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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 10 Nov 2007 (Saturday) 16:37
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Battery or camera problem?

 
kwsanders
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Nov 10, 2007 16:37 |  #1

I have a Canon 20D that I purchased from another forum member last year. I used it quite a lot for the first several months that I had it, but off and on since May because of some surgery that I had.

Recently, I have been getting it out more often, but I have noticed an issue with either my batteries or the camera that is bugging me.

I took the camera to my son's soccer game today and took a few pictures. After about 20 photos on what supposedly were totally charged batteries, the camera went dead. It was not that cold out... probably in the mid 50's when I started.

I brought the batteries home and put them on the charger and after a few minutes, the charger registered the batteries as fully charged. I put them in the camera and went outside. I snapped about four quick shots with my 400 mm f/5.6L and when I looked at the battery strength indicator after it wrote the shots to the CF card, it had only one indicator lit. I took another shot and turned the camera off. After turning off the camera, a couple of the indicators were still lit on the upper display and the number of photos was flashing.

Has anyone else had any issues like this? The batteries that I was using this particular day are the ones that I got online from Sterlingtek. I have had them since I purchased the camera and I have never had any problems until now.

I have another couple of batteries that I got with the camera, so I am going to make sure those are charged up and try them out later this evening.


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Canon ­ Bob
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Nov 10, 2007 17:06 |  #2

Li-on batteries should not be stored for long periods if they are fully charged. Maybe this was the case during your lay-up.
They also behave better if you re-charge them before they become fully discharged....you might attempt a recovery by charging, using partially and then charging again....repeating the cycle several times.

Bob


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gjl711
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Nov 10, 2007 18:01 |  #3

More importantly, Li-ion batteries go bad just sitting on the shelf. They do not have to be used for them to slowly degrade.
I doubt that you will be able to recover them as their chemical reaction is quite different the Ni-cads which can be shocked back into usability.
My advice, spring for the 10~15 bucks and get a spare battery from Sterlingtec.


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kwsanders
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Nov 10, 2007 20:58 |  #4

Thanks for the responses. I'll probably order a couple of new ones and see if that makes a difference, especially as I am getting that photography bug again.


Kerry Sanders | flickr (external link)
60D w/BG-E9 grip, 20D w/BG-E2 grip, 400mm f/5.6L, 70-200mm f/4L, 17-40 f/4L, 100mm f/2.8 Macro, 50mm f/1.4, Canon 1.4x II Extender, 580EX Flash
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kalle_karlsson
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Nov 11, 2007 09:11 |  #5

this is a good site explaining the secret of batteries
http://www.batteryuniv​ersity.com (external link)


/Kalle
EOS 5D Mark II|EF 24-105 f/4.0L IS|EF 70-300mm f/4-5.6L IS|EF 100mm f/2.8 Macro|EF 85mm f/1.8|Speedlite 580EX II|Fuji X10

  
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Battery or camera problem?
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