Thread: LP-E6 batteries tests and thoughts

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  1. #11  
    Senior Member Frank Glencairn's Avatar
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    Quote Originally Posted by shijan View Post
    Yes, but camera can't draw discharge charts.
    .
    I know, but what are those charts for?
    The only thing that matters for us is, how long before the camera turns of?
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  2. #12  
    Senior Member shijan's Avatar
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    Those charts help to predict when it is time to replace a battery. They are allow look into the future. This helps to avoid situation when it seems that battery works ok with camera, but in next day in critical moment it turns off camera after 10 minutes. For example weakest battery in that chart (original BMMCC battery) was usable but very unstable last times. Sometimes it worked well, but sometimes it randomly turned off very quick. If i have those charts measurements earlier, i'll be able to see that this battery became closer to end limit and needs to be replaced or at least used only as backup battery for monitor, but not for camera.
    All my custom made accessories for BMMCC/BMMSC now available here https://lavky.com/radioproektor/
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  3. #13  
    Senior Member shijan's Avatar
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    Quote Originally Posted by GeranSimpson View Post
    If I'm remembering correctly, that is a typical characteristic of Li-Ion batteries. They drop off sharply from max voltage and then stay relatively consistent at a mid-range voltage before being depleted. Other battery types linearly decrease over time.

    You can see this if you've ever used electronics where the speed is relative to voltage with AA batteries, and the speed gradually decreases as the batteries deplete, vs something like a LiIon device that stays the same until it dies.
    Yes, all batteries drop voltage under the load. Battery capacity vs applied load ratio makes that start drop more or less dramatic. Larger batteries with lower load will drop less voltage from start. Probably it depends of battery chemistry type as well.
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  4. #14  
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    The best way to get good battery life out of a BM camera is to sell it and get a Canon.

    It's interesting that people who make money shooting videos don't want to see something graphical eg a graph and just want to know when the battery will die.

    It's like wanting to get drunk but not taste the beer.
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  5. #15  
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    I don't remotely get that analogy.
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