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Old 16th of January 2009 (Fri)   #1
anthonyi
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Default Battery Charging

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.
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Old 16th of January 2009 (Fri)   #2
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Default Re: Battery Charging

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.
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Old 16th of January 2009 (Fri)   #3
anthonyi
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Default Re: Battery Charging

OK, thanks. It was the memory effect that I was thinking about. Good to know.
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Old 16th of January 2009 (Fri)   #4
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Default Re: Battery Charging

The memory effect exists in Ni-Cad batteries, not with Lithium-Ion batteries.
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Old 16th of January 2009 (Fri)   #5
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Default Re: Battery Charging

Quote:
Originally Posted by doctorgonzo View Post
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.
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Old 16th of January 2009 (Fri)   #6
RDKirk
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Default Re: Battery Charging

Quote:
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.
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Old 16th of January 2009 (Fri)   #7
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Default Re: Battery Charging

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Originally Posted by RDKirk View Post
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.
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Old 16th of January 2009 (Fri)   #8
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Default Re: Battery Charging

Quote:
Originally Posted by anthonyi View Post
Never really thought about it before.
Dont think about it.
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Old 16th of January 2009 (Fri)   #9
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Default Re: Battery Charging

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.)
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