95
Betavolt's miniature battery could spell the end of smartphone chargers
(mobilesyrup.com)
This is a most excellent place for technology news and articles.
Not unless it's profitable, at least....
Fortunately for us, Nickel 63 decays to plain old Copper 63, which is stable. Science! However too much copper in the diet can be deleterious.
Yes. After a few centuries it will be harmless.