Talk:Alkaline battery

message: The definition of anode / cathode may be confusing. Refer to http://en.wikipedia.org/wiki/Anode#Battery_or_galvanic_cell_anode for further discussion on this topic.   —Preceding unsigned comment added by 134.134.136.2 (talk) 18:05, 16 May 2008 (UTC)
thread_title:  Chemistry 

message: Added "approximately" to voltage. An alkaline cell produces 1.58 volts. I'll have to look up carbon-zinc, don't know it off the top of my head. Rsduhamel 07:16, 28 Dec 2004 (UTC)
thread_title:  Voltage 

message: What are the temperature limitations on alkaline batteries?  What happens when you exceed them? - Brewthatistrue 22:09, 23 Jun 2005 (UTC)
replies: text: Alkaline cells have no added mercury; for all practical purposes, you can consider them to be essentially free from mercury. Please check your sources. chami 16:53, 28 October 2022 (UTC)
thread_title:  temperature limitations? 

message: "Once a leak has formed due to corrosion of the outer steel shell, potassium hydroxide absorbs carbon dioxide from the air to form a feathery crystalline structure of potassium carbonate that grows and spreads out from the battery over time, following along metal electrodes to circuit boards where it commences oxidation of copper tracks and other components, leading to permanent circuitry damage."
This has to certainly be the longest run-on sentence on the whole Internet.  — Preceding unsigned comment added by 2606:A000:F441:9300:9C0C:153D:61C5:9958 (talk) 23:46, 26 December 2014 (UTC)
replies: text:  Oh my dear sweet naive child, this isn't even CLOSE. Go for a little cruise around the interwebs and keep your eyes open. Heck, I've probably written longer myself sometime in the last week. 193.63.174.254 (talk) 16:25, 21 February 2017 (UTC)
thread_title: 62 words ~ WOW

message: After letting used batteries sit for a while they seem to partially recharge (although it doesn't last long).  How does this happen?  What are the results, etc?  Is it dangerous to use a battery up like this? Thanks --32.97.110.142 17:18, 7 March 2007 (UTC)
replies: text: The battery doesn't really recharge. Here's an explanation for this curious effect. I just noticed this as well when using a (cheap) alkaline battery in a 1xAAA high drain flashlight. NiMH batteries don't sag as quickly, and they do not noticeably recover either. Aragorn2 (talk) 12:31, 15 April 2009 (UTC)
thread_title:  Self recharging 

message: Sometimes alkaline batteries leak, a clear fluid.  But sometimes white crystal powder forms at one end.  It seems to corrode contacts.  What exactly is this white material, what exactly causes it, how can it be avoided, and what contact materials are most resistant to corrosion? -69.87.193.60 17:27, 22 March 2007 (UTC)
replies: text: the liquid is KOH, chemically known as potassium hydroxide, an extremely corrosive liquid (solution). slowly it absorbs carbon dioxide from the air and forms potassium carbonate, similar to soda ash, with the chemical formula K2CO3. This is less corrosive but you should still handle it with care. chami 17:00, 28 October 2022 (UTC)
thread_title:  White crystals 

message: Information is needed about recycling and disposal practices for alkaline batteries, in various countries around the world. -69.87.193.60 17:27, 22 March 2007 (UTC)
thread_title:  Recycling 

message: There seems to be a contradiction between the Capacity section saying that loads of 1000mA can reduce the energy content due to internal heating and the Current section saying that a AA battery can deliver 1000 mA without significant internal heating.  Am I missing something? --Nathan24601 (talk) 20:50, 24 February 2008 (UTC)
thread_title: Capacity and Current

message: Isn't manganese dioxide the cathode? It says the anode.. but manganese dioxide is gaining electrons and is the cathode in the battery? Am I wrong?  —Preceding unsigned comment added by 88.88.108.79 (talk) 14:34, 2 May 2011 (UTC)
thread_title: Anode or cathode

message: When were ordinary AA/AAA/C/D batteries first commonly sold?
-69.87.203.130 (talk) 00:43, 18 June 2008 (UTC)
thread_title: History

message: I noticed there is not a separate article on these, only an article on recharging standard disposable alkaline batteries. In what ways are rechargeable alkaline batteries different than disposable alkaline batteries? Obviously, other than the ability to recharge. Is the difference in the battery, or in the charger, or in both? When Rayovac released the Renewal line of rechargeable alkaline batteries in 1993 I had a suspicion they had simply created a "smart" charger that could safely recharge any alkaline battery and that the batteries themselves were nothing more than overpriced relabeled versions of their disposable line since they were packaged fully charged. I could be completely wrong on this since I was only 12 at the time and also thought connecting two 9-volt batteries together made a convenient hand warmer. I was a very lucky kid who had great success in recharging my used disposable alkaline batteries in my Ni-Cad charger. By success I mean I never hurt myself or my Game Boy, not that the recharged battery ever lasted very long.
By the way, this is my very first post in Wikipedia so I apologize if I have done so incorrectly. Rlsaine (talk) 18:40, 3 July 2008 (UTC)
replies: text: There is now a separate article, see Rechargeable alkaline battery. Biscuittin (talk) 18:55, 13 October 2009 (UTC)
thread_title:  Rechargeable Alkaline Batteries 

