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Store old Lithium ion batteries in refrigerator?
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simo.kaltiainen@sunpoint.
electronics forum addict


Joined: 20 Mar 2006
Posts: 51

PostPosted: Fri Jul 07, 2006 7:40 pm    Post subject: Re: Store old Lithium ion batteries in refrigerator? Reply with quote

Bill Bowden wrote:
Quote:
Is this a good idea?

Yes.

Quote:
How low a temperature can they take?

I dunno, but regular refrigerator temp won't be too cold, at least.

Quote:
I have a few spare used cell phone Li-ion batteries that I may want to
use for other applications, and I was reading some web info indicationg
they should be stored at 40% charge inside a refrigerator.

That's true.

Quote:
I'm
considering putting them in a plastic grocery bag to keep out the
moisture. I haven't checked the capacity, but one or 2 seem to go dead
fairly fast, so I think the capacity is already reduced. I might run a
test on one or 2 of them.

What shelf life can I expect from old worn out li-Ion cell phone
batteries stored in the fridge?

Dunno, but btw, I've heard that some "dead" li-ion batts can be
rejuvenated by putting them to freezer for one night... but i've just
"heard" that and I dunno if it's true, so I don't recommend putting
working ones to freezer Smile
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Bill Bowden
electronics forum Guru Wannabe


Joined: 16 May 2005
Posts: 152

PostPosted: Thu Jul 06, 2006 8:56 pm    Post subject: Store old Lithium ion batteries in refrigerator? Reply with quote

Is this a good idea? How low a temperature can they take?

I have a few spare used cell phone Li-ion batteries that I may want to
use for other applications, and I was reading some web info indicationg
they should be stored at 40% charge inside a refrigerator. I'm
considering putting them in a plastic grocery bag to keep out the
moisture. I haven't checked the capacity, but one or 2 seem to go dead
fairly fast, so I think the capacity is already reduced. I might run a
test on one or 2 of them.

What shelf life can I expect from old worn out li-Ion cell phone
batteries stored in the fridge?

-Bill
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