Talk:Button cell

message: Moved to "Button cell" rather than "Watch battery" because this battery is used elsewhere other than watch. Kboom 13:55, 12 July 2007 (UTC)
replies: text: But "watch battery" is the official term used in the relevant international standard (IEC 86-3) and is clearly more descriptive. Reverting move. Markus Kuhn 17:26, 26 July 2007 (UTC)

text: I prefer "button cell battery" for title, redundant or not. There are various terms [button, coin, disc]+[battery, cell] and various uses besides in watches. A standard for usage in watches doesn't define it use. Also many wrist watches do not use button batteries. Today's smartwatches use built-in batteries, with wireless inductive recharging etc... Yohananw (talk) 19:42, 10 January 2016 (UTC)
thread_title:  Move page 

message: ISO/IEC 83-3 lists the following diameter codes:
20 = ...
5 = ...
Shouldn't the first line read 4 = ...? Isn't there a 20 farther down the list? Ratzd'mishukribo (talk) 21:03, 16 April 2008 (UTC)
replies: text: Never mind, context shows I'm right so I'll change it myself. Ratzd'mishukribo (talk) 21:17, 16 April 2008 (UTC)
replies: text: The page originally had the correct reading (4 = ...) but was vandalised by Special:Contributions/Senguin, who has done nothing on Wikipedia but vandalise this page three times on the 29 January 2008. While the other errors were corrected, the replacement of '4 = ...' by '20 = ...' was overlooked. Ratzd'mishukribo (talk) 18:47, 25 April 2008 (UTC)

text: I was just going to expand the coding system description here but it became long enough to become  Battery nomenclature - which still needs some summary of JIS and British standards, and more explanation of the ANSI system logic. --Wtshymanski (talk) 01:36, 18 January 2010 (UTC)
replies: text: Well, there are IEC and ANSI standard sizes, and then there are manufacturer's part numbers which can follow what ever internal logic suits the manufacturer. --Wtshymanski (talk) 22:43, 9 March 2014 (UTC)
thread_title:  Package size decoding 

message: Can anybody add a diagram of the structure? If not, I will. Ratstail91 (talk) 22:12, 2 December 2008 (UTC)
thread_title: Diagram

message: In the Common applications section, "# Cartridges for Pokémon Gold, Pokémon Silver, and Pokémon Crystal." is listed.
But weren't/aren't button cell batteries used in most/all video game cartridges that had a save function up until (roughly) later Game Boy Advance games?  If so, shouldn't we change this common application to "older video game cartridges with a save function" in general?
Josh7289 (talk) 02:09, 17 August 2009 (UTC)
thread_title:  Video game cartridges 

message: So, is the SG927 Panasonic cell really a lithium/copper oxide cell, or a silver oxide cell? It's not on the Panasonic web site, anywhere I can see so far anyway.  Third party sites replace the Panasonic with  either silver oxide or alkaline types, but battery sites are notoriously sleazy about accuracy. --Wtshymanski (talk) 02:25, 20 July 2010 (UTC)
thread_title: Lithium copper oxide or silver? 

message: On Amazon and eBay there is much discussion of fake brand-name CR-2032 batteries, usually claiming to be made in Japan, but actually made in China or Indonesia. Are there any sources of real information about this?  How many actual factories are there, where, and are most of the batteries actually the same? Where is data about how many of each battery each big name makes? Please add info to article.-96.237.15.180 (talk) 12:58, 30 August 2010 (UTC)
replies: text: There are a great many comments about fake batteries, particularly lithium coin cells, the very widely-used CR2032 and others. This appears on the Web sites of retailers who support user reviews (e.g. Amazon), in some commercial Web sites ("our batteries, though more expensive, are not the widely-sold fakes"), and elsewhere. (Reviews tend to be 90% positive, but careful reading finds 90% "delivered promptly, just installed, successfully powered my equipment", with a small minority of "bought 3 months ago, expected to last for years, failed today". My person experience (banned Original Research) is that I have bought CR2032s with a reputable name (Panasonic, maybe others, don't remember) which came in not very professional-looking bubble packs. I tended to keep them (I keep at least one spare, replace when used); when I came to use them (months, not years after purchase—not expired) they worked perfectly at first, but lasted for only a very short time, maybe 3 months instead of 2-3 years.I haven't found a "Wikipedia-reliable" source of this fakery. According to Wikipedia guidelines this means this topic is off-limits, verboten, taboo. Despite this the evidence is, I think totally convincing. In addition to the reviews and discussions, the pricing of batteries and the appearance of some (not all) of the packaging arouses suspicion. As of mid-2013, UK electronic trade distributors sell CR2032 batteries to the general public (trade prices will be lower) at prices starting at £0.75 for an unknown (but genuine) make, about £1.10 up for known makes such as Panasonic. Shops sell at prices from around £3. But name-brand CFR2032 batteries are available from Internet sources and some shops at 12 Panasonics for £3 including delivery, 10 Maxells for £2 delivered, and so on. I expect the situation in other countries to be similar; I doubt this is a local issue. (£1 is about US$1.50; UK prices tend to be higher than US.)The consistent and widespread reports of fake batteries, the often wrong-looking packaging, the prices way below trade, let alone retail, prices, and my own personal experience—surely shared by many of you who read this—add up to a fairly convincing picture of fakery. I think another Wikipedia guideline becomes operative here: Wikipedia:Ignore all rules, "If a rule prevents you from improving or maintaining Wikipedia, ignore it". This is actually an important issue, despite the small amount of money that a battery costs; it can be anything from inconvenient to dangerous for a battery to fail prematurely (medical equipment uses batteries); and the total amount of money involved is probably very large.I propose to amend the article with this information at some time, and seek consensus here (or condemnation, in which case I won't). What do you think? Better still, can you find any sources that meet Wikipedia guidelines? Pol098 (talk) 13:45, 21 July 2013 (UTC)
replies: text: Found a source at last! Pol098 (talk) 17:04, 13 October 2014 (UTC)
thread_title:  Fakes 

