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Under Battery Characteristics, Comparison to other batteries, Advantages: "...tolerating deep discharge for long periods. In fact, NiCd batteries in long-term storage are typically stored fully discharged."
Under Problems with NiCd, Cell reversal: "Another potential problem is reverse charging. This can occur...when a battery of several cells is fully discharged."
Don't suppose anyone can tell us which is correct? (The link to the Cell reversal source material (Ref 4) is giving me a 404 error.) -Keyesc (talk) 04:26, 7 November 2009 (UTC)Reply
The terms 'anode' and 'cathode' are too vague to be used to describe specific electrodes in a rechargeable battery. The 'anode' is the electrode from which conventional current flows into an electrochemical cell. In a rechargeable battery, the anode during discharge becomes the cathode during charging (and vice versa), hence the source of he vaguary. The author of the article may be mislead by the common (and incorrect) belief that the anode is always the positive electrode. See the intro section of anodeorcathode for more information. 86.179.167.116 (talk) 16:27, 22 December 2010 (UTC)Reply
It would be nice to have an explanation of just why nickel and cadmium, of all elements, make a good rechargeable battery. Thanks! -- 77.7.139.126 (talk) 00:58, 13 March 2011 (UTC)Reply
A further problem with NiCd batteries is the risk of damage to equipment if batteries are left in situ whilst equipment is not in use (for periods over a year). Over a long time the Potassium Hydroxide tends to leak out and is corrosive, leading to damage (eg to copper wiring). Problem similar to alkaline battery leaks. John a s (talk) 00:06, 18 September 2011 (UTC)Reply
What is the chemical reason for the memory effect? I'm guessing some kind of "crystallization" ("-type"?) phenomenon of the electrolyte itself (and/or only part of he electrolyte being crystallized, leading to the "voltage-drop-and-then-rise-again" effect?) Jimw338 (talk) 19:08, 7 September 2012 (UTC)Reply
Forcibly causing a battery to be overcharged to a point when gassing of hydrogen and oxygen seems rather dangerous. No citation is given for a "top-up" charge. I recommend elimination of this discussion unless further explanation of the benefit and and safety precautions are cited. This same discussion occurred in the course of discussion of lead-acid batteries and was subsequently removed. --96.244.244.244 (talk) 00:37, 26 October 2012 (UTC)Reply
While wiki does not require correctness, it requires verifiability through reliable sources. Since the parts that are uncited are obviously wrong, I have removed it. I've pruned things that are clearly wrong or can't make sense. NiCd battery needing "slightly different" voltage is incorrect. The voltage for NiCd is 1.25v nom, lead acid is 2v. LA is charged by voltage limiting while NiCd terminated by time, -dV or 0delta temp.Cantaloupe2 (talk) 17:35, 11 April 2013 (UTC)Reply
The Memory effect section seems to contradict itself by first describing the phenomenon and then saying that the original paper was retracted and that it's an urban myth. Well, which is it? It can't be both. It can't be real AND an urban myth. If it's real, the references to the GE paper and urban myth should be deleted. If it's an urban myth it should be mentioned at the top of the section, not at the end.
It appears when the article was written that 2 different battery types were confused NIMH (Nickel Metal Hydride) and NICD (Nickel Cadmium) So some of the article refers to NIMH and other parts refer to NICD. Primarily the "Memory Effect" applies to NICD not NIMH but created article conflict as a result. wizbang_fl 22:16, 17 April 2015 (UTC)
Please add the actual half-reactions and voltages, so we can see how the potential is developed. 71.139.161.30 (talk) 21:49, 3 December 2016 (UTC)Reply
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Most of the links in the "Notes" section are dead, including all the links referenced in the "Popularity" sub-section. 74.95.43.249 (talk) 20:09, 26 May 2017 (UTC)Reply