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'[EE]: mA-H for energizer?'
2003\04\14@145834 by Alex Kilpatrick

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I thought that the typical capacity for a 9V battery was in the
neighborhood of 150 mA-H?  I am running a test on a ciccuit that
consumes around 3 mA 99% of the time, and so far I it has been running
for almost 4 days (almost 300 mA-h).   I am using a new Energizer 9V
battery.   Does anyone know any real specs on an Energizer?
Thanks!
Alex

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2003\04\14@180414 by Ned Konz

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On Monday 14 April 2003 11:21 am, Alex Kilpatrick wrote:
> I thought that the typical capacity for a 9V battery was in the
> neighborhood of 150 mA-H?  I am running a test on a ciccuit that
> consumes around 3 mA 99% of the time, and so far I it has been
> running for almost 4 days (almost 300 mA-h).   I am using a new
> Energizer 9V battery.   Does anyone know any real specs on an
> Energizer?

I bet the manufacturer does; haven't you looked there?
http://data.energizer.com/datasheets/library/primary/alkaline/energizer/consumer_oem/522.pdf

They rate the alkaline at 625mAh

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2003\04\14@180614 by stanton54

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There is a datasheet on their web site somewhere (I have the file but no
link :( ). At 3 mA it should last about 200-300 hours before getting
down to 6 volts. The rated capacity at 25 mA down to 0.8 V/cell is 595
mAh.

Alex Kilpatrick wrote:
{Quote hidden}

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2003\04\14@180804 by Banjo Spam

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Might want to check their website:
http://data.energizer.com/batteryinfo/product_offerings/alkaline/energizer/alkaline_consumeroem.htm

Lists 625mA for their Consumer Alkaline 9v battery.



--- Alex Kilpatrick <spam_OUTAlexKTakeThisOuTspamHCITRAINING.COM> wrote:
{Quote hidden}

details.


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2003\04\14@181315 by Paul Hutchinson

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IIRC it's a lot more than 150maH.

You can find the data sheet at http://data.energizer.com

Paul

> {Original Message removed}

2003\04\14@181440 by Barry Gershenfeld

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>I thought that the typical capacity for a 9V battery was in the
>neighborhood of 150 mA-H?

>  Does anyone know any real specs on an Energizer?

It's on the Eveready site--I googled it and it says 565 maH.  Your
figure is more typical of a NiCd version.

Barry

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2003\04\14@181502 by Nick Veys

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Nah, but Energizer probably does.

http://data.energizer.com/

Nick Veys
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http://www.veys.com

{Original Message removed}

2003\04\14@181511 by Dave Dilatush

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Alex wrote...

>I thought that the typical capacity for a 9V battery was in the
>neighborhood of 150 mA-H?  I am running a test on a ciccuit that
>consumes around 3 mA 99% of the time, and so far I it has been running
>for almost 4 days (almost 300 mA-h).   I am using a new Energizer 9V
>battery.   Does anyone know any real specs on an Energizer?

If you go to http://www.energizer.com/ and follow the Technical
Literature link, you can get the datasheet yourself.  They spec
the 9 volt X22 alkaline battery at 655 mAh to a discharge level
of 0.8 volts/cell.

Hope this helps...

Dave D.

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2003\04\14@192543 by Alex Kilpatrick

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Thanks for all the replies!

I had not even thought to look at the manufacturer's website.  For some
reason, I thought regular retail battery manufacturers didn't publish
specs.  Why don't they put it on the freakin' package?

Alex

{Original Message removed}

2003\04\14@194946 by Dwayne Reid

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At 05:25 PM 4/14/03 -0500, Alex Kilpatrick wrote:

>I had not even thought to look at the manufacturer's website.  For some
>reason, I thought regular retail battery manufacturers didn't publish
>specs.  Why don't they put it on the freakin' package?

Probably is a good thing that they DON'T mark the rating on the package:
the marketing drones would probably inflate the numbers just like they do
when talking about audio power amplifiers.  (anyone remember those Zoltrix
amplified computer speakers marked "120 Watts" - but with only a 12V 1A
power transformer inside?)

dwayne

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2003\04\14@220826 by Marc Nicholas

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I'm curious...what do you do for a living?

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2003\04\14@221728 by Alex Kilpatrick

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{Quote hidden}

Well, something like mA-H could be independently certified.  I don't see
how it could be fudged in a similar manner.

It can't be worse that what we have now, with bunnies and copper and
robots, etc. used to influence what batteries people buy.

Alex

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2003\04\15@010742 by Russell McMahon

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> Well, something like mA-H could be independently certified.
>  I don't see how it could be fudged in a similar manner.

Just watch them try!

At 0.1 mA steady drain.
At 100k steady drain.
At optimum temperature - or even optimum temperature for current state of
cell.
Or, better still, optimum load current AND temperature and atmospheric
conditions to achieve maximum mAh.

There IS a better load than no load for mAh as at no load there is no mAh.
A load which takes the battery out to a substantial portion of its shelf
life will almost certainly provide best mAh.

"Any sufficiently advanced technology is indistinguishable from a rigged
demo"

I.Asimov.


       RM

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2003\04\15@061412 by Alan B. Pearce

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>I'm curious...what do you do for a living?

Who, me? I read the PICList :))))

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2003\04\15@075028 by Jinx

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> >I'm curious...what do you do for a living?
>
> Who, me? I read the PICList :))))

You call this living ?

(with apologies to Eccles)

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2003\04\15@084041 by Olin Lathrop

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> I had not even thought to look at the manufacturer's website.  For some
> reason, I thought regular retail battery manufacturers didn't publish
> specs.  Why don't they put it on the freakin' package?

1  -  Because then they'd have an infinite parade of bozos calling their
800 number asking if 439mAH is compatible with their radio labeled for 9
volts and 1300 killerhurts.

2  -  Because people are supposed to buy batteries for logical reasons,
like pink bunnys.  Besides, it might point out the competitors batteries
are better (which is probably why the pink bunny was needed in the first
place).


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2003\04\15@144542 by Barry Gershenfeld

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4/14/03  Alex Kilpatrick wrote:

>Well, something like mA-H could be independently certified.  I don't see
>how it could be fudged in a similar manner.

That's because you don't have the Marketing Mentality.  First of
all, you don't sell batteries on silly mumbo-jumbo like
amp-hours.  So first you need to invent a nice term, like "run time",
or "power content", or "lastability".  Then you can "style" it
with "application factors" like a serving size= 4-pack, or
duty cycle= 25%...

Barry

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