message: I noticed that Twinzor reverted my category removal - see this edit. However, I removed the category from the article because Category:Disposable batteries is actually a subcategory of Category:Electric batteries. Thus I was just following the categorisation editing guidelines. Point 3 suggests that  "Usually, articles should not be in both a category and its subcategory." Thus I have reremoved the category, as per the guideline. - Tbsdy lives (talk) 07:19, 30 August 2008 (UTC)
replies: text: I apologize for that. My edit was due to me not notising disposable batteries was a category of electric batteries, and also because I misunderstood Tbsdy lives's edit summary "remove category - articles should only be part of one category, and only then should be in the narrowest one". Seeing the situation now with the categories as it is and what Tbsdy meant in the summary, I completely agree with his edit. I'll remind myself to double check things before I make such edits in the future. :) --Twinzor (talk) 20:28, 31 August 2008 (UTC)
replies: text: No probs :-) I do find it somewhat hard to make it clear what I'm doing in just one edit summary line. - Tbsdy lives (talk) 05:46, 4 September 2008 (UTC)
thread_title:  Category 

message: There seems to be a dispute on whether "A" or "An" should be used with AA batteries. The Wikipedia article on AA battery gives Double A as the only pronounciation, altough I've certainly heard it pronounced as just A A as well. However, since the relevant article give the pronounciation double A and uses "A AA", weird as it seems, I think we should use the same style for consistency. Thoughts? — Twinzor Say hi! 18:47, 30 January 2009 (UTC)
replies: text: They all work, though I haven't heard anyone regularly violate the typical grammatical rules regarding "a"/"an" when talking about them. EG, "a double-A battery" vs "an A-A battery". Sounding out individual letters or numbers, vs using double-, triple- etc (or in the case of road/phone numbers, saying them as compound numbers at least up into the units-thousand (and maybe tens-thousand in languages where that has its own word) instead of discrete digits) is a matter of personal style rather than any kind of strict set rule. I think someone saying or writing "a AA battery" needs at least a little bit of remedial English tuition, though :) 193.63.174.254 (talk) 16:29, 21 February 2017 (UTC)
thread_title:  Pronounciation 

message: Generally most batteries are sealed or have one-way gas vents, so it is unclear to me how the acid manages to leak out without there being another hole somewhere else for air to enter, in place of the leaking fluid. Most batteries are in plastic cases so I don't see how absorption out of the battery could be occurring. 
What causes the fluid to seep out? 
DMahalko (talk) 02:58, 5 April 2009 (UTC)
replies: text:  Alkali, not acid. The "Handbook of Batteries" says that zinc in the battery will dissociate water and make hydrogen gas, also that the products of the reactions change in density.  Either one of these would increase pressure inside a cell and make it bulge and leak. Simple gravity probably accounts for the rest once a hole gets rusted through the sheet metal jacket of the cell. --Wtshymanski (talk) 17:12, 5 April 2009 (UTC)
thread_title:  Leaking ... why does it leak out? Internal cell pressure? 

message: consensus against move
:Alkaline battery → Alkaline electrochemical cell —
The electrochemical battery is simply a pair of electrochemical cells. this article deals around how this type of cell works. —Preceding unsigned comment added by 81.245.90.148 (talk • contribs) 11:58, 9 October 2009
* Oppose. Just wrong. This is one of several *highly dubious* renamings proposed by this IP address. There's no need to give encyclopedia articles obscure names when the common name is accurate and sufficient. --Wtshymanski (talk) 14:33, 9 October 2009 (UTC)
thread_title: Move

message: There is a move discussion in progress on Talk:Lead-acid battery which affects this page. Please participate on that page and not in this talk page section. Thank you.  —RFC bot 00:00, 11 October 2009 (UTC)
thread_title: Move discussion in process

message: Quoting the battery handbook for reference: Powdered
zinc is used for the anode to provide a large surface area for high-rate capability (that is, to
reduce current density) and to distribute solid and liquid phases more homogeneously (to
minimize mass-transport polarization of reactant and product).
On discharge, the manganese dioxide cathode undergoes at first a one-electron reduction
to the oxyhydroxide... (David Linden, Thomas B. Reddy (ed). Handbook Of Batteries 3rd Edition. McGraw-Hill, New York, 2002  Chapter 10, page 10.3-10.4 )
because I sometimes don't have it handy when I need to revert the vandals. --Wtshymanski (talk) 22:49, 9 December 2009 (UTC)
thread_title: Anode and cathode

message: Hi, when the pottasium hydroxide is leaking out it is not forming crystals. It is reacting with CO2 from air and forms Potassium carbonate (: 2KOH + CO2 → K2CO3 + H2O ). It is also corrosive and the reaction takes some time so the pottasium hydroxide is destroying surroundings as well.
I'm not so much advanced in english so i don't want to edit directly.  —Preceding unsigned comment added by 90.176.57.105 (talk) 18:03, 21 March 2010 (UTC)
thread_title:  leaking 

