>     "An alternative to zapping is that you can apply
>      a high (eg 15V) voltage to the cell while
>      keeping a very close eye on a voltmeter."
>
> Given Ohms Law - I think you can count on quite a
> bit of something called 'current' to flow -
>
> - this isn't like trying to charge a dead, stone
> cold Lead-Acid cell ...
>
> I'm not going to recommend nor try this approach.

I should add that "suddenly" is actually over about 3-4
seconds. You can quite easily disconnect the high voltage
when the voltmeter reads 1.5V or less. Maybe you don't
have a big cap lying around, but you do have a car battery.

Take a little care and no harm will be done, like so many
other things in life (as a non-EE example I'm sick and tired
of people who don't look where they are going - walking is
not inherently dangerous but being careless on the road
or the pavement is)

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