Posted by EXT on April 30, 2007, 1:08 pm
We find it amazing how both Energizer and Duracell batteries fresh out the
package are either dead or close to being dead, and that is with a "best
before" date of several years in the future. Quality control is the pits.
>-> > Hey Norm. No doubt that's true. Everything else being equal, any
> -> > chemical reaction's rate is cut by half for every 10 deg C decrease
> in
> -> > temperature. I know that it works for regular alkaline batteries -
> -> > I've stored batteries in the fridge for decades.
> -> Do they still work after that long in the fridge?
> Why not? Most alkaline batteries are sold with a "best by" date that is
> about five years after their manufacture. Realistically, they will work
> just fine for at least ten years after they are made. And that's at
> room temperature, about 20C. In a fridge, at 0C, they should be good
> for about four times as long, or 40 years.
> dow
Posted by COLIN LAMB on May 3, 2007, 9:25 am
I have stored both carbon-zinc and alkaline batteries in the freezer and
experienced poor results. I put a box of each in the freezer, well within
their code date - although both had sat on the shelf for a period of time.
Batteries in both boxes were good when tested at the time. Removed them a
few years later and allowed to warm to room temperature overnight. Almost
all were bad. I have no explanation - except that I no longer do it.
Colin Lamb
Posted by Neon John on May 3, 2007, 12:35 pm
wrote:
>I have stored both carbon-zinc and alkaline batteries in the freezer and
>experienced poor results. I put a box of each in the freezer, well within
>their code date - although both had sat on the shelf for a period of time.
>Batteries in both boxes were good when tested at the time. Removed them a
>few years later and allowed to warm to room temperature overnight. Almost
>all were bad. I have no explanation - except that I no longer do it.
Just a SWAG but I imagine that the problem was freezing them. I can
easily see the ice crystals disrupting the internal structures.
John
---
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http://www.neon-john.com
Cleveland, Occupied TN
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> -> > chemical reaction's rate is cut by half for every 10 deg C decrease
> in
> -> > temperature. I know that it works for regular alkaline batteries -
> -> > I've stored batteries in the fridge for decades.
> -> Do they still work after that long in the fridge?
> Why not? Most alkaline batteries are sold with a "best by" date that is
> about five years after their manufacture. Realistically, they will work
> just fine for at least ten years after they are made. And that's at
> room temperature, about 20C. In a fridge, at 0C, they should be good
> for about four times as long, or 40 years.
> dow