message: A fresh new tag calls this "start" class.  Let's look at Wikipedia:WikiProject Technology/Assessment 
 B-ClassThe article meets the following six criteria: 
: 1. It is suitably referenced, and all major points are appropriately cited. 
Nine references cited, most paragraphs have at least one reference except for some very general statements which are hardly controversial (bigger batteries have more capacity than smaller batteries, and the like).
: 2.  It reasonably covers the topic, and does not contain major omissions or inaccuracies. 
It has history, chemistry, capacity, recharging and disposal sections. Each section could be somewhat expanded, but there's no major ommissions.
:3. It has a defined structure, including a lead section and one or more sections of content. 
Duh. 
:4. It is free from major grammatical errors. 
Duh. "Word" just now only quarreled about a "that/which" substitution which I refuse to change merely on the advice of Word. 
: 5. It contains appropriate supporting materials, such as an infobox, images, or diagrams.
Infoboxes are a pox. We've got sufficient diagrams and pictures. 
:6. It is written from a neutral point of view 
Duh.  It's about a battery, even Wikieditors don't cry "jihad!" over batteries. 
:B-Class articles are selected by individual assessors.
I think it should be mandatory that any drive-by tagger give us a point by point evaluation against the project's criteria. I recommend that any article class evaluations not accompanied by a point by point evaluation should be removed as pointless Wikitwiddling. We *love* tags in this project because it's so much easier to tag something than to FIX it.  --Wtshymanski (talk) 16:00, 28 January 2011 (UTC)
replies: text: Agreed, many article assessments seem more like meta-editing, it lets people feel like they are contributing something, without really doing anything. Many are really no better than random vandalism. Are you done with your TPS reports? :) DMahalko (talk) 18:28, 28 January 2011 (UTC)
thread_title: Assessment

message: Apparently somewhere around 1967-1971 or so, the Mallory Battery Company (now Duracell) offered an alkaline reserve battery as a consumer product.  This could be kept on the shelf for years, then turning a screw in the top of the battery would break an internal electrolyte resevoir and make it ready to use.  Aside from  a breathless press release in a 1967 "Popular Science" I can't find much more about these; they didn't make it into the Linden battery handbook.  Has anyone seen any more on this reserve battery? --Wtshymanski (talk) 18:51, 16 March 2012 (UTC)
replies: text: I'll have a gander around my school’s archives, see if any more mentions come up. I think it probably never went anywhere though.--Lead holder (talk) 09:36, 17 March 2012 (UTC)
thread_title: Alkaline reserve battery?

message: Graph(s) would be very helpful. - Rod57 (talk) 02:07, 11 November 2014 (UTC)
thread_title:  graph of resistance and voltage as discharging 

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thread_title:  External links modified 

message: The "33 Ω" row and the table caption "Open circuit, zero-load voltage and voltage for a 33 Ω load (330 mW) vs capacity" are nonsense unless cell capacity or discharge rate (current/capacity) used is stated.  — Preceding unsigned comment added by 83.209.123.250 (talk) 22:56, 23 February 2018 (UTC)
replies: text: I've added the battery size (AA), and changed the 33 ohm to 330 mW. Without the full context the 33 ohm made no sense (the battery was powering a boost converter, and the 33 ohm load was connected to the output of the converter, not to the battery). At 1.5V, a 33 ohm load would only draw 68mW. Prevalence  19:59, 12 May 2019 (UTC)
thread_title:  Unscientific voltage table 

message: Edison didn’t invent the NiFe battery, this was invented by Jungner as well with the first patent registered in 1897 four years prior to Edison.  — Preceding unsigned comment added by 83.233.2.6 (talk) 20:31, 17 February 2020 (UTC)
thread_title:  Remove Edison as inventor 

message: I'm not sure if this is incorrect, since I don't know all that much about electrochemistry, but I was looking into alkaline batteries and found several sourceshttps://data.energizer.com/pdfs/alkaline_appman.pdfhttps://www.osti.gov/servlets/purl/1529287https://www.ill.eu/users/instruments/instruments-list/d1b/examples/why-cant-alkaline-batteries-be-recharged suggesting that MnOOH (or HxMnO2 for the last one) rather than Mn2O3 is produced at the MnO2 electrode. I can guess that MnOOH might decay into Mn2O3, but it still seems misleading to just describe Mn2O3 being formed if that isn't what's actually going on. Can someone who has a better understanding of this than I do please check this? I don't want to just edit it when I don't have a firm understanding of what's going on, especially since I also found a source claiming both that the given equation is correct and that the cathodic reaction on discharge is "not possible to describe [...] in a simple unambiguous way"https://www.doitpoms.ac.uk/tlplib/batteries/batteries_alkaline_mno.php. CuriousEnzyme (talk) 13:06, 1 June 2021 (UTC)
thread_title:  Incorrect chemistry - should be MnOOH? 

message: The construction section has no citations yet makes some bold claims 2406:2D40:4092:9310:D05F:DAAD:7EC2:CD51 (talk) 09:37, 23 April 2024 (UTC)
thread_title:  The construction section has no citations