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Long term Ni-Cad Battery storage... LoneStar 07-02-2007
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Posted by LoneStar on July 2, 2007, 4:43 pm
I recently purchased a fine cordless drill which came with a spare 18 volt
Ni-Cad battery. I won't be using the spare for a LONG time -- I plan to use
the primary battery till it dies, then use the spare. Question: what's the
best way to store it? In refrigerator, discharged, fully charged, freezer,
or what? I've had bad luck with these kind of batteries in recent years.
It seems I "kill" them after a year's usage. Perhaps I don't
charge/discharge properly.

Anyway, how do I store the spare for a year or two? Thanks.

EW



AppliancePartsPros.com, Inc.
Posted by RicodJour on July 2, 2007, 4:51 pm
> I recently purchased a fine cordless drill which came with a spare 18 volt
> Ni-Cad battery. I won't be using the spare for a LONG time -- I plan to use
> the primary battery till it dies, then use the spare. Question: what's the
> best way to store it? In refrigerator, discharged, fully charged, freezer,
> or what? I've had bad luck with these kind of batteries in recent years.
> It seems I "kill" them after a year's usage. Perhaps I don't
> charge/discharge properly.
>
> Anyway, how do I store the spare for a year or two? Thanks.

Sell the battery and buy a new one when you need it. Otherwise
alternate using both batteries so you'll always have a charged one on
hand. NiCads lose their charge just sitting there. Roughly a month
and thing is totally dead.

R


Posted by Jim Yanik on July 2, 2007, 6:25 pm

> I recently purchased a fine cordless drill which came with a spare 18
> volt Ni-Cad battery. I won't be using the spare for a LONG time -- I
> plan to use the primary battery till it dies, then use the spare.
> Question: what's the best way to store it? In refrigerator,
> discharged, fully charged, freezer, or what? I've had bad luck with
> these kind of batteries in recent years. It seems I "kill" them after
> a year's usage. Perhaps I don't charge/discharge properly.
>
> Anyway, how do I store the spare for a year or two? Thanks.
>
> EW
>
>

if you have not charged the spare yet,don't.
IMO,NiCds store best if never charged.

If you already have charged it,then you have to recharge it
periodically.Manner of storage is not going to matter much.

DONT freeze the pack!!

NiCds last best if used frequently,and then fast charged promptly.
Fast=1 hr

--
Jim Yanik
jyanik
at
kua.net

Posted by LoneStar on July 2, 2007, 6:48 pm
Thanks to the both of your for your replies. On the first reply, I can't
just sell the battery -- no buyers around here for anything. I'll just do
as Jim says: store the uncharged battery till needed. However, this time,
I'm going to use the primary battery until it's fully discharged, then fully
charge it, every time! In the past, my mistake was to charge after each
use, whether it needed it or not. The so-called "memory effect."

Thanks.

EW

>
>> I recently purchased a fine cordless drill which came with a spare 18
>> volt Ni-Cad battery. I won't be using the spare for a LONG time -- I
>> plan to use the primary battery till it dies, then use the spare.
>> Question: what's the best way to store it? In refrigerator,
>> discharged, fully charged, freezer, or what? I've had bad luck with
>> these kind of batteries in recent years. It seems I "kill" them after
>> a year's usage. Perhaps I don't charge/discharge properly.
>>
>> Anyway, how do I store the spare for a year or two? Thanks.
>>
>> EW
>>
>>
>
> if you have not charged the spare yet,don't.
> IMO,NiCds store best if never charged.
>
> If you already have charged it,then you have to recharge it
> periodically.Manner of storage is not going to matter much.
>
> DONT freeze the pack!!
>
> NiCds last best if used frequently,and then fast charged promptly.
> Fast=1 hr
>
> --
> Jim Yanik
> jyanik
> at
> kua.net



Posted by Bob F on July 2, 2007, 7:16 pm

> Thanks to the both of your for your replies. On the first reply, I
> can't just sell the battery -- no buyers around here for anything.
> I'll just do as Jim says: store the uncharged battery till needed.
> However, this time, I'm going to use the primary battery until it's
> fully discharged, then fully charge it, every time! In the past, my
> mistake was to charge after each use, whether it needed it or not.
> The so-called "memory effect."

If you "fully discharge" the battery regularly, that will reverse
charge some cells and kill the battery also. Depending of course on
your definition of "fully discharge".

Bob



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