Memory effect was mostly folklore, and, regardless, was only specific to one very specific type of nickel-cadmium battery. http://en.wikipedia.org/wiki/Memory_

Memory effect was mostly folklore, and, regardless, was only specific to one very specific type of nickel-cadmium battery. http://en.wikipedia.org/wiki/Memory_effect http://en.wikipedia.org/wiki/Memory_effect "True memory effect is specific to sintered-plate nickel-cadmium cells, and is exceedingly difficult to reproduce, especially in lower ampere-hour cells. In one particular test program designed to induce the effect, none was found after more than 700 precisely-controlled charge/discharge cycles"