Are you sure Erik ? LITHIUM ION explode very spectacularly, but I could get busted for Ni-Cad abuse over the years.
No, I may have confoosed the battery types. However, I have no idea if this is true, it is an educated guess, would number of possible charges with a reasonable amount of discharge possible be influenced by the method of charging. My drill batteries seem to have a longer useful life when they are not "rapid charged"

Erik