* Bradley Smith <BradleyS@artisansw.com> on Wed, 23 Aug 2000
| Just read some info at the site. Very interesting and it mentions the memory
| effect caused by crystalline formation in NiCAD and NiMH cells.
The article says that this is often called "memory" but it is *NOT* the
memory effect demonstrated by sintered plate NiCD cells. The "memory
effect" describes what happens to sintered plate NiCD cells in a
laboratory, where the cell "remembers" how much it had been charged in
previous cycles and refuses to be recharged past that point even if the
cell could hold a greater charge. NiMH and NiCD batteries you buy in the
store are paste type cells, and do not exhibit this phenomenon at all under
any circumstances or conditions.
Crystaline formation in NiMH and NiCD cells is a natural, normal occourance
as the cells go through their normal charge cycles. Crystaline formations
reduce maximum charge capacity. This is fundamentally different from
memory, but people still misuse the term because of the myth.
*That* is what the article says when everything is placed in proper
context.
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