Post by thread:[EE]: mA-H for energizer?

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 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

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 -- Ned Konz http://bike-nomad.com GPG key ID: BEEA7EFE -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

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}> > > 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 > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

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_OUTAlexKTakeThisOuTHCITRAINING.COM> wrote: {Quote hidden}> > 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 > > -- > http://www.piclist.com hint: The PICList is archived > three different > ways. See http://www.piclist.com/#archives for details. __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - File online, calculators, forms, and more http://tax.yahoo.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

>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 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

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. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

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}

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 -- Dwayne Reid <dwaynerKILLspamplanet.eon.net> Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 19 years of Engineering Innovation (1984 - 2003) .-. .-. .-. .-. .-. .-. .-. .-. .-. .- `-' `-' `-' `-' `-' `-' `-' `-' `-' Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

{Quote hidden}> -----Original Message----- > From: Dwayne Reid [.....dwaynerKILLspam.....PLANET.EON.NET] > Sent: Monday, April 14, 2003 6:31 PM > To: EraseMEPICLISTspam_OUTTakeThisOuTMITVMA.MIT.EDU > Subject: Re: [EE]: mA-H for energizer? > > > 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?) > 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 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

> 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 -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listservspam_OUTmitvma.mit.edu with SET PICList DIGEST in the body

> >I'm curious...what do you do for a living? > > Who, me? I read the PICList :)))) You call this living ? (with apologies to Eccles) -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email KILLspamlistservKILLspammitvma.mit.edu with SET PICList DIGEST in the body

> 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). ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email RemoveMElistservTakeThisOuTmitvma.mit.edu with SET PICList DIGEST in the body

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 -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email spamBeGonelistservspamBeGonemitvma.mit.edu with SET PICList DIGEST in the body