Question about batteries

Discussion in 'Photography Beginners' Forum' started by Yahoozy, Jun 12, 2008.

  1. Yahoozy

    Yahoozy TPF Noob!

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    ok, so i have two sets of batteries for my camera (by the way my camera takes 4 AA rechargeables) and my usual routine is to charge up one set while using the other.

    now, usually theres a bit of overlap here and there when i go out and want a second set as a backup, but at any rate it seems like the batteries dont last nearly as long as they should, usually they crap out about halfway through what im doing so i need to swap them out for another set.

    does anyone know some stuff about batteries? like if you charge em too much they dont last as long? or like leaving them out makes them lose a charge?

    thanks guys =P
     
  2. Phazan

    Phazan TPF Noob!

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    Well what I've been told about them:

    -don't leave them sitting for a while uncharged
    -don't leave them sitting for months without being used
    -when you first get them, drain them completely before you recharge them
    -The batteries loose their performance the older they get

    That's what I've been told at leased.
     
  3. dylj

    dylj TPF Noob!

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    Rechargeables have a self-discharge rate. Meaning every day, they lose 1-2% of their charge. So you either leave them charging all the time (which might be unhealthy or dangerous, I don't know) or charge them right before you need them.
     
  4. Yahoozy

    Yahoozy TPF Noob!

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    ah cool
    *just had a brainwave*
    if i leave them in the camera when its off would they drain faster?
     
  5. RyanLilly

    RyanLilly No longer a newbie, moving up!

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    They probably do drain a bit faster in the camera, you should remove them if you don't plan to use your camera for a few days.
     
  6. usayit

    usayit No longer a newbie, moving up!

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    We have to know whether you are talking about Ni-MH or Lithium-ion batteries. Both have different characteristics, maintenance and life-span.
     
  7. Yahoozy

    Yahoozy TPF Noob!

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    Ni-MH
     
  8. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    NiMh batteries do loose their charge with time. It's probably more than just 1-2% per day. So you should always make sure they are freshly charged.

    The aren't supposed to have a 'memory'...meaning that you can charge them without having to fully drain them every time...but I've heard that it's still better to drain them each time if you can.

    Also, what type of charger to you use? The cheap 'rapid' chargers can over heat the batteries and shorten their effective capacity...this will also happen over time. So even though they are rated at 2500 mAh...they might only be able to hold 1800 mAh or something like that.

    I suggest a charger that has a slow charging rate and that monitors the batteries so they don't get over charged. You can even get a charger that will test the batteries and tell you their effective capacity....and maybe be able to bring them back up with a refresh mode etc.
     
  9. Yahoozy

    Yahoozy TPF Noob!

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    great thanks =P
    ill get another charger (slow one's fine with me) so that i can charge both sets at the same time and keep em out of the camera when im not using it

    thanks for all the help guys =P
     
  10. djrichie28

    djrichie28 TPF Noob!

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    You bet they do. Rechargeable batteries NI-MH, do in time lose their ability to retain a full charge. They generally last about a year of normal use before needed replacement. They are good for x number of charge cycles.
     
  11. Dao

    Dao No longer a newbie, moving up!

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    If that is the main problem, I think you can try the Sanyo Eneloop Rechargeable batteries. And you do not have to use their charger.

    http://www.eneloop.info/
     
  12. bahandi

    bahandi TPF Noob!

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    i've been told that the Panasonic batteries were made specifically for digital cameras. I don't know anything about them but the sales guy says they lose less charge than the other types.
     

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