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Thread started 16 Jan 2009 (Friday) 12:01   
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anthonyi
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Sorry if this is a 'dumb' question but...if I recharge my 400D or 5D batteries before they are fully recharged will it damage them in any way..?

Never really thought about it before.

Post #1, Jan 16, 2009 12:01:29




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tonylong
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No. Older battery types would eventually lose capacity if you did that due to a "memory" affect, but modern rechargables don't act that way. I routinely recharge batteries after using them for some substantial period just to ensure having fully charged batteries.

Post #2, Jan 16, 2009 12:06:31


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anthonyi
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OK, thanks. It was the memory effect that I was thinking about. Good to know.

Post #3, Jan 16, 2009 12:12:51




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doctorgonzo
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The memory effect exists in Ni-Cad batteries, not with Lithium-Ion batteries.

Post #4, Jan 16, 2009 13:32:22 as a reply to anthonyi's post 1 hour earlier.


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vondo
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doctorgonzo wrote in post #7090699external link
The memory effect exists in Ni-Cad batteries, not with Lithium-Ion batteries.

Correct, but the best way to maximize the life of a spare Li Ion battery is to store it partially charged at cool temperatures. So I will run mine down to one bar and put it in the fridge. Then pull out another one and let it warm up for several hours to a day before charging it.

The worst thing you can do for these batteries is to store them at high temperatures fully charged. I keep a spare in that state, but not all my batteries.

Post #5, Jan 16, 2009 13:37:49


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Kenko 1.4x T-con, 430EX

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RDKirk
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The worst thing you can do for these batteries is to store them at high temperatures fully charged.

Well, that's not the worst thing. Far worse is to charge them at high temperatures. Below that is to use them at high temperatures. Storing them at high temperatures is perhaps the third worse thing.

Post #6, Jan 16, 2009 16:24:05 as a reply to vondo's post 2 hours earlier.




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vondo
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RDKirk wrote in post #7091736external link
Well, that's not the worst thing. Far worse is to charge them at high temperatures. Below that is to use them at high temperatures. Storing them at high temperatures is perhaps the third worse thing.

Fair enough. :)

Post #7, Jan 16, 2009 16:43:58


Canon 5DMkII, 7D, 40D, Elan 7E, EOS 10s, G12
50 f/1.8, 100 f/2, 400 f/5.6L,
18-55 IS, 24-105 f/4L IS, 70-200 f/4L IS
Kenko 1.4x T-con, 430EX

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majorpayne66
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anthonyi wrote in post #7090118external link
Never really thought about it before.

Dont think about it.:lol:

Post #8, Jan 16, 2009 18:51:01


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Cheesey
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For better or worse, I don't believe in taking care of batteries. I believe they should take care of me.

If they don't, out they go.

I use them up, never look back, and don't feel an ounce of guilt.

(Sorry. I'm afraid I somewhat lost control for a moment. I'm better now.)

Post #9, Jan 16, 2009 19:00:58 as a reply to majorpayne66's post 9 minutes earlier.


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