message: An eBay seller asserts:
:"Please Beware of people selling cheap China kind Maxell batteries their freshness and capacity is very low. Though they are saying that the batteries are genuine maxell they are not. HITACHI maxell don’t make any alkaline button cell, these are cheap china batteries... You can confirm this with Maxell USA as well. Hitachi maxell Only makes the following numbers in alkaline button cells LR41, LR43,LR44,LR1120, LR 1130. But these numbers also they are selling the fake ones... Original Maxell batteries have a new HOLOGRAM SEALED BLISTER CARD. Which will you see in the picture in my listing. Fake Maxell batteries have a card board type packing and are normally multicolored packing..."
Can any of this be verified?-96.237.15.180 (talk) 14:45, 30 August 2010 (UTC)
replies: text: The heading of this section doesn't match the text. CR2032 batteries are lithium button cells (not alkaline), and Maxell make nearly a dozen types including CR2032. Fake lithium buttons abound, often with reputable names, but the above text has nothing to do with that. Packaging and markings on batteries may or may not help - I don't know enough. But don't trust a battery just because it has a known name. Pol098 (talk) 19:29, 12 August 2011 (UTC)
thread_title:  Fake Maxell CR-2032 batteries? 

message: I'd like to see more articles on individual cells and cell families. What is the history of so many different numbers for nominally identical cells? Very hard to learn difference between 395 and 399, for example. -71.174.175.150 (talk) 16:52, 30 November 2014 (UTC)
thread_title:  more articles on individual cells and cell families 

message: * www.energizer.com/SiteCollectionDocuments/pdf/specialty/WE_Cross_Reference_Guide.pdf
 col 1: old low-drain type
 col 2: old high-drain type
 col 3: multi-drain type
 -----
 301 386 386-301 MD
 384 392 392-384 MD
 397 396 397-396 MD
 390 389 390-389 MD
 303 357 357-303 MD
 362 361 362-361 MD
 394 380 394-380 MD
 395 399 395-399 MD
 371 370 371-370 MD
 364 363 364-363 MD
 377 376 377-376 MD
 381 391 391-381 MD
-71.174.175.150 (talk) 19:51, 30 November 2014 (UTC)
thread_title:  low-drain vs. high-drain cells 

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thread_title:  Blacklisted Links Found on [[Button cell]] 

message: Yes Lithium are generally larger, and so more hazardous as the smaller sizes can get passed through. Nevertheless "Batteries and sharp objects should be removed immediately to avoid complications while others [foreign objects] can be observed for spontaneous passage." [PubMed abstract]
The NLM doesnt have a MeSH for button battery ingestion. it falls under the MeSH -- 
Electric Power Supplies/adverse effects*
Foreign Bodies
Foreign-Body Reaction/
This free full text review article on button cell battery ingestion notes that hearing aid cells are more common source of injested battery. Jatana, Kris R. et al. Pediatric button battery injuries: 2013 task force update. International Journal of Pediatric Otorhinolaryngology , Volume 77 , Issue 9 , 1392 - 1399 http://www.ijporlonline.com/article/S0165-5876(13)00285-1/pdf  A clear public info source is THE NATIONAL CAPITAL POISON CENTER., "Swallowed a Button Battery?  https://www.nema.org/Policy/Environmental-Stewardship/Documents/batteryingest.pdf  Yohananw (talk) 20:37, 10 January 2016 (UTC)
thread_title:  Health hazards - button battery ingestion 

