Battery Checker? For Canon BP-511 and Others

Discussion in 'Beyond the Basics' started by RacePhoto, Jul 11, 2007.

  1. RacePhoto
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    RacePhoto New Member

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    From B&H Photo:

    Here's the question. If I have one of these, and I'd like someone who owns one or has experience, and I have six batteries (numbered by the way) and I want to know which are the good batteries and which are going to hold a short charge...

    Does this tester just show "full charge" and then after 9 photos the battery goes dead, or does it show the capacity of the battery?

    I have two new batteries and four older ones, and I'd like to rate them so I can match the second best pair for the grip.
  2. Garbz
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    Garbz New Member

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    Does your camera do this in software by any chance? The D200 and D80s have a tool under the maintenance menu which allows you to check the life of the battery and it gives you an indication if it is time to get them replaced or not.

    In my experience LI batteries make themselves known if they are bad. It's the difference between 500+ photos and only 20 or so. My guess would be if you can make a >15 minute exposure on the fully charged batteries they are fine.
  3. RacePhoto
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    RacePhoto New Member

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    Sorry I was out of town, then working and crashing. :lmao:

    The good or bad, with no in between sounds like what I've had happen. I didn't know that LI batteries went from good to junk like that. Thanks.

    Yes I have some that will go about 200 pictures, one that seems to be good for 9 and another that may take 50, or less. That's why I was looking for some battery life tester. I suppose someone with a a Canon EOS might know, or I can go search for a long time. (or read the manual?)

    But if the tester shows battery life, then I'll order one with my next B&H order. I was hoping someone had one of these or at least knew about them.


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