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Battery expiration

by mackywooha / February 11, 2013 12:43 AM PST

Unsure if this is the correct, place for this query, apologies if not.
I've got something thats bothering me, and I cannot find any confirmation anywhere that tells me.
Does anyone know if there is some legislation that requires a manufacturer to enclose a manufacture date, or an expiration date on batteries? I'm talking about all batteries here, from AA's through to UPS batteries etc, etc.

Any help would be greatly, GREATLY appreciated!


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All Answers

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Not that I'm aware of
by Jimmy Greystone / February 11, 2013 12:50 AM PST
In reply to: Battery expiration

Not that I'm aware of, since it would be difficult to put an expiration date on batteries. Environmental factors play a huge role in that sort of thing. Store them in a hot and humid place, they will not last nearly as long as if they are in a cool dry location.

Seems like at least for the AA-D type batteries, the manufacturers already put that info on the packaging. Whether or not they're required by some law to do this I don't know. Regardless, it's just an estimate of how long the average battery should last if stored in ideal conditions, so basically meaningless.

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Not a date you can set in stone.
by R. Proffitt Forum moderator / February 11, 2013 2:35 AM PST
In reply to: Battery expiration

Given the list of factors that I'll list change the expiry date greatly I don't think it can be done.

Factors such as temperature, humidity, manufacturing variables, shock, drop and more can often reduce the life span. There are many fine articles about storing a battery but I'm going with the following advice.

Don't buy too many in advance of your needs. I keep about a year supply here but no more than that. The only reason I have that many is we use too many at the office and want the bulk pricing.

Now that we have a nice shop that takes the spent batteries back to be recycled into new batteries, we don't feel so bad.

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Battery expirations
by mackywooha / February 12, 2013 1:30 AM PST

Thanks very much for the information. Very helpful, and I think these answer my question, regarding legislation.

I have been looking at it from a stock handling and disposal perspective. For example if there are 2 batteries on a shelf, with one having 2 years left on its life span, and 1 with 18 months, the one with 18 months would be picked and dispatched out. Also this would allow disposal of one that had a few months left or so, as I don't imagine customers would be happy to receive a battery with a expiry date of 3 months time on it.

I can appreciate it would be a difficult date to nail down with anything specific, but you would have thought even a Manufacturing date would be required at the very least.

Can I use a carton of milk as a comparison? Happy

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I'm going with maybe.
by R. Proffitt Forum moderator / February 12, 2013 2:08 AM PST
In reply to: Battery expirations

Since manufacturing of milk varies, it can have variations in the expiry date.

UHT Milk can last for months.

So the manufacturing date does not carry much information except for production recalls.

For batteries, using the shortest time to expiry date rotation method is a good choice.

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battery expiration
by Crypus / October 12, 2013 2:19 PM PDT
In reply to: Battery expiration

yes, all batteries expire because the acid inside of the wears down

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