message: Came here to find something about when these were developed, when the first cells came to market, when they became (per field of use) ubiquitous.  Nothing.  Not surprised by the quality of WP --jae (talk) 18:43, 23 September 2016 (UTC)
replies: text: On behalf of Wikipedia's countless editors, who work on it for free, nobody is sorrier than me that the world's largest encyclopedia has been unable to make you happy with this article.GliderMaven (talk) 20:54, 23 September 2016 (UTC)
thread_title:  History 

message: IEC 60086-1-2000 table 3 on p14 has an overlapping list of codes (-ABCEFGLPS), but usefully also has the maximum open circuit voltage. (Sadly does not have the M/N codes for mercury cells). Could just add as external link if not suitable for ref for amended table ? 
Same doc could be used as source for the package code subsection. - Rod57 (talk) 19:59, 28 November 2016 (UTC)
thread_title:  Possible source for electrochemical system codes 

message: Please add info about shelf life, self-discharge no-load leakage, etc. Temperature dependence? Are silver based longer shelf life than alk?-71.174.185.30 (talk) 23:29, 20 May 2017 (UTC)
thread_title:  shelf life 

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thread_title:  External links modified 

message: Hello. There is a CR2032 variant named CR2032-CL. It has a PVC cover and a cord, with a connector at its extremity. But this one isn't covered here, on this article!--MisterSanderson (talk) 16:33, 17 January 2019 (UTC)
thread_title:  CR2032-CL 

message: Although MRxxxx, VRxxxx and LIRxxxx rechargeable button cell batteries are briefly mentioned in the main article, no information is provided about their properties (voltage, capacity) or chemistry.
Here is an external article that outlines the key properties for each of the above mentioned types: http://www.cr2032.co/chemistry-article.html  — Preceding unsigned comment added by MortenHattesen (talk • contribs) 10:18, 20 March 2019 (UTC)
thread_title:  Rechargable button cell information 

message: -- Beland (talk) 23:04, 12 January 2020 (UTC)
thread_title:  Could use info on history 

message: A discussion is taking place to address the redirect :Battery Watch. The discussion will occur at Wikipedia:Redirects for discussion/Log/2021 March 18#Battery Watch until a consensus is reached, and readers of this page are welcome to contribute to the discussion.  Shhhnotsoloud (talk) 08:09, 18 March 2021 (UTC)
thread_title:  "Battery Watch" listed at [[Wikipedia:Redirects for discussion|Redirects for discussion]] 

message: A discussion is taking place to address the redirect :Battery watch. The discussion will occur at Wikipedia:Redirects for discussion/Log/2021 March 19#Battery watch until a consensus is reached, and readers of this page are welcome to contribute to the discussion.  Shhhnotsoloud (talk) 10:40, 19 March 2021 (UTC)
thread_title:  "Battery watch" listed at [[Wikipedia:Redirects for discussion|Redirects for discussion]] 

message: An edit war is brewing where an editor has removed the section regarding children swallowing these objects. The material is referenced and point directly to the subject. I leave this as a placeholder for discussion for involved editors. Ifnord (talk) 13:10, 1 October 2021 (UTC)
thread_title:  Effects on children swallowing battery 

message: An editor continually reverts back in a section containing clinical details on the effect of children swallowing lithium batteries.
First: the section is contains nothing about lithium batteries in particular and is applicable to batteries of any kind.
Second: It documents the more intricate clinical details which might be more relevant in an article about the clinical effects of battery swallowing but not to a general article on the batteries themselves.
Third: the article already contains three references to the fact that such batteries can be swallowed to the point of redundancy. 185.69.145.22 (talk) 13:13, 1 October 2021 (UTC)
thread_title:  Lithium battery subsection. 

message: In /*Electrochemical system*/ there are currently two tables. The first is non-rechargeable only.  The second is is all rechargeable except one.
It would be simpler to just have one combined table. One column could be rechargeable with a yes/no value. Em3rgent0rdr (talk) 14:15, 27 April 2024 (UTC)
replies: text: There is also a bullet list after "For rechargeables, the IEC prefixes are:" which could be combined into such a single table too, for easier comparison. Empty fields can just be left blank. Em3rgent0rdr (talk) 14:36, 27 April 2024 (UTC)
thread_title:  Merge non-rechargable table and rechargable table into one table