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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 16 Oct 2009 (Friday) 17:40
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What is the point of registering a battery info?

 
mrkgoo
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Oct 16, 2009 17:40 |  #1

Sorry about the multiple threads, I did a quick search and didn't find anything. I'm just trying to figure out a bunch of the new features that I'm not familiar with.

On the 7D, you can register battery info. This seems to register a serial no. and remaining capacity. What is the purpose of this? Is it to keep track of which batteries are potentially empty? Obviously the camera won't know if it has been charged.

I notice it keeps track of 'health' of the battery, but does registering a battery help in this, or is that information come format eh battery itself?

I guess it requires a compatible battery with the technology built-in (i.e. official Canon LP-E6).

Which cameras allow you to do this?




  
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artyman
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Oct 16, 2009 17:59 |  #2

Starting to sound like the Printer companies that chip their ink cartridges to try and prevent third party sales.


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Oct 16, 2009 18:14 |  #3

My understanding is that the camera reads info from the microchip on the battery to monitor everything about each battery registered. It began with the 5D2 and the idea is that after a few charge / discharge cycles the camera will be able to predict with some accuracy just how many shots each battery can provide when you go into that menu. The camera should know which battery is in use, and how quickly it discharges in use, which should lead to the camera being able to warn you a bit ahead of time that you've only got "lets say" an hour or so of usable charge under current use conditions.


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mrkgoo
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Oct 16, 2009 18:26 |  #4

Hmmm. Ok, so it's basically for a more accurate reading?




  
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Oct 16, 2009 18:35 |  #5

cicopo wrote in post #8836760 (external link)
My understanding is that the camera reads info from the microchip on the battery to monitor everything about each battery registered. It began with the 5D2 and the idea is that after a few charge / discharge cycles the camera will be able to predict with some accuracy just how many shots each battery can provide when you go into that menu. The camera should know which battery is in use, and how quickly it discharges in use, which should lead to the camera being able to warn you a bit ahead of time that you've only got "lets say" an hour or so of usable charge under current use conditions.

I think it began with the MKIII actually. However, I was able to use the aftermarket batteries with the MKIII, it looks like Canon gets a little more elaborate each generation of this.


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RDKirk
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Oct 16, 2009 22:19 |  #6

cicopo wrote in post #8836760 (external link)
My understanding is that the camera reads info from the microchip on the battery to monitor everything about each battery registered. It began with the 5D2 and the idea is that after a few charge / discharge cycles the camera will be able to predict with some accuracy just how many shots each battery can provide when you go into that menu. The camera should know which battery is in use, and how quickly it discharges in use, which should lead to the camera being able to warn you a bit ahead of time that you've only got "lets say" an hour or so of usable charge under current use conditions.

Almost, but not quite. The camera contains a mini-analyzer that measures how the battery power falls in a given battery during battery use and then how the rate of discharge per shot in that battery increases from charge to charge. In that way, it can predict when the battery is about to fail.

Considering the extra drain on batteries caused by video and the more useful Live View, this is a nice feature to have. It allows me to cut the number of batteries I keep on and by a third because I don't have to fear being surprised by taking a battery off a charger and having it fail on me in mid-session.

There are at least two 3rd party work-alike batteries on the market (although they may be from the same maker under different import brands). Now that the 7D proves this is Canon's direction, I expect more will come. It also proves Canon did not pull any encryption tricks.


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What is the point of registering a battery info?
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