries have a flatter discharge curve so the voltage doesn't drop
    much until the battery is almost dead, The typical Duracell, etc.
    batteries last only about 1/3 as long as the 1800 mah NiMH batteries
    in this camera. But they will still work in a flashlight. When the
    NiMH batteries won't power the camera anymore they won't work in the
    maglite anymore either.
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