Most NiCads batteries would not recover from such a
level.
How should NiCads be stored?
Sounds line 0v is a terrible idea.
I usually put them away at normal discharge,
about .8-1.0v and then charge a few hours before
next use.
All I really know is that:
o. 300 recharges is about all you can expect, and
o. topping off is no good
My guess is that unused NiCads could reach 0v
after a year or two on the shelf. If you restore a
collectable and then shelve it for 10 years only
to find it's dead _again_ it won't be gratifying.
It might not be worth sweating this detail, however.
I have noticed that NiMH prices have gone down
about half over the last 5 years.
John A.