Talk:Alkaline battery

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There is plenty of good simple science in batteries.

• Chemistry: ion flow, membrane properties and tradeoffs, redox potential
• Physics: energy density, capacity dependancies, internal resistance,
• History: lineage

Compare and contrast with Zinc carbon battery - article needed for this, and with Lithium battery too.

Bear in mind http://en.wikipedia.org/wiki/Battery_%28electricity%29

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)[reply]

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)

What are the temperature limitations on alkaline batteries? What happens when you exceed them? - Brewthatistrue 22:09, 23 Jun 2005 (UTC)

Goes boom and expells murcury gas...read the article...Kr5t 22:48, 21 May 2006 (UTC)[reply]

Where does it say anything about mercury gas? --Newton21989 01:55, 4 April 2007 (UTC)[reply]

Scroll down. --User:HaxOr｜HaxOr <% =now %> —Preceding unsigned comment added by 75.162.44.48 (talk) 02:15, 25 April 2008 (UTC)[reply]

Alkaline batteries are preferred for voltage sensitive electronic devices. The output voltage does not drop until totally drained of useful energy. Carbon-Zinc cell output voltage will consistently drop as energy is used which will result in erratic low voltage operation of electronic equipment, hence the alkaline requirement on most electronic equipment.

What is the impact of modern alkaline batteries on the environment? The fact that there is no longer mercury added to them helps, being a heavy metal, but are there any other traces of heavy metals in alkaline batteries?

There still is mercury...Kr5t 22:48, 21 May 2006 (UTC).[reply]

However at the site: www. duracell.com it reads that they have not had mercury in their batteries since they voluntarily discontinued producing them with it in 1993. —The preceding unsigned comment was added by 67.142.130.40 (talk • contribs). 18 nov 2006

I'm not very familiar with battery recycling, but it seems that this would be something good to add. Maybe some guidelines on proper battery disposal too. Update: I added a link on battery recycling which I thought was informative. —The preceding unsigned comment was added by 71.117.254.131 (talk • contribs). 4 Aug 2006

Can anyone put these compunds into english please?

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)[reply]

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)[reply]

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)[reply]

• I've had this happen many times while recharging alkaline batteries. This is potassium hydroxide and in my experience, has not seemed to cause any damage to myself or objects it comes in contact with. My advice, to be safe, is just wipe it up with a paper towel, or likewise and throw the battery (It's no good after it pops.) and the towel into a trash container.

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)[reply]

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)[reply]

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

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)[reply]

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)[reply]

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)[reply]

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)[reply]

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)[reply]

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)[reply]

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)[reply]

Does anyone else remember these from the 90s? A little strip on the side that would glow when a button was pressed to indicate the remaining capacity. Definitely a drain on the cell as they would get hot. If anyone can come up with a source I think it would be a nice addition to the article. Btyner (talk) 14:09, 22 August 2009 (UTC)[reply]

It has been proposed in this section that Alkaline battery be renamed and moved to Alkaline electrochemical cell. A bot will list this discussion on the requested moves current discussions subpage within an hour of this tag being placed. The discussion may be closed 7 days after being opened, if consensus has been reached (see the closing instructions). Please base arguments on article title policy, and keep discussion succinct and civil. Please use {{subst:requested move}}. Do not use {{requested move/dated}} directly. Links: current log • target log • direct 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)[reply]
• Oppose, this is at the common name and should remain. ~~ GB fan ~~ ^talk 15:19, 9 October 2009 (UTC)[reply]
• Strong Oppose and suggest speedy close (is that possible?). This is not what the general public would be looking for. HumphreyW (talk) 15:25, 9 October 2009 (UTC)[reply]
• Oppose WP:COMMONNAME 76.66.197.30 (talk) 16:12, 9 October 2009 (UTC)[reply]
• Oppose The term "battery" is almost always used by consumers, battery manufacturers, etc. TJ Spyke 17:29, 9 October 2009 (UTC)[reply]