What makes you think Panasonic didn't destroy their old tooling? WTF
would it end up on ebay?
Nobody dumped any tooling anyway*. They're still making the batteries.
Changing markings on a production line costs almost nothing and can be
done in minutes.
BTW, the ones I've gotten in production quantity through the
legitimate distribution chain were made in Panasonic's factory in
Indonesia, not in Japan. Here's why:-
Min wage per month (US$)
Indonesia $85
China (Shenzhen/GZ) $208/202
Japan $937
US $1257
Canada $1392
Despite Indonesia being a rather corrupt country with political
instability and creaky infrastructure, it's really, really cheap to
produce a simple product like a battery or button cell that has only a
few component parts (metal and chemicals and packaging).
* I toured a mothballed alkaline battery factory not that long ago- in
the Toronto area (mostly AA cells). Lots of machinery on the lines
(packaging and assembly). It's not much more sophisticated than
packaging toothpaste- cram the chemicals into the housing, seal it up,
test and package it. At ~$10 for 48 no-name batteries these days, I
don't think they had the scale to compete- it was only about 8000 or
10,000 ft^2 IIRC.
Best regards,
Spehro Pefhany