🚀 go-pugleaf

I have a need to re-enstate some nicads that have developed dead shorts.  I
have read discussions concerning zapping the cells with a relatively high
voltage (including 12 volt car batteries) for brief times until the shorting
condition disappears.  This is my question.  Once the resistance of the cell
has been restored, is there a given amount of resistance that is necessary?
That is, should I quit once I've gotten any resistance reading, or is the
job not done until the resistance reaches a minimum level?
Appreciation in advance.
Bob